9514 1404 393
Answer:
(27, 0); the time it takes to reach the bus stop
Step-by-step explanation:
Since (x, f(x)) represents (time, distance away), the x-intercept will be the time when the distance away is zero. That is, it is the time it takes to reach the bus stop.
The distance decreases by 5 meters for each time increase of 3 minutes, so to decrease the distance by 45 meters takes 9 times 3 = 27 minutes. The x-intercept is (27, 0).
The x-intercept is (27, 0).
What is intercept?The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis.
Given:
Time (in minutes) x Distance (in meters)
0 45
3 40
6 35
9 30
12 25
Now, x-intercept will be the time when the distance is zero.
That is, it is the time it takes to reach the bus stop.
As, in every 3 minutes the distance decrease by 5 units.
so, to decrease the distance by 45 meters it takes 9 * 3 = 27 minutes.
Hence, The x-intercept is (27, 0).
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Now we will calculate the actual probability that all a randomly chosen student has a schedule that excludes music theory. We have found that the probability is given as P=4C38C3 Express your answer as a fraction in simplest form.
The probability that all a randomly chosen student has a schedule that excludes music theory, using the combination formula, is of:
p = 1/14.
What is the combination formula?The number of different combinations of x objects from a set of n elements is obtained with the formula presented as follows, using factorials.
\(C_{n,x} = \frac{n!}{x!(n-x)!}\)
Without simplifying it, the probability that all a randomly chosen student has a schedule that excludes music theory is of:
\(p = \frac{C_{4,3}}{C_{8,3}}\)
The numeric value for each of these combinations is given as follows:
\(C_{4,3} = \frac{4!}{3!1!} = 4\)\(C_{8,3} = \frac{8!}{3!5!} = 56\)Hence the probability is given as follows:
p = 4/56.
The division of 56 by 4 has a quotient of 14, hence the simplified probability is of:
p = 1/14.
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Find the value of (f o g)' at the given value.
To find the value of (f o g)' at a given value, you first need to understand the concept of composite functions and the chain rule of differentiation. Let's break it down step by step.
To find the value of (f o g)' at a given value, you need to evaluate g(x) and f(x), find their derivatives, and use the chain rule to find the derivative of (f o g) at the given value. It is important to understand the concepts of composite functions and the chain rule to be able to solve problems involving these concepts.
What are composite functions? Composite functions are functions that are formed by composing two or more functions. The notation used to denote composite functions is (f o g)(x), which means that the output of function g is used as the input for function f. In other words, we first evaluate g(x), and then use the result as the input for f(x).
What is the chain rule of differentiation? The chain rule of differentiation is a method used to find the derivative of composite functions. It states that if a function is composed of two or more functions, then its derivative can be found by taking the derivative of the outer function and multiplying it by the derivative of the inner function.
To find the value of (f o g)' at a given value, we need to follow these steps:1. Find g(x) and f(x)2. Find g'(x) and f'(x)3. Evaluate g(x) at the given value4. Use the chain rule to find (f o g)' at the given value
step 1: Find g(x) and f(x)Let's say that we have two functions: g(x) = x^2 + 3x + 1 and f(x) = sqrt(x). To find (f o g)(x), we first need to evaluate g(x) and then use the result as the input for f(x). Therefore, (f o g)(x) = f(g(x)) = sqrt(x^2 + 3x + 1)
Step 2: Find g'(x) and f'(x)To find g'(x), we need to take the derivative of g(x) using the power rule and the sum rule. Therefore, g'(x) = 2x + 3To find f'(x), we need to take the derivative of f(x) using the power rule and the chain rule. Therefore, f'(x) = 1/2(x)^(-1/2)
Step 3: Evaluate g(x) at the given valueSuppose we want to find (f o g)' at x = 2. To do this, we need to first evaluate g(x) at x = 2. Therefore, g(2) = 2^2 + 3(2) + 1 = 11
Step 4: Use the chain rule to find (f o g)' at the given value now we can use the chain rule to find (f o g)' at x = 2. Therefore, (f o g)'(2) = f'(g(2)) * g'(2) = 1/2(11)^(-1/2) * (2)(3) = 3/sqrt(11)
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Write an equation in slope-intercept form for the line with -intercept -2 and slope2
.
