The acceptable temperatures the building can reach can be represented by the following inequality:
75°F ≤ temperature ≤ 92°F
How to explain the inequalityThis inequality states that the temperature must be greater than or equal to 75°F, but less than or equal to 92°F. Any temperature within this range is acceptable.
To graph this inequality, we can use a number line with 75 and 92 marked as endpoints, and shade the region in between the two endpoints, including the endpoints themselves. This shaded region represents all the acceptable temperatures the building can reach, as shown below:
|-------|-------|-------|-------|-------|------> Temperature (°F)
70 75 80 85 90 95
<------ Shaded Region
In this graph, the shaded region between 75 and 92 represents all the temperatures that are acceptable for the building. Any temperature outside of this region is not acceptable and would cause the building to be too hot for staff to work in.
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Marta solved an equation. Her work is shown below. equation: 2(x-4) + 2x = x+7 line 1: 2x 81+ 2x = x + 7 line 2: 4x8=x+7 line 3: 3x - 8 = 7 line 4: 3x = 15 line 5: x = 5 Which step in Marta's work is justified by the distributive property?
Step-by-step explanation:
The distributive property of multiplication over addition states that for any numbers a, b, and c, a × (b + c) = a × b + a × c.
Looking at Marta's work, we can see that the distributive property was used in line 1, where she distributed the 2 to both terms inside the parentheses:
2(x - 4) + 2x = x + 7
2x - 8 + 2x = x + 7
4x - 8 = x + 7
Therefore, the step in Marta's work that is justified by the distributive property is line 1, where she distributed the 2 to both terms inside the parentheses.
Which BEST describes 2
perpendicular lines?
a) They are the same
b) They are negative reciprocals of each other
c) They are the same line
d) They have the same slopes
e) They have slopes that are negative reciprocals of each other.
The BEST choice for two perpendicular lines is: e) Their slopes are the reciprocal negatives of one another.
How could you tell if two lines were perpendicular to one another?Perpendicular lines are those that cross at a correct angle when two separate lines share a plane. Vertical and horizontal lines, or the axes of a coordinate plane, are perpendicular to one another. Two parallel lines' slopes have negative reciprocal slopes.
If two lines intersect at the a right angle in Euclidean geometry, they are said to be parallel (90 degrees).
When two lines are parallel, their slopes are the reciprocal of each other's negative values. A slope of the second line would be "-1/m" if the curve of the initial line is "m."
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Rajan brought a book for Rs 180 and sold it to sajan at a profit of 20%. Sajan sold that book to Nirajan at a loss of20%. At what price Nirajan should sell the book to receive 5% profit.
Answer:
Ans: Rs 181.44.
Step-by-step explanation:
What percent of 25 Doctors equals 2
The percent of 25 doctors which is equivalent to 2 as required to be determined is; 8%.
What is the equivalent of 2 out of 25 doctors?As evident from the task content; the percent of 25 doctors which is equivalent to 2 is to be determined.
On this note, the percentage can be determined using the percent proportion formula as follows where x = the required percentage.
x / 100 = 2 / 25
25x = 200
x = 200 / 25
x = 8.
Hence, the equivalent percentage as required to be determined is; 8%.
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A car dealership uses the linear model y= -1100x + 25,000 to predict the depreciation of car values as time progresses. If x is how old the vehicle is in years and y is the current value of the vehicle,
what will the value of the vehicle be 5 years after purchase?
The value of the vehicle 5 years after purchase will be $12,500. After we predict the depreciation of car values as time progresses.
Due to use, wear, and tear, or becoming obsolete, an asset loses value over time. Depreciation is the measurement of this decrease.
Using the given linear model y = -1100x + 25,000, we can substitute x = 5 (since we want to find the value after 5 years of purchase) and solve for y:
y = -1100(5) + 25,000
y = -5500 + 25,000
y = 19,500
Therefore, the value of the vehicle 5 years after purchase will be $19,500.
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The Texas Lottery lists the following probability for winning with a ticket.
Winnings Probability $300,000 1/5,518,121 $70,000 1/1,715,449 $600 1/9,024 $18 1/1,768 $5 1/358 $3 1/166 (a) What is the probability you win a positive amount of money? Round to two decimal places (b) What would the ticket have to cost (in positive dollars) for this lottery to be fair, in the sense that your expected profit is $
A) the probability of winning a positive amount of money is approximately 0.000487.
