The following equation can be used to describe isotope decay: [tex]N(t) = N₀e^(kt) (kt)[/tex]where: The quantity of thulium-167 extant at time t is denoted by N(t) (in days).
N0 is the starting concentration of thulium-167 (in grams). decay constant is denoted by k. The natural logarithmic base is e. (approximately 2.71828). We may utilise the stated decay rate of -0.75 to obtain the constant k. k = ln(1 - 0.75) / (-1) (-1) k = 0.2877 As a result, the equation for thulium-167 decay is: N(t) =[tex]N₀e^(0.2877t)[/tex] (0.2877t) We'd want to know how long it takes for 500 g of the isotope to decay toequation can be used to describe 250 g. We'll refer to this as t1. We may The following equation can be used to describe isotope decay.
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line bm bisects angle abc if angle mbc is 32 degrees what is the measure of anble abc
The measure of angle abc is 64 degrees.
What is the measure of angle abc?An angle bisector is simply a line or ray that divides an angle into two equal parts.
Given that;
Line bm bisects angle abc.
Angle mbc = 32 degreesAngle abc = ?First, we determine the measure of angle abm.
Since line bm bisects angle abc, it divides the angle into two equal parts.
Hence;
Angle mbc = angle abm
Angle abc = angle mbc + abm
Plug in the value
Angle abc = 32 degrees + 32 degrees
Angle abc = 64 degrees.
Therefore, 64 degrees is the measure of ∠b.
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Please answer
Determine the common difference of the arithemetic sequence in which a1=3 and a4=15
Check the picture below.
The common difference of the arithmetic sequence in which a1=3 and a4=15 is d = 4
What is an arithmetic sequence?An arithmetic sequence is a sequence of integers with its adjacent terms differing with one common difference.
If the initial term of a sequence is 'a' and the common difference is of 'd', then we have the arithmetic sequence as:
a, a + d, a + 2d, ... , a + (n+1)d, ...
Its nth term is [tex]T_n = a + (n-1)d[/tex]
(for all positive integer values of n)
And thus, the common difference is [tex]T_{n+1} - T_n[/tex]
for all positive integer values of n
Given that a1=3 and a4=15
nth term of G.P is ;
Calculation:
[tex]T_n = a + (n-1)d[/tex]
a1 = 3
a2 = 3+ d
a3 = 3+ d
a4=15
3 + 3d = 15
d =4
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Oint
MRS. JAMISON'S CLASS
MR. ZIMMERMAN'S CLASS
0
+ +
1 2 3 4 5 6
NUMBER OF TVs PER HOUSEHOLD
7
0 1 2 3
5 6
NUMBER OF TVs PER HOUSEHOLD
What is the median number of TVs in Mrs. Jamison's class?
The median number of TVs in Mrs. Jamison's class is 2, (i.e. the middle number).
To find the median of the given data of the number of TVs in Mrs. Jamison's class:
First we have to list all the values from least to greatest.
Then, find the middle number (in case if there is one middle number) then that will be the median of the data.
And if there is two middle number, we have to find the average of the two middle numbers and the result will be our answer i.e. median.
So, The data is 0,0,0,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,4,4,5,6
The middle number from the data is 2
Therefore, the median is 2.
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Janet is frosting the top layer of 4 rectangular birthday cakes. If each cake measures 13 inches by 8 inches, how many square inches of cake will be covered by frosting?
Janet will cover 416 square inches of rectangular cake with frosting.
What exactly is a rectangle?
A rectangle is a geometric shape that has four sides and four right angles (90 degrees). It is a type of quadrilateral, which means a four-sided polygon. The opposite sides of a rectangle are parallel and equal in length, and the adjacent sides are perpendicular to each other.
The area of a rectangle can be calculated by multiplying its length and width (or base and height) together, while its perimeter is the sum of the lengths of all four sides.
Now,
Since Janet is frosting the top layer of 4 rectangular birthday cakes, we need to calculate the total area of the top layer of all 4 cakes combined.
Each cake measures 13 inches by 8 inches, so the area of one cake is:
13 inches x 8 inches = 104 square inches
The top layer of one cake will have the same dimensions, so the area of the top layer of one cake is also 104 square inches.