At Westville High School there are 315 seniors and 389 juniors 65%. of the seniors have parking passes and 42% of the juniors have parking passes. The statistics teacher selects a SRS of 30 seniors and a separate SRS of 30 juniors. Let be the difference in the sample proportions of seniors and juniors that have parking passes. a. What is the shape of the sampling distribution of Why? b. Find the mean of the sampling distribution. c. Calculate and interpret the standard deviation of the sampling distribution. d. What is the probability that the difference in sample proportions (senior - junior) of students with parking passes is greater than ?
(a) Since all values are greater than 10, the sampling distribution is normally distributed.
(b) The mean of the sampling distribution is 0.23.
(c) The standard deviation of the sampling distribution is 0.1288.
(d) The probability that the difference in sample proportions (senior - junior) of students with parking passes is greater than 30% is -0.56.
In the given question, at Westville High School there are 315 seniors and 389 juniors.
65% of the seniors have parking passes and 42% of the juniors have parking passes.
The statistics teacher selects a SRS of 30 seniors and a separate SRS of 30 juniors.
Let be the difference in the sample proportions of seniors and juniors that have parking passes.
(a) We have to find the shape of the sampling distribution.
n1*p1 = 0.65*30 = 19.5 > 10
n1*(1 - p1) = (1 - 0.65)*30 = 10.5 > 10
n2*p2 = 0.42*30 = 12.6 > 10
n2*(1 - p2) = (1 - 0.42)*30 = 17.4 > 10
Since all values are greater than 10, the sampling distribution is normally distributed.
(b) We have to find the mean of the sampling distribution.
Mean = p1 - p2
Mean = 0.65 - 0.42
Mean = 0.23
(c) We have to calculate and interpret the standard deviation of the sampling distribution.
Pooled proportion, P' = (x1 + x2)/(n1 + n2)
P' = (0.65*30 + 0.42*30)/(30 + 30)
P' = 0.535
Standard deviation = √P'(1-P')*(1/n1 + 1/n2)
Standard deviation = √0.535(1- 0.535)*(1/30 + 1/30)
Standard deviation = 0.1288
(d) We have to find the probability that the difference in sample proportions (senior - junior) of students with parking passes is greater than 30%.
The test statistic, z = Mean - delta/√P'(1- P')*(1/n1 + 1/n2)
z = 0.23 - 0.30/0.1288
z = -0.56
The p-value is 0.7118. [Using NORMSDIST(z-value)]
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A baby panda born at a national zoo weighed 8 ounces at birth and reached 75 pounds
at one year
What was the panda's growth rate per month? Per week?
of age.
Here, we need to find the monthly and the weekly growth rate
The monthly growth rate is 99.33 ounces and the weekly growth rate is 22.9 ounces
Weight at birth = 8 ounces
Weight at one year =75 ounces
1 pound = 16 ounces
75 pounds = 1200 ounces
Additional weight after birth = Weight at one year - Weight at birth
= 1200 ounces - 8 ounces
= 1,192 ounces
There are 12 months in a year
Growth rate per month = Additional weight after birth / 12
= 1,192 / 12
= 99.33 ounces per month
There are 52 weeks in a year
Growth rate per week = Additional weight after birth / 52
= 1,192 / 52
= 22.9 ounces per week
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At a large university it is known that 30% of the students live on campus. The director of student life is going to take a random sample of 500 students. Which of the following is most likely to occur?
Using point estimation, the sample proportion falls between 0.2 and 0.4.
What is point estimation?The sample distribution offers details on the point estimator to choose. If the distribution's mean matches the actual value of the population parameter, the estimator is considered to be impartial. As a result, the population percentage p and the sample proportion p ought to be quite similar.
The correct option is C, because the average of 0.2 and 0.4 is 0.3
Complete Question is -At a large university it is known that 30% of the students live on campus. The director of student life is going to take a random sample of 500 students. Which of the following is most likely to occur?
a.) The sample proportion falls between 0.3 and 0.5.
b.) The sample proportion falls between 0.1 and 0.3.
c.) The sample proportion falls between 0.2 and 0.4.
d.) The sample proportion falls between 0.25 and 0.35.
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A triangle has one angle that measures 81° and one that measures 37° what is the measure of the third angle
Answer:
the third angle of the triangle is 62°
62 grad
Step-by-step explanation:
PLEASE HELP ME Right NOW
Answer:13.93
Step-by-step explanation:
The graph below shows the line y=[x]. If the line y=|x|*2 were graphed on the same grid, hc would it compare to the line shown in the graph below.