B) the ticket would have to cost $0.0522 (or approximately $0.05) for this lottery to be fair, in the sense that the expected profit is $0.
What is the justification for the above response?
(a) To calculate the probability of winning a positive amount of money, we need to add up the probabilities of winning each prize except for the $0 prize:
Probability of winning a positive amount
= Probability of winning $300,000 + Probability of winning $70,000 + Probability of winning $600 + Probability of winning $18 + Probability of winning $5 + Probability of winning $3
Probability of winning a positive amount
= 1/5,518,121 + 1/1,715,449 + 1/9,024 + 1/1,768 + 1/358 + 1/166
Probability of winning a positive amount
≈ 0.000487 (to two decimal places)
Thus, the probability of winning a positive amount of money is approximately 0.000487.
(b) To find the ticket cost that makes the lottery fair, we need to calculate the expected profit, which is the sum of the products of the probability of winning each prize and the amount of money won for that prize. Since there are six possible prizes, the expected profit can be written as:
Expected profit = (1/5,518,121)($300,000) + (1/1,715,449)($70,000) + (1/9,024)($600) + (1/1,768)($18) + (1/358)($5) + (1/166)($3) - Ticket cost
Simplifying the expression above, we get:
Expected profit
= $0.0522 - Ticket cost
For the lottery to be fair, the expected profit should be $0. Therefore, we can set the expected profit equal to $0 and solve for the ticket cost:
$0 = $0.0522 - Ticket cost
Ticket cost = $0.0522
Therefore, the ticket would have to cost $0.0522 (or approximately $0.05) for this lottery to be fair, in the sense that the expected profit is $0.
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→Be sure to use three to six complete sentences in your response.
Answer:
1. To expand the polynomial f(x) = (x-3)(x+2)(x+3), we can use the FOIL method twice, where we first multiply (x-3) and (x+2) using FOIL, then multiply the resulting binomial by (x+3) using FOIL again.
2. To expand the polynomial g(x) = (x-3)(x+2)(x-2), we can also use the FOIL method twice, where we first multiply (x-3) and (x+2) using FOIL, then multiply the resulting binomial by (x-2) using FOIL again.
3. The polynomial f(x) has three linear factors, and so the degree of the polynomial will be 3, since we will have to multiply three binomials together. The polynomial g(x) has four linear factors, and so the degree of the polynomial will be 4.
If we were to expand a polynomial with five linear factors, the degree of the polynomial would be 5, since we would have to multiply five binomials together.
4. The degree of a polynomial is determined by the highest power of x in the polynomial, which is determined by the number of terms in the expanded polynomial expression.
(6 sentences to use):
1. To expand the polynomial (x-3)(x+2)(x+3), we use the distributive property and multiply each term of the first binomial by each term of the second binomial, then multiply the resulting trinomial by the third binomial.
2. To expand the polynomial (x-3)(x+2)(x-2), we use the same strategy as in the previous example, multiplying each term of the first binomial by each term of the second binomial, and then multiplying the resulting trinomial by the third binomial.
3. The polynomial f(x) has three linear factors, so its degree is 3, which means the highest exponent in the polynomial is 3.
4. The polynomial g(x) has four linear factors, so its degree is 4, which means the highest exponent in the polynomial is 4.
5. If we were to expand a polynomial using five linear factors, we would again use the distributive property to multiply each term of each binomial together, resulting in a polynomial with a degree of 5, which means the highest exponent in the polynomial would be 5.
6. This strategy for multiplying three binomials is a useful tool in algebraic manipulation, allowing us to expand and simplify polynomial expressions.
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Write the first 5 terms of a sequence whose general term, An, is given as an =-9n-9
The first 5 terms of the sequence, whose general term is an = -9n - 9, would be the following: -18, -27, -36, -45, -54.
How to Calculate the Terms of a Sequence?In mathematics, a sequence is an ordered list of numbers, called terms, that follow a particular pattern or rule. Each term in a sequence is identified by its position in the sequence, which is usually represented by an integer index or subscript.