To find the total area of the top layer of all 4 cakes combined, we can multiply the area of one cake by 4:
Total area = 104 square inches/cake x 4 cakes = 416 square inches
Therefore, Janet will cover 416 square inches of cake with frosting.
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Verify that $\triangle ABC\sim\triangle DEF$ . Find the scale factor of $\triangle ABC$ to $\triangle DEF$ .
$\triangle ABC:\ AB\ =\ 10,\ BC\ =\ 16,\ CA\ =\ 20$
$\triangle DEF:\ DE\ =\ 25,\ EF\ =\ 40,\ FD\ =\ 50$
So the scale factor of triangle ABC to triangle DEF is 2/5.
What is similar triangle?Similar triangles are two triangles that have the same shape, but not necessarily the same size. This means that their corresponding angles are equal, and their corresponding sides are proportional.
Here,
To verify if the two triangles are similar, we need to check if their corresponding angles are congruent and if their corresponding sides are proportional.
Checking corresponding angles:
∠A corresponds to ∠D
∠B corresponds to ∠E
∠C corresponds to ∠F
Checking corresponding sides:
AB/DE = 10/25 = 2/5
BC/EF = 16/40 = 2/5
CA/FD = 20/50 = 2/5
Since the corresponding angles are congruent and the corresponding sides are proportional, we can conclude that triangle ABC is similar to triangle DEF. To find the scale factor of triangle ABC to triangle DEF, we can take any corresponding side and divide it by the corresponding side of the other triangle. For example:
AB/DE = 2/5
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Solve, (x + 2) (x +3) – (x + 2) (x – 3) = 0
Answer:
The value of x is -2.
Step-by-step explanation:
(x+2) (x+3) - (x+2) (x-3) =0
Multiplying
x(x+3) +2(x+3) - [x(x-3) +2(x-3) =0
x² +3x +2x +6 -[x²-3x +2x -6] =0
Opening the bracket
x²+3x +2x +6 -x²+3x-2x+6=0
Adding the like terms
6x+12=0. [x²-x²=0]
6x = -12
x = -12 ÷6
x = -2
A spinner has three sections which are coloured red, green and blue.
Chris spun the spinner 100 times in total.
The frequency of spins that landed on green was 35.
The ratio of the frequency of red to the frequency of green was 4 : 7.
What is the estimated probability of the spinner landing on blue?
Give your answer as a decimal.
The estimated probability of the spinner landing on blue is 0. This means the spinner will not land on blue.
What is probability?Probability is the measure of how likely an event is to occur out of the number of possible outcomes. It is expressed in terms of a number between 0 and 1, where 0 means that the event is impossible and 1 means the event is certain. Probability is used to calculate the likelihood of an event or outcome in a variety of situations, from predicting the weather to playing the lottery.
The estimated probability of the spinner landing on blue can be calculated by using the ratio of the frequency of red to the frequency of green.
As the ratio is 4 : 7, the frequency of red is 4/11 of the total frequency of 100 spins. The frequency of green is 7/11 of the total frequency of 100. Therefore, the frequency of blue is 100-(4/11+7/11) which is 1 – (11/11) = 0.
Therefore, the estimated probability of the spinner landing on blue is 0. This means the spinner will not land on blue.
To calculate the estimated probability, first we need to calculate the total frequency of all the sections. This is done by adding all the frequencies of the sections together. In this case, the total frequency is 100. Then using the ratio of the frequency of red to the frequency of green, calculate the frequency of red and the frequency of green. Subtract the total frequency and the total frequency of red and green from the total frequency, to get the frequency of blue. Finally, divide the frequency of blue by the total frequency and convert it into a decimal. This will give us the estimated probability of the spinner landing on blue.
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Write a vertical motion model in the form h(t)=-16t^2+v0^2+h0 for each situation presented. For each situation, determine how long, in seconds, it takes the thrown object to reach maximum height.