The graph of the function y = 2|x| is a vertical stretch by a factor of 2 of the parent function y = |x|.
How to identify the transformation?The functions for this problem are defined as follows:
Parent function: y = |x|.Transformed function: y = 2|x|.When a function is multiplied by 2, we have that it is vertically stretched by a factor of 2.
Hence the graph of the function y = 2|x| is a vertical stretch by a factor of 2 of the parent function y = |x|.
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Activity
You have also set up a card game in which a player picks a card from a standard deck of 52 cards. The player wins if these two events occur together: E1, in which the card drawn is a black card, and E2, in which the card drawn is a numbered card, 2 through 10.
Question 1
What is the probability of getting a black card and a numbered card? Calculate the probabilities P(E1) and P(E2) as fractions.
The probability of getting a black card and a numbered card is 9/26.
To calculate the probability of getting a black card (E1), we need to determine the number of black cards in a standard deck of 52 cards.
There are 26 black cards in total, which consist of 13 spades (black) and 13 clubs (black).
Therefore, the probability of drawing a black card (P(E1)) is:
P(E1) = Number of favorable outcomes / Total number of possible outcomes
P(E1) = 26 / 52
Simplifying this fraction, we get:
P(E1) = 1/2
So the probability of drawing a black card is 1/2.
To calculate the probability of drawing a numbered card (E2), we need to determine the number of numbered cards (2 through 10) in a standard deck.
Each suit (spades, hearts, diamonds, clubs) contains one card for each numbered value from 2 to 10, totaling 9 numbered cards per suit.
Therefore, the probability of drawing a numbered card (P(E2)) is:
P(E2) = Number of favorable outcomes / Total number of possible outcomes
P(E2) = 36 / 52
Simplifying this fraction, we get:
P(E2) = 9/13
So the probability of drawing a numbered card is 9/13.
To calculate the probability of both events occurring together (getting a black card and a numbered card), we multiply the individual probabilities:
P(E1 ∩ E2) = P(E1) × P(E2)
P(E1 ∩ E2) = (1/2) × (9/13)
Simplifying this fraction, we get:
P(E1 ∩ E2) = 9/26
Therefore, the probability of getting a black card and a numbered card is 9/26.
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Evaluate the following expression.
6 ^1
Answer:
6 has the exponent of 1, meaning that 6 does not need to be multiplied by it self. So it is simpily six.
What is 1 * 2 * 3 * 4 * 5 all the way to 100?
9.332622e+157 or 93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000
What is Factorial?
The product of all positive integers less than or equal to a given positive integer, indicated by that integer plus an exclamation point, is known as Factorial in mathematics.
The approximate value of 100! is 9.3326215443944E+157.
The number of trailing zeros in 100! is 24.
The number of digits in 100 factorial is 158.
The factorial of 100 is calculated, through its definition, this way:
100! = 100 • 99 • 98 • 97 • 96 … 3 • 2 • 1
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The slope of the line below is 2, use the labeled point to find a point slope equation of the line
(the point is (1,9))
Answer: y-9 = 2(x-1)
Step-by-step explanation:
Given a number n, for each integer i in the range from 1 to n inclusive, print one value per line as follows: • If iis a multiple of both 3 and 5, print FizzBuzz. • If iis a multiple of 3 (but not 5), print Fizz. • If iis a multiple of 5(but not 3), print Buzz. • If i is not a multiple of 3 or 5, print the value ofi. Function Description Complete the function fizzBuzz in the editor below. fizzBuzz has the following parameter(s): int n: upper limit of values to test (inclusive) Returns: NONE Prints: The function must print the appropriate response for each value i in the set {1, 2, ... n}in ascending order, each on a separate line. Constraints • 0
The program is an illustration of loops and conditional statements and the part of the complete program is
n = int(input())
for i in range(1,n+1):
if not(i%3 == 0 or i%5==0):
How to determine the program using the conditions?The program written in Python where comments are used to explain each line is as follows:
#This gets input for n
n = int(input())
#This iterates through n
for i in range(1,n+1):
#If the current number is not a multiple of 3 and 5
if not(i%3 == 0 or i%5==0):
#This prints the number
print(i,end="")
else:
#This prints "Fizz", if the current number is a multiple of 3
if i%3 == 0:
print("Fizz",end="")
#This prints "Buzz", if the current number is a multiple of 5
if i%5==0:
print("Buzz",end="")
#This prints a new line
print()
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Determine the equation (picture).