To find the first 5 terms of the sequence with the general term an = -9n - 9, we can simply substitute the values of n from 1 to 5 into the formula and simplify:
a1 = -9(1) - 9 = -18
a2 = -9(2) - 9 = -27
a3 = -9(3) - 9 = -36
a4 = -9(4) - 9 = -45
a5 = -9(5) - 9 = -54
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Deshaun runs each lap in 4 minutes. He will run at most 7 laps today. What are the possible numbers of minutes he will run today?
Use t for the number of minutes he will run today.
Write your answer as an inequality solved for t.
this question is an inequality o please write ur answer as one
The inequality is t ≤ 28.
What is inequality?Inequalities serve as the defining characteristic οf the relatiοnship between twο values that are nοt equal. Equal dοes nοt imply inequality. Typically, we use the "nοt equal symbοl (≠)" tο indicate that twο values are nοt equal. But different inequalities are used tο cοmpare the values tο determine whether they are less than οr greater than.
Given that Deshaun runs each lap in 4 minutes. He will run at mοst 7 laps tοday.
Assume that t fοr the number οf minutes he will run tοday.
He will run at mοst 7×4 = 28 minutes.
The symbοl οf at mοst is ≤.
The inequality is t ≤ 28
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A cylinder has a height of 30 ft and a volume of 63,679 ft³. what is the radius of the cylinder? round your answer to the nearest whole number. responses 676 ft 676 ft 338 ft 338 ft 52 ft 52 ft 26 ft
The correct response is (f) 26 ft. The radius of the cylinder is approximately 26 ft.
To solve for the radius, we can use the formula for the volume of a cylinder, V = πr²h, where V is the volume, r is the radius, and h is the height. We can plug in the given values to get:
63,679 = πr²(30)
Dividing both sides by 30π gives:
r² = 676
Taking the square root of both sides gives:
r ≈ 26
Rounding to the nearest whole number gives the answer of 26 ft. Therefore, the correct response is (f) 26 ft.
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Complete Question:
A cylinder has a height of 30 ft and a volume of 63,679 ft³. what is the radius of the cylinder? round your answer to the nearest whole number. responses
a) 676 ft
b) 676 ft
c)338 ft
d) 338 ft
e) 52 ft
f) 26 ft.
Find an equation of the line with gradient 1/3 and passes through the point (5,-1)
Answer:
y = x/3 - 8/3 (OR) 3y = x - 8
Both of the above solutions are the same
Step-by-step explanation:
Using the form 'y=mx+c',
Since m = 1/3,
y = 1/3x + c
Substituting (5, -1) into the above equation:
-1 = 5/3 + c
c = -1 - 5/3
= -8/3
Hence,
y = x/3 - 8/3
(which is also the same as)
3y = x - 8
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A couple has $5,000 to invest and has to choose between three investment options.
• Option A: 2.25% interest applied each quarter
• Option B: 3% interest applied every 4 months
• Option C: 4.5% interest applied twice each year
If they plan on no deposits and no withdrawals for 5 years, which option will give them the largest
balance after 5 years? Use a mathematical model for each option to explain your choice. Share the
value of each investment.
Make sure you use the formula from the lesson for each option then compare. As an investment, you
want the option with the most money!
nt
A = P(1 +r )"nt
—
n
Salim walked 1 1/3 miles to school and then 2 1/2
miles to work after school. How far did he walk in all?
In response to the query, we can state that Salim thereby covered a total fraction distance of about 3.83 miles.
what is fraction?To represent a whole, any number of equal parts or fractions can be utilised. In standard English, fractions show how many units there are of a particular size. 8, 3/4. Fractions are part of a whole. In mathematics, numbers are stated as a ratio of the numerator to the denominator. They can all be expressed as simple fractions as integers. In the numerator or denominator of a complex fraction is a fraction. The numerators of true fractions are smaller than the denominators. A sum that is a fraction of a total is called a fraction. You can analyse something by dissecting it into smaller pieces. For instance, the number 12 is used to symbolise half of a whole number or object.
Salim therefore walked a total of:
4/3 Plus 5/2 miles
We must identify a common denominator in order to add these fractions:
Six is the least frequent multiple of 3 and 2.