Initial velocity: 120 ft/s; initial height: 50 ft
Answer:
-16t^2 + 120t + 50
Step-by-step explanation:
Using the given values, we can write the model for this situation as:
h(t) = -16t^2 + 120t + 50
To determine how long it takes the thrown object to reach maximum height, we need to find the time at which the object reaches its maximum height. The maximum height occurs at the vertex of the parabolic path, which is given by:
t = -b / 2a
where a = -16, b = 120.
Substituting these values, we get:
t = -120 / 2(-16) = 3.75 seconds
Therefore, it takes 3.75 seconds for the thrown object to reach maximum height.
Use the remainder theorem....
Please help!! Will mark branliest
The real and imaginary values of w is 86 and - 0.92i respectively.
What is the real and imaginary values of w
To find w = √(3 - 4i), we can use the following steps:
Step 1: Find the modulus and argument of z = 3 - 4i
The modulus of z is
|z| = √(3² + (-4)²)
= √(9 + 16) = √25
= 5.
The argument of z is arg(z) = arctan(-4/3) ≈ -0.93 radians (or about -53.13 degrees).
Step 2: Find the principal square root of the modulus of z, which is
√|z| = √5.
Step 3: Find the argument of w, which is half of the argument of z, i.e., arg(w) = arg(z)/2
= -0.93/2
≈ -0.465 radians (or about -26.57 degrees).
Step 4: Express w in terms of its real and imaginary parts, using the formula:
w = √|z| * exp(i*arg(w)).
Substituting the values we found above, we get:
w = √5 x exp(i(-0.465))
= √5 x (cos(-0.465) + i*sin(-0.465))
≈ 1.86 - 0.92i
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Which symbol will make this statement true?
|-6| ______ 2
>
<
=
Answer:
The > (Greater Than) symbol
Step-by-step explanation:
The absolute value symbol makes the value inside positive by calculating the inside's distance from 0. -6 is 6 units away from zero.
|-6| = 6, and 6 is greater than 2
This composite figure is created by placing a sector of a circle on a triangle. What is the area of this composite figure? Use 3.14 for π. Round to the nearest hundredth. Show your work.
The area of the composite figure is 96. 522 cm²
How to determine the areaFirst, we need to know that the formula for the area of a triangle is expressed as;
Area = 1/2 × base × height
Now, substitute the values, we have;
Area = 1/2 × 6 × 8
Multiply the values
Area = 1/ 2 × 48
Divide the values
Area = 25 cm²
The area of the sector is represented as;
Area = θ/360 πr²
substitute the values
Area = 82/360 × 3.14 × 10²
Area = 71. 522 cm²
The total area of the figure = 25 + 71. 522 = 96. 522 cm²
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The equation x + (75.3 - x) = 75.3 represents the sum of the measures
of two angles. How many possible combinations of angle measures satisfy
the equation?
Overall, there are infinitely many possible combinations of angle measures that satisfy the equation x + (75.3 - x) = 75.3.
How many possible combinations of angle measures satisfy the equation?It is true that 75.3 = 75.3 when the equation x + (75.3 - x) = 75.3 is reduced to its simplest form. This means that any value of x that falls within the range of possible angle measurements, which is 0 to 75.3 degrees, will satisfy the equation.
As a result, the number of possible combinations of angle measurements that fulfil the equation is unlimited. The particular values of each angle can vary, but each combination will consist of two angles whose measures total up to 75.3 degrees.
For instance, if the sum of the two angles is 75.3 degrees, one conceivable angle combination is 30 degrees and 45.3 degrees. The combination of 60 degrees and 15.3 degrees is another conceivable one.
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There are 4,028 cell phones in a box. 1% of them were broken. 50% of the good phones were sold to another city and the remaining were sold locally. What percent of the phones were sold locally? Round to the nearest one percent.
If 1% of the phones were broken, then the number of good phones is 99% of 4,028:
99/100 x 4,028 = 3,987.72 (rounded to 3,988)
Out of the 3,988 good phones, 50% were sold to another city:
50/100 x 3,988 = 1,994
So, the remaining number of good phones that were sold locally is:
3,988 - 1,994 = 1,994
To find the percentage of phones sold locally, we need to divide the number of phones sold locally by the total number of phones:
1,994 / 4,028 = 0.494
Then, we can convert this decimal to a percentage and round to the nearest one percent:
0.494 x 100 ≈ 49%
Therefore, approximately 49% of the phones were sold locally.
someone pls help (13 points )
Answer:
y = 1x-5
Step-by-step explanation:
See attached worksheet.
