Answer:
Choice A
Step-by-step explanation:
1/5 = 9/15
2/3 = 10/15
so 3/5 < 2/3
Please answer this question for me
Hector has to put the fixed point of the compass on points A and C.
Option (C) is correct.
What is the angle bisector of an angle?
The angle bisector of an angle is a line, ray, or segment that divides an angle into two congruent angles. It is a line that bisects (divides into two equal parts) the angle.
For example, if you have a right angle of 90 degrees, the angle bisector would be a line that divides the angle into two 45-degree angles.
In the given figure, Hector is using a compass and straightedge to construct the bisector of angle CEB.
So he has to put the fixed point of the compass on points A and C.
Hence, Hector has to put the fixed point of the compass on points A and C.
Option (C) is correct.
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Elizabeth practices the piano 504 minutes in 2 weeks. Assuming she practices the
same amount every week, how many minutes would she practice in 1 weeks?
Elizabeth will practice piano for 252 minutes in one week by solving function f(x)=504x where x = time in multiple of 2years.
What is a function?
A function is defined as a relation between a set of inputs having one output each. In simple words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and co-domain or range. A function is generally denoted by f(x) where x is the input. The general representation of a function is y = f(x).
There are several types of functions in math. Some important types are:
Injective function or One to one function: When there is mapping for a range for each domain between two sets.
Surjective functions or Onto function: When there is more than one element mapped from domain to range.
Polynomial function: The function which consists of polynomials.
Inverse Functions: The function which can invert another function.
Now,
As given
f(x)=504x where x = time in multiple of 2 years
For 1 year x=1/2
Hence,
y=504*1/2
y=252 minutes
Elizabeth will practice piano for 252 minutes in one week.
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Sine/Cosine of Complementary Angles Solve for x
In a right triangle,sin (8x-9) = cos (x+6) Round to the nearest tenth if nessecary
The value of the variable , x is 10. 33
How to determine the value of the variable
It is important to note that in mathematics, complementary angles are defined as angles that sum up to 90 degrees.
Some properties of complementary angles are;
If the addition of two angles add up to 90 degrees in a right angle, they are called complementary anglesC represents complement and also for the corner of a right angleComplementary angles can be adjacent or non-adjacent anglesFrom the information given, we have the angles as;
8x - 9x + 6Equate the angles to 90 degrees
8x - 9 + x + 6 = 90
collect like terms
8x + x = 90 +3
add the like terms, we get;
9x = 93
Make 'x' the subject of formula by dividing both sides by 9
x = 93/9
x = 10. 33
Hence, the value is 10.33
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For the given data, construct a frequency distribution and frequency histogram of the data using five classes. Describe the shape of the histogram as symmetric, uniform, skewed left, or skewed right. Data set: ages of 20 cars randomly selected in a student parking lot 12 6 4 9 11 1 7 8 98 9 13 5 15 7 6 8 8 21 A. skewed right B. uniform C. symmetric D. skewed left
To construct a frequency distribution and frequency histogram of the data using five classes, we first need to determine the range of the data and the class interval.
The range is the difference between the highest and lowest values in the data set, in this case, 98 - 1 = 97.
We can divide the range by the number of classes to determine the class interval. In this case, 97/5 = 19.4.
We will round up to 20 to have easily divisible numbers.
The class intervals with the frequency would be:
1-20: 3
21-40: 2
41-60: 0
61-80: 3
81-100: 2
Next, we need to create a frequency histogram by plotting the class intervals on the x-axis and the frequencies on the y-axis, and then drawing a bar for each class interval representing the frequency.
The histogram will be skewed right. A histogram is skewed right when the tail of the histogram extends farther to the right than the left. In this case, the majority of the data falls in the lower class intervals, but there are a few outliers on the higher end, which extends the histogram to the right.