We may therefore rephrase the following fractions with denominators of 6:
4/3 = (4/3) x (2/2) = 8/6
5/2 = (5/2) x (3/3) = 15/6
We can now combine the fractions:
8/6 + 15/6 = 23/6
Salim covered a distance of 23/6 miles in all.
This fraction can be simplified by dividing both the numerator and denominator by their largest common factor, which is 1:
3.83 miles, or 23/6 miles (rounded to two decimal places)
Salim thereby covered a total distance of about 3.83 miles.
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i dont know how to do this
the answer isnt 4
pls answer if u know with simple working
Answer:
13 matches
Step-by-step explanation:
Notice 1st have 4 matches
then 2nd have 7 matches (since one is shared), this is 8-1
then 3rd have 10 matches (since two are shared) this is 12-2
Notice the pattern 4 matches per square minus one per aditional square from the first.
This give an equation
4n-1(n-1)= 3n+1
lets check
For n=1 matches= 3(1)+1=4
For n=2 matches= 3(2)+1=7
For n=3 matches= 3(3)+1=10
It works.
so
For n=4 matches= 3(4)+1=13
A plane can fly 340 mph in still air. If it can fly 200 miles downwind in the same amount of time it can fly 140 miles upwind, find the velocity of the wind.
By using the speed fοrmula, the velοcity οf the wind is apprοximately 66.23 mph.
What is speed?Speed is defined as the distance travelled by an οbject in a given amοunt οf time. Speed is a scalar quantity, meaning that it has magnitude but nο directiοn. Mathematically, speed is calculated as fοllοws:
speed = distance/time
where "distance" is the distance travelled by the οbject, and "time" is the time it takes fοr the οbject tο travel that distance.
Let's assume that the speed οf the wind is represented by the variable "v" (in mph). When the plane flies dοwnwind, the speed οf the plane relative tο the grοund is the sum οf its airspeed and the wind speed, οr (340 + v) mph. Similarly, when the plane flies upwind, the speed οf the plane relative tο the grοund is the difference between its airspeed and the wind speed, οr (340 - v) mph.
Nοw, lets use the fοrmula:
time = distance / speed
tο set up twο equatiοns and sοlve fοr the wind speed "v".
First, fοr the dοwnwind flight:
time = distance / speed
200 / (340 + v) = t
Secοnd, fοr the upwind flight:
time = distance / speed
140 / (340 - v) = t
Since the time taken fοr bοth flights is the same, we can equate the twο equatiοns:
200 / (340 + v) = 140 / (340 - v)
Nοw, we can sοlve fοr "v":
200(340 - v) = 140(340 + v)
68,000 - 200v = 47,600 + 140v
308v = 20,400
v ≈ 66.23
Therefοre, the velοcity οf the wind is apprοximately 66.23 mph.
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i need help on this question
Answer:[tex]180\pi[/tex]
Step-by-step explanation:
[tex]v=\pi rx^{2} h\\v=\pi 6^{2} 5\\\\v=180\pi[/tex]
Find the sum and product of the complex numbers \( 2-3 i \) and \( -2+6 i \). The sum is (Type your answer in the form \( a+b i \).) The product is (Type your answer in the form \( \mathrm{a}+\mathrm{
The given complex numbers are 2 - 3i and -2 + 6i. We need to find the sum and product of the given complex numbers.
Sum of the complex numbers = (2 - 3i) + (-2 + 6i)
= 2 - 2 + (-3i + 6i)
= 4i
Therefore, the sum of the given complex numbers is 4i.
Now, let's find the product of the given complex numbers.
Product of the complex numbers = (2 - 3i) (-2 + 6i)
= -4 + 12i + 6i - 18i^2
= -4 + 18i + 18 (as i^2 = -1)
= 14 + 18i
Therefore, the product of the given complex numbers is 14 + 18i.
Hence, the sum of the given complex numbers is 4i and the product of the given complex numbers is 14 + 18i.
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Consider drawing four cards without replacement from a standard deck of cards. What is the conditional probability of drawing a heart on the fourth draw, given that the first three cards are not hearts?
Group of answer choices:
13/52 or 1/4
10/49
10/52 or 5/26
13/49
The conditional probability of drawing a heart on the fourth draw given that the first three cards are not hearts is 13/49.. The correct answer is D.
After drawing three cards without replacement, there are 52 - 3 = 49 cards remaining in the deck, of which 13 are hearts and 36 are not hearts.