We'll look for a line with the form y=mx+b, where m is the slope and y is the y-intercept.
Pick any two points on the line, but pick ones that are clearly on known lines so that the points are more accurate. Pick one at the x=o point, if it can be read clearly. The vaue of y at x=0 is the y-intercept.
Follow the steps in the attachement to find the equation of the line, which is
y=1x-5
the angle of the elevation from a park bench is 778 feet from the base of the getaway arch in St. Louis Missouri is 39 degrees how tall is the getaway arch
By trignometric property, The 630 .18 feet tall is the gateway arch .
What is the definition of trigonometry?
Trigonometry is a discipline of mathematics that examines certain functions of angles and how to use them in computations. A common angle in trigonometry has six different functions. Sine, cosine, tangent, cotangent, secant, and cosecant are their respective names and acronyms (csc).
As given
The angle of elevation from a park bench 778 feet from the base of the Gateway Arch in St. Louis, Missouri is 39 degrees.
Now by using the trignometric property
tanθ = perpendicular/base
As diagram is given below .
θ = 39
tan39° = AB/CB
CB = 778 feet
tan39° = 0.81 (approx)
0.81 = AB/778
AB = 0.81 × 778
AB = 630 .18 feet
Therefore, the 630 .18 feet tall is the gateway arch .
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1. A rectangle is 10cm long and its perimeter is 26 cm. Find the breadth of the rectangle
If a rectangle is 10cm long and its perimeter is 26 cm, then the breadth of the rectangle is 3 cm
Let's assume the breadth of the rectangle to be 'b' cm.
We know that the perimeter of a rectangle is the sum of the lengths of all four sides.
Therefore, the perimeter of the given rectangle = 2(length + breadth)
Given, the length of the rectangle = 10 cm and the perimeter = 26 cm.
So, 2(10 + b) = 26
Simplifying this equation, we get:
20 + 2b = 26
Move 20 to right hand side of the equation
2b = 26 - 20
2b = 6
b = 6/2
b = 3 cm
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The following system of equations is designed to determine concentrations (the c's in g / (m ^ 3) ) in a series of coupled reactors as a function of the amount of mass input to each rector (right hand sides in g / d * ay ):
10c_{1} + 2c_{2} - c_{3} = 27
- 3c_{1} - 6c_{2} + 2c_{3} = - 61. 5
c_{1} + c_{2} + 5c_{3} = - 21. 5
Solve this problem with the Jacobi's iterative method to epsilon_{s} =5\%
After caculating, a) Matrix is given below, b) C₁ = 65460/193,C₂ = 48480/193, C₃ = 64460/193, c)The mass input to reactor 3 is reduced by 40g/day and d) Change of concentration is Δ C₃ = 2950/193
To solve the system of equations, we can use Gaussian elimination or any other suitable method. Here, we will use Gaussian elimination:
Given:
15C₁-2C₂-C₃=4000
-3C₁+18C₂-6C₃=1500
-4C₁-C₂+12C₃=2400
Therefore:
[tex]A=\left[\begin{array}{ccc}15&-3&-1\\-3&18&-6\\-4&-1&12\end{array}\right][/tex][tex]B=\left[\begin{array}{ccc}4000\\1500\\2400\end{array}\right][/tex]
a) The inverse matrix of A would be
[tex]A^-^1\left[\begin{array}{ccc}14/193&37/2895&12/965\\4/193&176/2895&31/965\\5/193&9/965&87/965\end{array}\right][/tex]
b) For solution of [C] = [A^-1][B]
[tex]C=\left[\begin{array}{ccc}C1\\C2\\C3\end{array}\right] =\left[\begin{array}{ccc}14/193&37/2895&12/965\\4/193&176/2895&31/965\\5/193&9/965&87/965\end{array}\right] \\[/tex]
C₁ = 65460/193
C₂ = 48480/193
C₃ = 64460/193
c) For increasing the concentration [C₁] by 10
C₁ = 65460/193 +10
=67390/193
Now again,
[tex]\left[\begin{array}{ccc}15&-3&-1\\-3&18&-6\\-4&-1&12\end{array}\right] \left[\begin{array}{ccc}67390/193\\48480/193\\64460/193\end{array}\right] =\left[\begin{array}{ccc}4150\\1470\\2360\end{array}\right][/tex]
So from the calculation= 2360 -2400= -40
Therefore the mass input to reactor 3 is reduced by 40g/day
d) Now again reducing mass input
[tex]B=\left[\begin{array}{ccc}4000-500\\1500-250\\2400\end{array}\right] = \left[\begin{array}{ccc}3500\\1250\\2400\end{array}\right] \\\\C=\left[\begin{array}{ccc}C1\\C2\\C3\end{array}\right] = \left[\begin{array}{ccc}173530/579\\130640/579\\61510/193\end{array}\right][/tex]
Δ C₃=C₃-C₃’
=64460-61510/193
= 2950/193
Δ C₃ = 2950/193
Therefore that is the change of concentration.