The line perpendicular to the equation and has the same y-intercept with another is y = - 4 / 3 x + 4.
How to find equation of a line?The equation of a line can be describe as follows:
y = mx + b
where
m = slopeb = y-interceptTherefore, lines that a perpendicular follows the rule below:
m₁m₂ = -1
Hence,
y + 6 = 3 / 4 (x - 2)
y + 6 = 3 / 4 x - 6 / 4
y = 3 / 4 x - 6 / 4 - 6
y = 3 / 4 x - 30 / 4
y = 3 / 4 x - 15 / 2
Hence,
3 / 4 m₂ = -1
m₂ = - 4 / 3
Therefore,
slope of the line is - 4 / 3
Let's find the y-intercept of the second line
4x + 5y -20 = 0
5y = -4x + 20
y = -4 / 5 x + 4
y-intercept = 4
Therefore, the line perpendicular to the equation and has the same y-intercept with another is y = - 4 / 3 x + 4.
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plzzzzz help me i have no clue
Answer: Maybe a
Step-by-step explanation:
I mean it is confusing but still look over it
Answer:
The bottom one looks correct
Step-by-step explanation:
Any number from 1-infinity will make that true
Alex earned $75 mowing lawns. He decided to put $25
into saving and spent $29.99 on a new shirt. He wants
to buy socks for $6.25 per pair. What is the maximum
number of pairs of socks he can buy?
Answer:
Alex can buy "3" socks
Step-by-step explanation:
75- 25 =50
50- 29.99 = 20.01
20.01/ 6.26= 3.02
Since you can't get a portion of a sock you just take the first number (which is 3). Therefore, Alex can only buy three socks.
Petra jogs 4 miles in 36 minutes. At this rate, how long would it take her to jog 11
miles.
Answer:
it would take 99 minutes
Answer:
99 minutes!
Step-by-step explanation:
Please help me with this question❤️
Thanks a lot
If = /4, find the value of each expression. (Round your answers to three decimal places, if necessary.)
sin2() =
sin(^{2} ) =
Answer:
2/4 = 0.5
0.578
Step-by-step explanation:
so sin(π/4) is √2/2 squaring this gets your first answer
second answer is just plug and chug in a calculator
A computer store buys a computer system at a cost of 357.60$. The selling price was first at 596$ , but then the store advertised a 40% markdown on the system. Answer parts a and b.
Answer:
i not know what you need me to help you
Step-by-step explanation:
Brayden is ordering a taxi from an online taxi service. The taxi charges $3.50 just for the pickup and then an additional $1.75 per mile driven. How much would a taxi ride cost if Brayden is riding for 9 miles? How much would a taxi ride cost that is mm miles long?
The total cost of the taxi ride is given by the equation A = $ 19.25
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the total cost of taxi ride be represented as A
Now , the equation will be
The initial cost for the pickup = $ 3.50
The cost of the ride per mile = $ 1.75
The cost for riding 9 miles = 9 x cost of the ride per mile
Substituting the values in the equation , we get
The cost for riding 9 miles = 9 x 1.75 = $ 15.75
So , the total cost of taxi ride A = initial cost for the pickup + cost for riding 9 miles
The total cost of taxi ride A = 3.50 + 15.75
The total cost of taxi ride A = $ 19.25
So , if the ride is m miles long , the cost is A = 3.50 + ( 1.75 )m
Hence , the equation is A = $ 19.25
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Find the sum of the complex numbers.
(3 + 3i) + (8 + 7i)
Answer:
21i² + 45i + 24
Step-by-step explanation:
Answer:
-5-4i
Step-by-step explanation:
In ms. Morales's class the ratio of boys to girls is 3:7. The class sizes at Ms.morales's school range from 22 to 34 students per class. What is the total number of students in Ms. Morales class
The total number of students in Ms. Morales's class is either 20 or 30, depending on the value of x.
Let the ratio of boys to girls in Ms. Morales's class be 3x:7x, where 3x represents the number of boys and 7x represents the number of girls.
The total number of students in the class is equal to the sum of the number of boys and the number of girls, which is 3x + 7x = 10x.
We don't know the value of x, but we do know that the class size is between 22 and 34 students.
Therefore, we can set up an inequality based on the total number of students:
22 ≤ 10x ≤ 34
Dividing all parts of the inequality by 10, we get:
2.2 ≤ x ≤ 3.4
Since x represents a whole number of students, the possible values for x are 3 (if there are 30 students in the class) or 2 (if there are 20 students in the class).