If the first three cards are not hearts, then there are 36 cards remaining in the deck for the fourth draw, of which 13 are hearts and 23 are not hearts.
The conditional probability of drawing a heart on the fourth draw, given that the first three cards are not hearts, can be calculated using Bayes' theorem:
P(heart on 4th draw | first 3 not hearts) = P(heart on 4th draw and first 3 not hearts) / P(first 3 not hearts)
The probability of drawing a heart on the fourth draw and the first three not being hearts is:
P(heart on 4th draw and first 3 not hearts) = (36/52) * (35/51) * (34/50) * (13/49) = 0.0334
The probability of the first three cards not being hearts is:
P(first 3 not hearts) = (36/52) * (35/51) * (34/50) = 0.5764
Therefore, the conditional probability of drawing a heart on the fourth draw, given that the first three cards are not hearts, is:
P(heart on 4th draw | first 3 not hearts) = 0.0334 / 0.5764 ≈ 0.058 or approximately 5.8%.
Therefore, the answer is 13/49. The correct answer is D.
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Construct a function that passes through the origin with a constant slope of 1, with removable discontinuities at x=−4 and x=2Enclose numerators and denominators in parentheses. For example, (a−b)/(1+n).f(x)=
The function f(x)= (x+4)(x-2)/(x+4)(x-2) passes through the origin with a constant slope of 1, and has two removable discontinuities at x=-4 and x=2.
The function that passes through the origin with a constant slope of 1 and has removable discontinuities at x=-4 and x=2 is given by:
f(x)= (x+4)(x-2)/(x+4)(x-2). This function can be written in its factored form as f(x)= 1.
The function has a constant slope of 1, which means that for any two points (x_1,y_1) and (x_2,y_2) the slope is given by
(y_2-y_1)/(x_2-x_1)=1.
The function has two removable discontinuities at x= -4 and x= 2. This means that at these points the function is undefined, and the derivative of the function is infinite.
Removable discontinuities can be resolved by factoring out a common factor from the numerator and denominator of the function. In the case of the given function, factoring out (x+4) and (x-2) resolves the discontinuities. The graph of the function is a straight line which passes through the origin. This is because the function is of the form y=mx, where m is the constant slope of 1, which makes the function pass through the origin.
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I need some help with it
The Answer is approximately equal to 942.48 or 300π
(π=pi)
let be an integral domain with a descending chain of ideals . suppose that there exists an such that for all . a ring satisfying this condition is said to satisfy the descending chain condition, or dcc. rings satisfying the dcc are called artinian rings, after emil artin. show that if satisfies the descending chain condition, it must satisfy the ascending chain condition.
As before, it follows that A3 is a maximal ideal of R, contradicting the fact that the chain is infinite. Therefore, R satisfies the ACC.
It is given that be an integral domain with a descending chain of ideals. Suppose that there exists an n such that for all i ≥ n, then ai = an. A ring satisfying this condition is said to satisfy the descending chain condition or DCC. Rings satisfying the DCC are called Artinian rings, after Emil Artin.
The statement to be proved is if R satisfies the descending chain condition, it must satisfy the ascending chain condition. Suppose, by contradiction, that R satisfies the DCC but does not satisfy the ACC. Then, there is an infinite ascending chain: A1 ⊂ A2 ⊂ A3 ⊂ A4 ⊂ ···.
Note that if R is an integral domain and if a ∈ R, then (a) is either (0) or is a maximal ideal in R. Hence, (0) is a minimal element in the collection of all proper ideals of R. Suppose A1 is a proper ideal of R that is maximal with respect to not being finitely generated. Since R satisfies the DCC, A1 cannot be infinite. Therefore, A1 is a finite set. Suppose A1 is not principal.
Then there exist two elements a, b ∈ A1 that do not belong to (a) and (b) respectively. This means that (a, b) is a proper ideal of R, properly containing A1, which contradicts the maximality of A1. Thus, A1 is a principal ideal generated by an element a1 ∈ A1.Suppose A2 = (a1, a2, a3, · · · , am) is a proper ideal properly containing A1. If A2 is finitely generated, then A2 ⊃ (a1) ⊃ (0) is a finite descending chain of ideals, which contradicts the DCC.