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How many 3 digit numbers can be formed using numerals in the set 3,2,7, and 9 if repetition is not allowed?
There are 24 possible 3 digit numbers that can be formed using numerals 3,2,7 and 9 without repetition.
Since repetition is not allowed, the first digit can only be 3, 2, 7 or 9. Each of the four digits can be chosen in 4 ways.
For the second digit, the choices are now reduced to 3, 2 or 7 (since 9 has already been used). There can be 3 ways to pick the second digit.
For the third digit, the choices are now reduced to 2 or 7 (since 3 and 9 have already been used). There can be 2 ways to pick the third digit.
Therefore, there are 4 x 3 x 2 = 24 possible 3 digit numbers that can be formed using numerals 3,2,7 and 9 without repetition.
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how many rational numbers are there between 0 and 5 explain ur answer in words
Answer:
4 or 5
Step-by-step explanation:
because rational numbers also include natural numbers but natural numbers starts from 1 to eternity
while whole numbers start from 0 and is also included in rational numbers so it might be 5
Can someone please hand a help
The inequality -1/2 ≤ ab ≤ 1/2 implies [tex](ab)^2[/tex] ≤ 1/4, and squaring bοth sides οf the inequality gives us [tex](ab)^2[/tex] ≤ 1/4 as required.
Tο prοve that -1/2 ≤ ab ≤ 1/2 fοr [tex]a^2+b^2 = 1[/tex]and a, b ∈ ℝ, we can start by nοting that:
-1 ≤ a ≤ 1 (because [tex]a^2 \le a^2 + b^2 = 1[/tex], sο -1 ≤ a ≤ 1)
-1 ≤ b ≤ 1 (because [tex]b^2 \le a^2 + b^2 = 1[/tex], sο -1 ≤ b ≤ 1)
Multiplying these inequalities, we get:
-1 ≤ ab ≤ 1
Nοw, we need tο shοw that ab cannοt equal ±1. If ab = 1, then we have:
[tex]a^2 + b^2 = 1[/tex]
[tex]a^2 + 2ab + b^2 = 1 + 2ab[/tex]
[tex](a + b)^2 = 1 + 2ab[/tex]
Since a and b are bοth between -1 and 1, a + b is between -2 and 2, sο [tex](a + b)^2[/tex] is between 0 and 4. Therefοre, we have:
1 + 2ab ≤ 4
Simplifying, we get:
ab ≤ 3/2
This cοntradicts the fact that ab = 1, sο ab cannοt equal 1. Similarly, if ab = -1, we get:
[tex](a + b)^2 = 1 - 2ab[/tex]
Since [tex](a + b)^2[/tex] is nοnnegative, we have:
1 - 2ab ≥ 0
Simplifying, we get:
ab ≤ 1/2
This cοntradicts the fact that ab = -1, sο ab cannοt equal -1. Therefοre, we have -1 < ab < 1, which implies -1/2 ≤ ab ≤ 1/2.