If x = 3, then the total number of students is:
10x = 10(3) = 30
If x = 2, then the total number of students is:
10x = 10(2) = 20
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What’s 123988+81937297+81937192827-29283729?
Answer:
81989970383
Step-by-step explanation:
10. The box plot shows donations in dollars to charity.
Describe the shape of the distribution.
Donations to Charity ($)
20 40 60 80 100 120 140 160 180 200 220
The given shape of the distribution is not symmetric.
Given that, a box plot shows donations in dollars to charity.
We need to describe the shape of the distribution.
Donations to Charity ($) =
20 40 60 80 100 120 140 160 180 200 220
so, as we can see,
The shape of the distribution is not symmetric since the lengths of each box and whisker are not the same. There is an outlier at 220.
Hence, the given shape of the distribution is not symmetric.
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I put the question in the photo but it’s basically a contingency table I just can’t find which like formula to us
a) The probability that exactly one of them will be a girl = 0.3407
b) The probability that at least one of them will like the football = 0.7672
a) If we select three students then the probability that exactly one of them will be a girl
From the attached two way table we can observe that the total number of girls = 22
the total number of boys = 18
and the total number of students = 40
The possible outcomes for selecting 3 students from 40 would be,
⁴⁰C₃
Using combination formula,
⁴⁰C₃ = 40! / (3! × (40 - 3)!)
= 9880
If there is exactly one girl then other two must be boys in the set of 3 selected students.
So, the required probability would be,
P = (²²C₁ × ¹⁸C₂) / ⁴⁰C₃
P = (22 × 153)/9880
P = 0.3407
b) The number of students like the football = 15
and the number of students who don't like the football are 40 - 15 = 25
The probability that at least one of them will like the football would be,
P = (¹⁵C₃ × ²⁵C₀ + ¹⁵C₂ × ²⁵C₁ + ¹⁵C₁ × ²⁵C₂) / ⁴⁰C₃
P = ((455 × 1) + (105 × 25) + (15 × 300)) / 9880
P = 0.7672
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The following figure is made of 2 triangles.
7
А
5
B
4
Find the area of each part of the figure and the whole figure.
The area of each part of the figure is Triangle B = 10 square units and Triangle A = 17.5 square units. The area of the whole figure is 27.5 square units.
What is area?A two-dimensional surface, like the surface of a shape or object, can be measured in terms of area. Usually, it is expressed in square quantities like square metres (m2) or square feet (ft2). By multiplying the length and breadth of a rectangle, or by applying particular formulas for other forms, such as base times height divided by two for a triangle, one can determine the area of a shape.
From the given figure we observe that the base of the slanted figure has true base length of 5 units.
Thus, for triangle B the area is:
Triangle B = 1/2(b)(h)
Triangle B = 1/2(5)(4) = 10 square units.
For triangle A we have:
Triangle A = 1/2(5)(7) = 35/2 = 17.5 square units.
The area of the whole figure is:
A = 10 + 17.5 = 27.5 square units.
Hence, the area of each part of the figure is Triangle B = 10 square units and Triangle A = 17.5 square units. The area of the whole figure is 27.5 square units.
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what 2 demensional shape is the base of this triangular prism?
Answer:
triangle
Step-by-step explanation:
i dont know if there should be picture attached
how can you use pythagora's theorem to solve problems involving right-angled triangles
Using Pythagorean theorem, the length of the ladder is 10ft
What is Pythagorean Theorem?In mathematical terms, if y and z are the lengths of the two shorter sides (also known as the legs) of a right triangle, and x is the length of the hypotenuse, the Pythagorean theorem can be expressed as:
x² = y² + z²
In the questions given, the only one we can use Pythagorean theorem to solve is the one with ladder since it's forms a right-angle triangle.
To calculate the length of the ladder, we can write the formula as;
x² = 8² + 6²
x² = 64 + 36
x² = 100
x = √100
x = 10
The length of the ladder is 10 feet
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There are a total of 950 boxes of shoes at a store. • Half of the boxes contain athletic shoes. • Another 125 boxes contain dress shoes. • Of the remaining boxes of shoes, 4 out of 5 boxes contain sandals. Based on the expression below, how many boxes at the store contain sandals? 4(950 ÷ 2 − 125) ÷ 5
Answer: 355
Step-by-step explanation:
Hope this helps !