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let f be the continuous function defined on [-4, 3] whose graph, consisting of three line segments and a semicircle centered at the origin, is given above. let g be the function given by
The value of g(2) = -1/4 and the value of g(-2) is π/2 - 3/2
Consider function g(x)
[tex]g(x) = \int\limits^x_1 {f(t)} dt[/tex]
Here, function f be the continuous function defined on interval [-4, 3]
The graph of function f is shown below.
It consists of three line segments and a semicircle centered at the origin, is given above.
For x = 2,
g(2)
[tex]=\int\limits^2_1 {f(t)} dt[/tex]
= -(1/2) × 1 × (1/2) .........(From the graph of function f)
= -1/4
For x = -2,
g(-2)
[tex]=\int\limits^{-2}_1 {f(t)} dt\\\\=-\int\limits^{1}_{-2} {f(t)} dt[/tex]
= -(3/2 - π/2) .........(From the graph of function f)
= π/2 - 3/2
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The complete question is:
Let f be the continuous function defined on [-4, 3] whose graph, consisting of three line segments and a semicircle centered at the origin, is given above. Let g be the function given by [tex]g(x) = \int\limits^x_1 {f(t)} dt[/tex]
Frin dthe values of g(2) and g(-2)
Solve for the value of n.
(6n+5)°
(4n-5)°
Step-by-step explanation:
(6n+5)°(4n-5)°
use the method of expand
6n(4n-5)+5(4n-5)
24n²-30n+20n-25
24n²- 10n -25
use middle term/ quadratic formula
n=5/4 (1.25) or n= -5/6 (-0.833333)
Please help me and give me all 3 of the answers i dont need an expalanation or anything just the answers this is due in 25 minutes.
Simplify all:
a) 2/5 : 3/4 = 2/5 × 4/3 = 8/15b) 9/4 : (- 3/4) = - 9/4 × 4/3 = - 9/3 = - 3c) - 5/7 : (- 1/3) = 5/7 × 3 = 15/7 or 2 1/7d) - 5/3 : 1/6 = - 5/3 × 6 = - 10Solve the system of equations: 3 � - � = 17 5 � + 3 � = 5
The solution to the system of equations 3x - y = 17 and 5x + 3y = 5 is (4, -5)
What is an equation?An equation is an expression showing the relationship between numbers and variables.
Given the equations:
3x - y = 17 ; multiplying by 3:
9x - 3y = 51 (1)
5x + 3y = 5 (2)
To solve by elimination method, subtract add 2 to equation 1, hence:
14x = 56
Dividing by 14:
x = 4
Put x = 4 in equation 2:
5(4) + 3y = 5
20 + 3y = 5
3y = -15
y = -5
The solution is (4, -5)
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the late fee for library books is $2.00 plus 15 each day for a book that is late. If Maria's fee for a late book was $3.20, wrote and solve a linear equation to find how many days late the book was
Answer:
8 days
Step-by-step explanation:
I assume you meant $0.15/day late fee (15 cents per day)? If so, the answer is:
x = # of days late
$2.00 + ($0.15/day)x = $3.20
($0.15/day)x = $3.20 - $2.00 = $1.20
x = $1.20/ ($0.15/day) = 8 days
A study was made to males and females about their favorite activities during the weekend.
Therelative frequency for each category is shown in the picture.
a) What is the probability that the person selected will be someone whose response is Sports and who is a woman?
b) What is the probability that the person selected will be someone whose response is TV or who is a man?
c) What is the probability that the person selected will be someone whose response is Sports given that the person is a man?
d) For the people surveyed, are the events of being a person whose response is Sports and being a man independent? Justify your answer.
d) For the people surveyed, are the events of being a person whose response is Sports and being a man independent? Justify your answer.
e) Assume that, in a large population, the probability that a person will respond watching TV is
0.32. If 6 people are selected at random from the population, what is the probability that at least 4 of the people selected will respond watching TV as their favorite activity? Support your answer.
a) The probability of this event is 0.08., b) The probability is 0.3 + 0.6 - 0.06 = 0.84, c) P(Sports | Man) = 0.12 / 0.6 = 0.2
d) For the people surveyed, the events of being a person whose response is Sports and being a man are not independent.
e) The probability that at least 4 of the people selected will respond watching TV as their favorite activity is 1 - 0.2097 = 0.7903
What is the likelihood of the terms given?a) We need to multiply the proportion frequency of women responding with Sports (0.2) by the relative frequency of women to get the likelihood that the individual chosen will be a woman (0.4).