Thus, A2 is not finitely generated. By the maximality of A1, A2 must be principal, generated by an element a2 ∈ A2. It follows that a2 = c1a1 + c2a2 + · · · + cmam, where ci ∈ R for all i. Hence, (1 − c2)a2 = c1a1 + · · · + cmam, which means that a2 ∈ (a1). Therefore, (a1) = A1 = A2, and it follows that A2 is a maximal ideal of R.
Suppose A3 is a proper ideal properly containing A2. If A3 is finitely generated, then A3 ⊃ A2 ⊃ (0) is a finite ascending chain of ideals, which contradicts the ACC. Thus, A3 is not finitely generated. By the maximality of A2, A3 must be principal, generated by an element a3 ∈ A3.
As before, it follows that A3 is a maximal ideal of R, contradicting the fact that the chain is infinite. Therefore, R satisfies the ACC.
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Pls help help Algebra1
Answer:
(x-1)(x+6)
Step-by-step explanation:
suppose we draw 2500 samples of size 100 from a population and compute a 97% confidence interval for each sample. approximately how many of those intervals will contain the population mean?
There are approximately 2425 of those intervals that will contain the population means.
What is a confidence interval?A confidence interval is a range of values that includes a parameter estimate with a certain degree of certainty. A confidence interval is a measure of uncertainty about an estimation procedure, rather than a statement about a parameter. A confidence interval is a specific value or a range of values in statistics that is used to estimate population characteristics.
This is because a 97% confidence interval means that if we were to repeat the sampling process many times, about 97% of the resulting intervals would contain the population mean. In other words, we would expect 97% of the intervals to be "correct" in the long run, while about 3% of them would not contain the population mean.
Therefore, out of the 2500 intervals we compute, we would expect approximately 0.97 x 2500 = 2425 intervals to contain the population mean, and about 0.03 x 2500 = 75 intervals not to contain the population mean. However, it's important to note that the actual number of intervals that contain the population means may vary from this expected value due to random sampling variability.
Where, [tex]\[\bar{x}\][/tex] is the sample mean
[tex]\[\frac{s}{\sqrt{n}}\][/tex] is the standard error of the mean
zα/2 is the z-score that covers α/2 in the tails of a normal distribution.
As we draw 2500 samples of size 100 from a population and compute a 97% confidence interval for each sample, the proportion of the sample will contain the population means.
Therefore, the number of intervals that will contain the population mean is approximately 2425.
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House Loan
Cost: $450,000
Length of Loan: 30 Years
Simple Interest Rate: 6.00%
Yearly Taxes: $2,000
Yearly Insurance: $1,500
What are your Monthly Payments with taxes & insurance:
Step-by-step explanation:
Your monthly payments with taxes and insurance included would be $2,903.71. This is calculated by taking the loan amount of $450,000 and multiplying it by the simple interest rate of 6.00%. The result is $27,000, which is then divided by the length of the loan, 30 years. This gives you
the principal and interest portion of your monthly payment, which is $2,033.33. To that, you add your yearly taxes of $2,000 and insurance of $1,500, divided by 12 months, to get an additional $416.67 and $125, respectively. Adding these two numbers together gives you your total monthly payment of $2,903.71.
Is 14x + 2 equivalent to 16x?
Answer:
No
Step-by-step explanation:
14x + 2 ≠ 16x
Because 2 doesn't have an x variable, it can't be added with 14x!
Use this tax table to find how much tax you need to pay on a taxable income of $25,000.
If taxable income is over-- But not over-- The tax is:
$0 $7,825 10 percent of the amount over $0
$7,825 $31,850 $782. 50 plus 15 percent of the amount over 7,825
$31,850 $77,100 $4,386. 25 plus 25 percent of the amount over 31,850
$77,100 $160,850 $15,698. 75 plus 28 percent of the amount over 77,100
$160,850 $349,700 $39,148. 75 plus 33 percent of the amount over 160,850
$349,700 no limit $101,469. 25 plus 35 percent of the amount over 349,700
On a taxable income of $25,000, you must pay $3,358.75 in taxes.
To find how much tax you need to pay on a taxable income of $25,000, you will need to use the tax table given.
Since $25,000 falls in the third row of the table, which is for taxable income over $7,825 but not over $31,850, we will need to use the formula for this row:
Tax = $782.50 + 15% of the amount over $7,825
To calculate the tax, we need to first find the amount over $7,825, which is:
25,000 - 7,825 = 17,175
Now we can substitute this into the formula to get:
Tax = 782.50 + 0.15 x 17,175
Tax = 782.50 + 2,576.25
Tax = 3,358.75
Therefore, the amount of tax you need to pay on a taxable income of $25,000 is $3,358.75.
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The volume of a triangular pyramid is 273 units³. If the base and height of the
triangle that forms its base are 14 units and 9 units respectively, find the height of the
pyramid.
the height of the triangular pyramid is 13 units.
How to solve?
The formula for the volume of a pyramid is given by V = (1/3)Bh, where B is the area of the base and h is the height of the pyramid. In the case of a triangular pyramid, the base is a triangle, so the area of the base is given by A = (1/2)bh, where b is the base length and h is the height of the triangle.
Given that the volume of the triangular pyramid is 273 units³, we have:
V = (1/3)Bh = 273
We know that the base of the triangular pyramid has a base length of 14 units and a height of 9 units, so its area is:
A = (1/2)bh = (1/2)(14)(9) = 63
Substituting this value for B in the equation for the volume, we have:
(1/3)(63)h = 273
Multiplying both sides by 3, we get:
63h = 819
Dividing both sides by 63, we get:
h = 13
Therefore, the height of the triangular pyramid is 13 units.
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unit 7 right triangle and trigonometry quiz 7-2
Yes, trigonometry only works on the right angled triangles.
Explain about the Right triangle and trigonometry?The study of correlations between triangles' side lengths and angles is known as trigonometry.
A triangle with one right angle is referred to as a right triangle as well as right-angled triangle. Trigonometry's foundation is the relationship between a right triangle's sides and angles.The area of mathematics called trigonometry deals with calculating triangles' unknowable sides and angles.There are numerous uses for trigonometry in both engineering and science. We will just provide a couple of instances from surveying as well as navigation in this section.Thus, the right angle, or 90°, is always one angle. The hypotenuse is the side with the 90° angle opposite. The longest side is always the hypotenuse. The other two inner angles add up to 90 degrees.
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The complete question is-
Right triangle and trigonometry:
Does trigonometry work on right triangles?
suppose that the matrix has repeated eigenvalue with the following eigenvector and generalized eigenvector: with eigenvector and generalized eigenvector write the solution to the linear system in the following forms.
The solution to the linear system with repeated eigenvalues can be written in two forms: the exponential form and the Jordan form. In the Jordan form, the solution is written as: [tex]x(t) = e^(J*t) * v_0[/tex]
In the exponential form, the solution is written as:
[tex]x(t) = e^(lambda*t) * (v + t*w)[/tex]
Where lambda is the repeated eigenvalue, v is the eigenvector, and w is the generalized eigenvector.
In the Jordan form, the solution is written as : [tex]x(t) = e^(J*t) * v_0[/tex]
Where J is the Jordan matrix, which is a matrix with the repeated eigenvalue lambda on the diagonal and a 1 on the superdiagonal, and v_0 is the initial condition vector.
Both forms of the solution give the same result, but the exponential form is simpler and easier to compute. The Jordan form is more general and can be used to find the solution for any linear system with repeated eigenvalues.
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what do we need to add to 2 / 1 8 to make 5
Answer:
[tex]4\frac{8}9}[/tex]
Step-by-step explanation:
We can do this mathematically.
[tex]5-\frac{2}{18} = \frac{90}{18} - \frac{2}{18} = \frac{88}{18} = \frac{44}{9} = 4\frac{8}{9} \\[/tex]
We can also work this logically.
We know that [tex]\frac{2}{18}[/tex] is less than 1, so our answer should be (5-1) and a fraction.
Our answer should be 4 plus a fraction less than 1. To find what we need to add to [tex]\frac{2}{18}[/tex] to make 1, we ask ourself how many eighteenths make 1. So if we need to 18 parts and we have 2 already, we add 16 eighteens to make 1. The answer is [tex]4 \frac{16}{18}[/tex], or simplified, [tex]4\frac{8}9}[/tex].