Taking the square οf bοth sides οf -1/2 ≤ ab ≤ 1/2, we get:
[tex]1/4 \le a^2b^2 \le 1/4[/tex]
Adding [tex]a^2 + b^2 = 1[/tex]tο bοth sides, we get:
[tex]5/4 \le 1 + a^2b^2 \le 5/4[/tex]
Dividing by 2, we get:
[tex]5/8 \le (1 + a^2b^2)/2 \le 5/8[/tex]
Since [tex](1 + a^2b^2)/2[/tex] is the average οf [tex]a^2[/tex] and [tex]b^2[/tex], we have:
[tex]5/8 \le (a^2 + b^2)/2 \le 5/8[/tex]
Simplifying, we get:
5/8 ≤ 1/2 ≤ 5/8
Therefοre, the inequality -1/2 ≤ ab ≤ 1/2 implies [tex](ab)^2 \le 1/4[/tex], and squaring bοth sides οf the inequality gives us [tex](ab)^2 \le 1/4[/tex] as required.
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Find a quadratic function with vertex (3 -4) and passes through
the point (0,4).
f(x) = (8/9)(x-3)² - 4 which has a vertex at (3,-4) and passes through the point (0,4).
What is a quadratic equation?
A quadratic equation is a second-degree polynomial equation of the form:
ax² + bx + c = 0
where a, b, and c are constants, and x is the variable. Quadratic equations can have one, two, or zero real solutions, depending on the values of the constants a, b, and c. The solutions can be found using the quadratic formula:
x = (-b ± [tex]\sqrt{b^2 - 4ac}[/tex]) / 2a or by factoring the quadratic expression into two linear factors.
A quadratic function can be expressed in the form:
[tex]$$f(x) = a(x-h)^2 + k$$[/tex]
where (h,k) is the vertex of the parabola.
From the problem, we have the vertex (h,k) = (3,-4). Substituting these values into the equation gives:
[tex]$$f(x) = a(x-3)^2 - 4$$[/tex]
To find the value of a, we use the fact that the function passes through the point (0,4). Substituting x=0 and y=4 into the equation gives:
[tex]$$4 = a(0-3)^2 - 4$$[/tex]
Simplifying and solving for a, we get:
a=8/9
Therefore, the quadratic function is:
f(x) = (8/9)(x-3)² - 4
which has a vertex at (3,-4) and passes through the point (0,4).
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The lines represented by the equations +
the same line
O parallel
neither parallel nor perpendicular
+²1²x=4 and 3x+6y= 12 are
perpendicular
Answer:
on dividing both side of the second eqn by 6 you get
y+1/2x=2
so they are parallel to each other
[
keep in mind that:
any two equations are parallel if they have same coefficient for x and y but different constant values.
]
Answer:
slope(m1)= -coeff.of x/coeff.of y
:.m1= -1/2
slope(m2)= -coeff.of x/coeff.of y
:.m2= -1/2
so it is parallel to each other......
PLS HELP ASAP!
in a circle with radius 7, an angle measuring 5pi/4 radians intercepts an arc. find the length of the arc in simplest form.
The length of the intercepted arc is (35 - 14√2 ) units.
what is length?
Length is a physical quantity that describes the distance between two points. It is typically measured in units such as meters, centimeters, inches, or feet. In mathematics, length can refer to the size of a geometric object,
In the given question,
We know that the length of an arc of a circle is given by the formula L = r*theta, where r is the radius of the circle and theta is the angle in radians subtended by the arc at the center of the circle.
Here, the radius of the circle is 7 units and the angle subtended by the arc is 5π/4 radians. Therefore, the length of the intercepted arc is:
L = 7*(5π/4) = (35π/4) units.
To express the answer in simplest form, we need to rationalize the denominator. Multiplying both the numerator and denominator by 2√2, we get:
L = (35π/4)(2√2/2√2)
= (35*π*√2)/(8) units.
Finally, simplifying this expression, we get:
L = (35 - 14√2) units.
Therefore, the length of the intercepted arc is (35 - 14√2) units
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HELPPPP PLSSSSSSSSSSSSS
like help noww
including the monthly premium, how much money would an indiviall using plan 1 spend for insurance with 2 office visits in a month???
Including the monthly premium the total money spent using plan 1 spend for insurance with 2 office visits in a month is $230.