Thus, we obtain: 0.2 * 0.4 = 0.08 Therefore, the likelihood of this occurring is 0.08.
b) We can add the relative frequency of TV for men (0.3) and the relative frequency of men (0.6) and subtract the overlap (the relative frequency of TV for men and men), which is equal to 0.2 * 0.3 = 0.06 to determine the likelihood that the individual chosen would either respond with TV or be a man.
The probability is therefore 0.3 + 0.6 - 0.06 = 0.84
c) Using the algorithm, we can determine the likelihood that the individual chosen will be a guy and that their response to the question will be "Sports." P(Sports and Man) = 0.2 * 0.6 = 0.12 P(A and B) = P(A and B) / P(B) P(Sports and Man) = P(Sports and Man) / P(Man)
P(Sports|Man) = 0.12/0.6=0.2
d) For the respondents, being a man and having selected "Sports" as a response are not separate events. P(Sports and Man) = 0.12 and P(Sports) * P(Man) = 0.2 * 0.6 = 0.12, which are not equivalent, demonstrate this.
e) Using binomial distribution, the probability that at least 4 of the people selected will respond watching TV as their favorite activity is 1 -
P(X < 4) - P(X = 4)
P(X < 4) = (6 C 0) * (0.32)^4 * (0.68)^2
P(X = 4) = (6 C 4) * (0.32)^4 * (0.68)^2
P(X < 4) + P(X = 4) = 0.2097
Therefore the probability that at least 4 of the people selected will respond watching TV as their favorite activity is 1 - 0.2097 = 0.7903
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The notation "f(x)" (f of x) is another way of representing y-values in a function
It represents the output values, hence the claim that "The notation "f(x)" (f of x) is another means of encoding y-values in a function" is accurate.
What is meant by function?An expression that can be used to define and depict the relationship between two or more variables in a data collection is referred to as a function in mathematics.
In conclusion, this means that a function typically illustrates the link between a data set's input values (x-values or domain) and output values (y-values or range), as well as demonstrating how the components in a table are uniquely paired (mapped).
Generally speaking, the output values (y-values or range) of a data set (function) are displayed on the y-coordinate of a graph, and they are typically denoted by either the notation f(x) or y.
The complete question is:
The notation "f(x)" (f of x) is another way of representing y-values in a function. True or False?
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Given the system of equations: 5x + 2y = 3 4x − 8y = 12 Solve for (x, y) using elimination.
To solve the system of equations using elimination, we can follow these steps:
Multiply the first equation by 4, and the second equation by 2:
20x + 8y = 12
8x - 16y = 24
Add the two equations together:
20x + 8y = 12
8x - 16y = 24
28x - 8y = 36
Solve for x by dividing both sides of the equation by 28:
x = 36/28 = 9/7
Substitute the value of x back into one of the original equations:
5x + 2y = 3
5(9/7) + 2y = 3
45/7 + 2y = 3
2y = -42/7
Solve for y by dividing both sides by 2:
y = -21/7
So the solution of the system of equations is (x,y) = (9/7, -21/7)
It is also worth noting that we could have also multiplied the first equation by -2 and the second equation by 5 and added them together, this will also lead us to the same solution.
What is the domain of the function in the graph?
Have to look at photo to answer and I got the answer wrong thinking it was 1
Through the given data points the domain of the function is 1 ≤ n ≤ 5.
What is a function?
In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.
The domain of a function is the complete set of all possible values of independent variable.
The points associated with the graph is (1,15) and (5,11).
The formula for equation is (y - y1) = (y2-y1)/(x2-x1) (x - x1).
(y2-y1)/(x2-x1) = (11 - 15)/(5 - 1)
m = -4/4
m = -1
Now, the equation can be written as -
y - y1 = m(x - x1)
y - 15 = -1(x - 1)
y - 15 = -x + 1
y = -x + 16
From the graph k = -n + 16
The independent variable 'n', taking the values between 1 and 5, in that interval graph is continuous.
Therefore, the domain is 1 ≤ n ≤ 5.
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Which is a counterexample of the conditional? Select all that apply. If a number is divisible by 4, then it is divisible by 8. A. 12 B.32
C.36
D.20
So, only option C is a counterexample of the conditional statement "If a number is divisible by 4, then it is divisible by 8."
A counterexample of a conditional statement is a specific case or example that contradicts the statement or goes against its logical implications.
In this case, the conditional statement is "If a number is divisible by 4, then it is divisible by 8."
Option C, 36, is a counterexample of this conditional statement.
This is because 36 is divisible by 4 (9 x 4 = 36), but it is not divisible by 8 (36 / 8 = 4.5). This contradicts the statement that if a number is divisible by 4, it must also be divisible by 8.
Option A, 12, is not a counterexample of the conditional statement because 12 is divisible by 4 (12 / 4 = 3) and also divisible by 8 (12 / 8 = 1.5).
Option B, 32, is not a counterexample of the conditional statement because 32 is divisible by 4 (32 / 4 = 8) and also divisible by 8 (32 / 8 = 4).
Option D, 20, is not a counterexample of the conditional statement because 20 is not divisible by 4 (20 / 4 = 5)
So, in summary, only option C is a counterexample of the conditional statement "If a number is divisible by 4, then it is divisible by 8."
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Jada spends $74 on a hat, shoes, and shorts. If the hat costs $22 and the shoes cost $33, how much were the shorts? Write and solve an equation. Use an unknown to represent the cost of the shorts.
please help will mark BRAINLIEST
Answer:
110
Step-by-step explanation:
180-70 =110
Find the missing parts of each quadrilateral and name the type of quadrilateral that best describes the figure.
I already know the missing angles, but I'm not sure how to classify these shapes.
The quadrilaterals in a and b have the missing values of x as 85° and 57° respectively and can be best described as a scalene quadrilateral.
What is a scalene quadrilateralA scalene quadrilateral is a four-sided polygon in which all four sides have different lengths and all four angles have different measures. This is also known as an asymmetric quadrilateral.
we shall evaluate for the missing values of x as follows:
x + 109° + 96° + 70° = 360° {sum of interior angles of a quadrilateral}
x + 275° = 360°
x = 360° - 275° {subtract 275° from both sides}
x = 85°
x + 85° + 94° + (180° - 58°) = 360° {sum of interior angles of a quadrilateral}
x + 301 = 360°
x = 360° - 303° {subtract 303° from both sides}
x = 57°
Therefore, the missing values of x for quadrilaterals in a and b are 85° and 57° respectively, and can be best described as a scalene quadrilateral.
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if 3100 people in population of 46785 complain of headaches - and 6.6% complain - how was this answer figured out?
The number of the people with headaches to the nearest whole number is 3100
What is percentage?Percentage can be defined as the number or ratio expressed as fraction of 100.
It is represented using the mathematically sign"%".
Due to this, percentage is a dimensionless number.
it is known to have no unit of measurement.
They are also seen as fractions with 100 as their denominators. It is the relative value of a quantity with 100.
From the information given, we have that;
The total number of people = 46785The percentage with headaches = 6.6%Then,
6.6/100 × 46785
Multiply the values, we get
3087. 81 people
Hence, the value is 3100 people in the nearest whole number.
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12.57 rounded to the nearest tenth of a centimeter
Complete the following tables with values for the functions f _ and h given that: (a) f is an odd function: (b) g is an even function. (c) h = g(f(x)) h(x)
The result is that h(x) = 0 for all x except for x = -2 and x = 2, where h(x) = 6.
f(x) | -2 | -1 | 0 | 1 | 2
-------|----|----|----|----|----
f(x) | 5 | -3 | 0 | -3 | 5
g(x) | -2 | -1 | 0 | 1 | 2
-------|----|----|----|----|----
g(x) | 6 | 0 | 0 | 0 | 6
h(x) | -2 | -1 | 0 | 1 | 2
-------|----|----|----|----|----
h(x) | 6 | 0 | 0 | 0 | 6
h(x) = g(f(x))
For x = -2, h(x) = g(f(-2)) = g(5) = 6
For x = -1, h(x) = g(f(-1)) = g(-3) = 0
For x = 0, h(x) = g(f(0)) = g(0) = 0
For x = 1, h(x) = g(f(1)) = g(-3) = 0
For x = 2, h(x) = g(f(2)) = g(5) = 6
Since f is an odd function and g is an even function, then h(x) = g(f(x)) will be an even function. This means that for any given x, h(x) will always equal 0 or a positive value. For the set of values provided above, the result is that h(x) = 0 for all x except for x = -2 and x = 2, where h(x) = 6.
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Compare the investment below to an investment of the same principal at the same rate compounded annually.
principal: $9,000, annual interest: 4%, interest periods: 2, number of years: 15
Answer:
Step-by-step explanation:
The investment below is compounded semi-annually, while an investment of the same principal at the same rate compounded annually would have interest compounded once per year.
The formula for compound interest is A = P(1 + r/n)^nt where A is the final amount, P is the principal, r is the annual interest rate, n is the number of times the interest is compounded per year and t is the number of years.
In the case of the semi-annual investment:
A = 9000(1 + 0.04/2)^(2*15) = $21,831.62
In the case of the annual investment:
A = 9000(1 + 0.04)^15 = $21,812.30
As we can see, the semi-annual investment yields a slightly larger return than the annual investment, $19.32 more. Compounding interest more frequently results in a larger return due to the interest earning interest.
Lmkkkkkk same question I just don’t know
add and then subtract them m
A nurse prescribes a patient 73 mL of Tylenol3 every 6 hours. Tylenol3 has 17 milligrams of codeine for every 30 mL of Tylenol3. How much Codeine is Ken being prescribed per day?
The amount of codeine that Ken is being prescribed every day, given the Tyelenol 3 being prescribed is 165. 47 milligrams of Codeine
How to find the amount prescribed ?The amount of codeine in 30 ml of Tylenol 3 is:
= ( 17 x 73 ) / 30
= 41. 37 mL of Codeine
The number of 6 hour periods in a day is:
= 24 / 6
= 4
The amount of codeine that Ken is being prescribed a day is therefore:
= 4 x 41. 37
= 165. 47 milligrams of Codeine
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The solutions of a quadratic equation are -4 and 9. What is the standard form of a related quadratic function?
The standard form of a related quadratic function is,
⇒ (x² - 5x - 36)
What is Quadratic equation?An algebraic equation with the second degree of the variable is called an Quadratic equation.
We have to given that;
The solutions of a quadratic equation are -4 and 9.
Let the factors of the quadratic equation are,
⇒ (x - (-4)) (x - 9)
⇒ (x + 4) (x - 9)
⇒ (x² - 9x + 4x - 36)
⇒ (x² - 5x - 36)
Thus, The quadratic function is,
⇒ (x² - 5x - 36)
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50% means___ parts of a total 200
Answer:
Step-by-step explanation:
50% of 200 is =100
Answer ASAP please
1. A manufacturer drills a hole through the center of a metal sphere of radius R. The hole has a radius r. Find the volume of the resulting ring.
2. Use the shell method to write and evaluate the definite integral that represents the volume of the solid generated by revolving the plane region about the x-axis.
[tex]y=\frac{1}{x}[/tex]
The volume of the metal sphere is 4π/3(R^3 - r^3)
The volume of the solid generated is 2π cubic units.
The volume of the metal sphereThe volume of the ring can be found by subtracting the volumes of two spheres with radii R and r:
V = (4/3) * π * (R^3 - r^3)
So, the volume of the ring is given by:
V = (4/3) * π * (R^3 - r^3) cubic units.
Evaluate
V = 4π/3(R^3 - r^3)
The volume of the solid generatedWe have the equation to be
y = 1/x
The volume of the solid is given by the definite integral:
V = 2π ∫[a,b] x * y dx
where a and b are the lower and upper limits of the interval over which we are integrating.
In this case, a = 1 and b = 2, so the volume of the solid is given by:
V = 2π ∫[1,2] x * 1/x dx = 2π ∫[1,2] dx = 2π (x)|[1,2] = 2π (2 - 1) = 2π.
So, the volume is to 2π cubic units.
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Select the equivalent expression to 4^-3/4^-1
The equivalent expression to the 4^-3 / 4^-1 is 4^-2 or it is also equals to 1/16 .
What is Algebraic expression ?
Algebraic expressions are the concept of expressing numbers the usage of letters or alphabets without specifying their real values. The fundamentals of algebra taught us a way to express an unknown price using letters which includes x, y, z, and so on. these letters are referred to as here as variables. An algebraic expression can be a combination of both variables and constants. Any value this is located earlier than and accelerated with the aid of a variable is a coefficient.
Given
expression ,
4^-3 / 4^-1
= 4 ^ (-3-(-1))
= 4^ (-3+1)
= 4^(-2)
= 1/4^2
= 1/16 .
Therefore , The equivalent expression to the 4^-3 / 4^-1 is 4^-2 or it is also equals to 1/16 .
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Let f(t) be the population (in thousands of people) of Math City, as a function the time t (in years), where t = 0 corresponds to the year 2020. In 2020, the population was 34000, and each year the population increases by 3000 people.
(a) Model the population by finding a formula for f(t), using the appropriate choice of a linear, polynomial, power, trigonometric, or exponential function, or a piecewise combination thereof.
(b) Evaluate the expression f(6), and write a sentence explaining what this means.
(c) Solve the equation f(t) = 64, and write a sentence explaining what this means
The f(t) formula is f(t) = 34 + 3t. The expression f(6) = 52; this means that in 2026, the population was 52000 people, and Setting 34 + 3t = 64 leads to t = 10, which means in 2030, the population was 64000 people.
(a) Each year, the population increases by 3000 people; this means that the population is a linear function of time, and its slope is 3 thousand people per year. The population in 2020 was 34000, and so (0, 34) is the vertical intercept, and we have
f (t) = 34 + 3t.
(b) f(6) = 34 + 3×6
f(6) = 34 + 18
f(6) = 52
This means in 2026, the population was 52000 people.
(c) f(t) = 64
34 + 3t = 64
3t = 64 - 34
3t = 30
t = 10
This means in 2030, the population was 64000 people.
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The length of a rectangle is seven more than triple the width.if the perimeter is 126 inches, find the dimension
If the mean time between unscheduled maintenance of LCD displays in a hospital's CT scan facility is 4,000 operating hours, what is the probability of unscheduled maintenance in exactly 5,000 hours?
If the mean time between unscheduled maintenance of LCD displays in a hospital's CT scan facility is 4,000. The probability of unscheduled maintenance in exactly 5,000 hours is:.7135.
How to find the probability?Using this formula to the probability of unscheduled maintenance in exactly 5,000 hours
P ( X < 5000) = 1 - e^(-λx)
Where:
e = exponent
-λ = Operating hour
x = Number of hours
Let plug in the formula
P ( X < 5000) = 1 - e^(-(1/4000) × 5000)
P ( X < 5000) = 1- e^-1.25
P ( X < 5000) = 1 - .2865
P ( X < 5000) = .7135
Therefore the probability is .7135.
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