What is insurance?In a nutshell, insurance is a contract, symbolised by a policy, in which a policyholder receives financial security or compensation from an insurance firm against losses. In order to make payments to the insured more manageable, the firm combines the risks of its clients.
Insurance policies are intended to protect against the possibility of monetary losses, large and little, that may be brought on by harm to the insured or their property or by liability for harm or injury given to a third party.
From the given table we see that the value of the monthly premium for individuals is $170.
Now, the value of office visit is: $30.
There are 2 office visits thus, 2(30) = 60.
The total money spent is:
170 + 60 = 230
Hence, including the monthly premium the total money spent using plan 1 spend for insurance with 2 office visits in a month is $230.
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Write the equation of the line that is PARALLEL to y = -4x + 5 and passes through the point (-2,-1)
Answer: Two parallel lines have the same slope. Therefore, we can use the slope of the given line y = -4x + 5 to find the slope of the line that is parallel to it.
The slope of y = -4x + 5 is -4. Therefore, the slope of any line parallel to it will also be -4.
Now we have the slope of the line and a point that it passes through. We can use point-slope form to write the equation of the line:
y - y1 = m(x - x1)
where m is the slope and (x1, y1) is the point on the line.
Plugging in the values we know, we get:
y - (-1) = -4(x - (-2))
y + 1 = -4(x + 2)
y + 1 = -4x - 8
y = -4x - 9
Therefore, the equation of the line that is parallel to y = -4x + 5 and passes through the point (-2,-1) is y = -4x - 9.
Step-by-step explanation:
A coat that costs $72 is marked up by 22%. What is the new price of coat
Answer:87.84$
Step-by-step explanation:
72------100%
x----------122%
x=122*72/100=87.84$
You purchased a used car for $12,000 and have agreed to pay off
the car in 48 monthly payments of $365 each. What will be the total
sum of your payments?
Answer:
$17,520
Step-by-step explanation:
The total can be found using multiplication.
48 x 365
Use long multiplication to solve this.
After solving, you should get $17,520.
The Lozano's chartered a boat over the holiday weekend. The cost for the day was $350 plus the 6.5% sales tax. They also decided to tip their guide 25% of the original cost of their boat rental. What is the total amount they paid?
Lοzanο's paid a tοtal οf $460.25 fοr the bοat rental, including sales tax and tip.
What are Percentages?In mathematics, percentages are a way οf expressing a number as a fractiοn οf 100. It is οften used tο cοmpare values, represent prοpοrtiοns, and calculate changes οr discοunts.
The cοst οf the bοat rental fοr the day was $350. The sales tax at a rate οf 6.5% is calculated as:
Sales tax = 6.5% οf $350 = 0.065 × $350 = $22.75
Sο the tοtal cοst οf the bοat rental with sales tax is:
Tοtal cοst = $350 + $22.75 = $372.75
The Lοzanο's alsο decided tο tip their guide 25% οf the οriginal cοst οf the bοat rental, which is:
Tip = 25% οf $350 = 0.25 × $350 = $87.50
Therefοre, the tοtal amοunt they paid is:
Tοtal amοunt = Tοtal cοst + Tip = $372.75 + $87.50 = $460.25Sο the Lοzanο's paid a tοtal οf $460.25 fοr the bοat rental, including sales tax and tip.
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Answer: $460.25 for the boat rental, including sales tax and tip.
Step-by-step explanation The cost of the boat rental for the day was $350. The sales tax at a rate of 6.5% is calculated as:
Sales tax = 6.5% of $350 = 0.065 × $350 = $22.75
So the total cost of the boat rental with sales tax is:
Total cost = $350 + $22.75 = $372.75
The Lozano's also decided to tip their guide 25% of the original cost of the boat rental, which is:
Tip = 25% of $350 = 0.25 × $350 = $87.50
Therefore, the total amount they paid is:
Total amount = Total cost + Tip = $372.75 + $87.50 = $460.25
So the Lozano's paid a total of $460.25 for the boat rental, including sales tax and tip.
Please help asap! thanks!
Answer:
it could be either A or D
SLAP ME IF I AM WRONG!
Step-by-step explanation: