A random sample that has 1000 college students in the United States is surveyed about how much money they spend on books per year, and the mean amount calculated is 1000 college students in the US. Option A is the correct answer.
The sample in this scenario refers to the group of college students who were surveyed about their book spending habits. In this case, the sample size is 1000 college students in the United States.
The purpose of this survey is to estimate the mean amount of money spent on books per year by college students in the US, using the sample mean as an estimate. It is important to note that the sample should be representative of the larger population of college students in the US.
Therefore, option A, "1000 college students in the US," is the correct answer. Option B, "all college students in the US," represents the population, not the sample. Options C and D are not relevant to the given scenario.
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The question is -
A random sample of 1000 college students in the United States is surveyed about how much money they spend on books per year, and the mean amount is calculated. What is the sample?
a. 1000 college students in the US
b. all college students in the US
c. 1000 college students in CA
d. all college students in CA
ft.
2. A slow-moving bug is climbing a 15 ft. pole to reach a critical food source. It manages to climb 3
each day, but at night it slides back down 1 ft. How many days will it take the bug to reach the top and
get the food?
Step-by-step explanation:
a0 = 0 ft (starting on the ground)
a1 = a0 + 3 - 1 = a0 + 2
an = an-1 + 3 - 1 if an-1 +3 < 15
an = an-1 + 3 if an-1 + 3 >= 15
so, we need to find the n, so that
an = an-1 + 2 >= 12
but by looking at the structure, we see that every step just adds 2 ft to the total height.
an = a0 + 2n = 0 + 2n = 2n
2n >= 12
n >= 6
so, with day 6 the bug reaches 12 ft height. in day 7 it gets up to 15 ft and reached its goal.
it will take 7 days for the bug to reach the top and get the food.
A local car dealer has 250 cars on the lot. 30% of the cars are SUVs. How many of the cars are NOT SUVs?
giving extra points
Answer:
175
Step-by-step explanation:
30% of 250 is 75 and 70% of 250 is 175
Answer:
175
Step-by-step explanation:
K = 30%
Y = ???
X = 250
Turn 30% into a decimal then mutiply from 250
Ahab pays 1.15 x 10^3 dollars for one year's tuition ay naylor's university his sister attends north central university and pays 2.8 x 10^3 dollars in tuition for her first year what is the difference in tuition paid by ahab and his sister? answer in scientific notation without units the coefficient may be exact or rounded to 2 decimal places
Difference between the fees of Ahab and his sister is \(2.8*10^{3} -1.15*10^{3}=1.65*10^{3}\)
Review the following subtraction rules and properties:
The subtraction identity property (also known as the zero subtraction rule): Any number minus zero is equal to itself. \((2-0=2)\)The rule of subtraction by one: any number minus one will decrease that number by one. \((5- 1 = 4)\)Rule of subtraction number minus itself: any number minus itself is equal to zero. \((2 - 2 = 0)\)Number minus the number immediately before the Subtraction rule: any number minus the number immediately before it is equal to one. \((3 -2 = 1)\)Inverse operation: reverses the effect of another operation. Subtraction reverses addition. (Because \(3 + 2 = 5\), then \(5 - 2 = 3\) and \(5 - 3 = 2\))Given: Ahab pays dollars for one year's tuition fees and his sister pays dollars fees in tuition for the first year
To find: Difference in tuition fees paid by Ahab and his sister?
Solution:
To find the difference in their fees we have to perform simply normal subtraction
Subtract the fees of his sister from Ahab's fees which is as follows:
\(2.8*10^{3} -1.15*10^{3}=1.65*10^{3}\)
Hence the difference between the fees of Ahab and his sister is \(2.8*10^{3} -1.15*10^{3}=1.65*10^{3}\)
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30 Points, Will mark Brainliest' !
The values in the table represent a linear function.
What is the function rule?
Write the rule in function notation, using the slope-intercept form of a line.
Enter your answer in the box.
F(x)= ____
Answer:
f(x) = 4x - 3Step-by-step explanation:
Given the table of domain and range
Using the points, lets find the slope-intercept form
y = mx + bThe slope
m = (5-1)/(2-1) = 4/1 = 4y-intercept
5 = 4*2 + bb = 5 -8b = -3So the function is
y = 4x - 3orf(x) = 4x - 3Which answer choice describes how the graph of f(x) = x² was
transformed to create the graph of n(x) = x²- 1?
A A vertical shift up
B A horizontal shift to the left
CA vertical shift down
D A horizontal shift to the right
The best answer that describes how the graph of f(x) = x² was transformed to create the graph of h(x) = x² - 1 is Option C; a vertical shift down.
We have that the graph of h(x) = x² - 1 is obtained by taking the graph of f(x) = x² and shifting it downward by 1 unit.
Which can be seen by comparing the equations of f(x) and h(x).
The graph of f(x) = x² is a parabola which opens upward and passes through the point (0,0).
When we subtract 1 from the output of each point on the graph then the entire graph shifts downward by 1 unit.
The shape of the parabola remains the same, but now centered around the point (0,-1).
Therefore, A vertical shift down.
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Does anybody know this ?
Answer:
0, 1, 2, 3, 4
Step-by-step explanation:
Multiply each x value by 1/3 then add 2. Since the numerator is 1, you would multipy by one and divide by the denominator of 3, so you really need to divide each x value by 3 then add 2.
-6:
-6/3 = -2
-2 + 2 = 0
-3:
-3/3 = -1
-1 + 2 = 1
0:
0/3 = 0
0 + 2 = 2
3:
3/3 = 1
1 +2 = 3
6:
6/3 = 2
2 + 2 =4
A manufacturer has a steady annual demand for 15,000 cases of sugar. It costs $10 to store 1 case for 1 year, $30 in set up cost to produce each batch, and $16 to produce each case. Find the number of cases per batch that should be produced to minimize cost.
The number of cases per batch that should be produced to minimize cost is: 300 units
How to find the economic order quantity?The number of cases per batch that should be produced to minimize cost can be found by using the Economic Order Quantity.
The Economic Order Quantity (EOQ) is a calculation performed by a business that represents the ideal order size that allows the business to meet demand without overspending. The inventory manager calculates her EOQ to minimize storage costs and excess inventory.
Thus:
Number of cases per batch = √((2 * Setup costs * annual demand)/ holding costs for the year)
Solving gives:
√((2 * 30 * 15000)/10)
= √90000
= 300 units
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What is a function f of three variables?
The domain of f is the set of all real numbers f(x,y) as (x,y) varies throughout the domain D with three variables.
What is a function?
A unique kind of relation called a function is one in which each input has precisely one output. In other words, the function produces exactly one value for each input value. The graphic above shows a relation rather than a function because one is mapped to two different values. The relation above would turn into a function, though, if one were instead mapped to a single value. Additionally, output values can be equal to input values.
The functions of a point (or vector) in R2 or R3 that have real values will now be looked at. These functions will typically be defined on sets of points in R2, but there will be occasions when we utilise points in R3 and when it is more convenient to think of the points as vectors (or terminal points of vectors).
Each point f(x,y) in D is given a real number f(x,y) according to a real-valued function f defined on a subset D of R2. The domain of f is the set of all real numbers f(x,y) as (x,y) varies throughout the domain D, and the range of f is the greatest set D in R2 on which f is defined.
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For the point (r,θ), r is the _____ from O to P and θ is the _____ counterclockwise from the polar axis to the line segment ¯¯¯¯¯¯¯¯OP.
In the point (r, θ), r signifies the distance from O to P, while θ represents the angle counterclockwise from the polar axis to the line segment ¯¯¯¯¯¯¯¯OP.
For the point (r, θ), r is the distance from O to P, and θ is the angle counterclockwise from the polar axis to the line segment ¯¯¯¯¯¯¯¯OP.
In polar coordinates, a point is represented by its distance (r) from the origin (O) and the angle (θ) it forms with the positive x-axis. The distance (r) denotes the length of the line segment connecting the origin to the point P. It indicates how far the point is from the origin. The angle (θ) represents the rotation or angular position of the line segment ¯¯¯¯¯¯¯¯OP from the polar axis (positive x-axis) in a counterclockwise direction. It determines the direction in which the point is located relative to the polar axis.
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need help asap!! giving brainliest!!
Answer:
45
Step-by-step explanation:
75-30=45
If RQS=30 and RQS+SQT=RQT, which is 75, then you subtract RQS (30) from RQT (75).
What is the answer i need answers now I'm am going to fail
pls explain to
Answer:
Yes, the runners number of strides will fit evenly into the length of the race.
Step-by-step explanation:
The bridge is 138,435 feet. You would divide this to get 46,145 as a whole number.
Answer:
Step-by-step explanation:
You are dividing 138435 by 3.
The quotient would be 46145 with no remainder. So the answer would be yes.
A 2nd way to do this is to see if 183435 is a multiple of 3.
Hope this helps!
Have a great day!
This is for algebra 1
helpppppppppp meeeeeeeeeee 50points
Answer:
1) 48
2)44
Step-by-step explanation:
Answer: 48 44 Are The Correct Answers
Step-by-step explanation:Hope This Helps
A large box will hold 1,000 cubic inches. A small box measures 5 inches by 5 inches by 5 inches. How many smaller boxes will the large box hold?
Answer:
8
Step-by-step explanation:
Given data
Volume of large box= 1000cm^3
Dimension of small box
L=5cm
W=5cm
H=5cm
Volume of small box= 5^3
V=125cm^3
Hence the number of small box that can fill the large box is
=1000/125
=8
4-3
Write a program that prompts the user to input an integer between 0 and 35. The prompt should say Enter an integer between 0 and 35:.
If the number is less than or equal to 9, the program should output the number; otherwise, it should output:
A for 10
B for 11
C for 12
. . .
and Z for 35.
(Hint: For numbers >= 10, calculate the ACSII value for the corresponding letter and convert it to a char using the cast operator, static_cast().)
Here's a sample program in C++ that satisfies your requirements:
```
#include
using namespace std;
int main() {
int num;
cout << "Enter an integer between 0 and 35: ";
cin >> num;
if (num <= 9) {
cout << num << endl;
} else if (num >= 10 && num <= 35) {
char letter = static_cast('A' + num - 10);
cout << letter << endl;
} else {
cout << "Invalid input." << endl;
}
return 0;
}
```
- The program prompts the user to input an integer between 0 and 35 using the `cout` and `cin` statements.
- The `if` statement checks whether the number is less than or equal to 9. If it is, it outputs the number using the `cout` statement.
- The `else if` statement checks whether the number is between 10 and 35 (inclusive). If it is, it calculates the corresponding letter using the ASCII value for 'A' and the given number. The `static_cast` statement converts the calculated value to a character. Finally, the program outputs the letter using the `cout` statement.
- The `else` statement handles the case when the input is outside the range of 0 to 35. It outputs an error message using the `cout` statement.
- The program ends with the `return 0` statement.
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Carol rolled a dice 150 times she rolled a six 29 times use carol's data to estimate the probability of rolling a six with this dice give your answer as a fraction
Answer:
29/150
Step-by-step explanation:
Probability is the number of times a certain value is obtained out of the total number of attempts.
If Carol got 6 29 times out of 150, then the probability of getting a 6 = 29/150.
This can be written as a percent or decimal too = 0.193 = 19.3%
Hope this helps.
Good Luck
HELP PLEASE GIVING BRAINLIEST!!!
Answer:
161
Step-by-step explanation:
100 POINTS + BRAINLIEST! HELP!!!
A skateboard halfpipe is being designed for a competition. The halfpipe will be in the shape of a parabola and will be positioned above the ground such that its focus is 40 ft above the ground. Using the ground as the x-axis, where should the base of the halfpipe be positioned? Which equation best describes the equation of the halfpipe?
(0, 20); y= one over eighty x squared +20
(0, 10); y= one over one hundred twenty squared +10
(0,20); y= one over eighty x squared -20
(0, 10); y= one over one hundred twenty x squared -10
Answer:
(0, 20); y= one over eighty x squared +20
Step-by-step explanation:
Find the absolute maximum and minimum of the function f(x,y)=y√x−y2−x+3y on the domain 0≤x≤9, 0≤y≤8
The absolute maximum of the function f(x,y) = y√(x-y^2)-x+3y on the domain 0≤x≤9, 0≤y≤8 is 2√2, which occurs at the point (2,2).
The absolute minimum of the function is -8, which occurs at the point (0,2).
To find the absolute maximum and minimum of the function f(x,y) = y√(x-y^2)-x+3y on the domain 0≤x≤9, 0≤y≤8, we need to evaluate the function at the critical points and at the boundary of the domain.
The critical points of the function are the points where the partial derivatives with respect to x and y are both zero. Solving these equations, we get:∂f/∂x = -1 + y/(√(x-y^2)) = 0∂f/∂y = √(x-y^2) - 1 + 3 = 0Solving these equations, we get two critical points: (0,2) and (2,2). Evaluating the function at these points, we get:f(0,2) = -8f(2,2) = 2√2Next, we need to evaluate the function at the boundary of the domain. This includes the points (0,y), (9,y), (x,0), and (x,8).
Evaluating the function at these points, we get:f(0,y) = -x+3yf(9,y) = y√(9-y^2)-6f(x,0) = -xf(x,8) = 8√(x-64/9)-x+24Taking the maximum and minimum values of the function at the critical points and on the boundary of the domain, we see that the absolute maximum of the function is 2√2, which occurs at the point (2,2), and the absolute minimum of the function is -8, which occurs at the point (0,2).
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A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side a. Find the area of the signal board, using Heron’s formula.If its perimeter is 180 cm, what will be the area of the signal board?
Answer:
\(900\sqrt{3}\:\mathrm{cm^2}\text{ or }\approx 1,558.85\:\mathrm{cm^2}\)
Step-by-step explanation:
Heron's formula can be used to find the area of any triangle and is given by:
\(A=\sqrt{s(s-a)(s-b)(s-c)}\), where \(a\), \(b\), and \(c\) are three sides of the triangle and \(s\) is the semi-perimeter (\(s=\frac{a+b+c}{2}\)).
By definition, all three sides and angles of an equilateral triangle are equal. Therefore, if the total perimeter is 180 cm, each side must have a length of \(180\div 3=60\text{ cm}\).
The semi-perimeter is therefore:
\(s=\frac{60+60+60}{2}=90\text{ cm}\)
Substitute values into Heron's formula to get:
\(A=\sqrt{90(90-60)(90-60)(90-60)},\\A=\sqrt{90\cdot 30\cdot30\cdot 30},\\A=\sqrt{2,430,000},\\A=\boxed{900\sqrt{3} \:\mathrm{cm^2}}\approx \boxed{1,558.85\:\mathrm{cm^2}}\)
Do these ratios form a proportion?
$274 for 968 employees
$246 for 505 employees
yes or no
Using the net below, find the surface area of the triangular prism.
160 i believe. to find the area of a triangle act like its a square and divide in half. for squares multiply base by height.
take the area of each shape and add it up
What is a similarity transformation in geometry?
A similarity transformation is a rigid movement followed by scaling, so this type of transformation can change the position and size, but not the shape.
In geometry, a similarity transformation is a rigid movement followed by scaling, so this type of transformation can change the position and size, but preserve the shape and angles.
Thus, two or more shapes are similar if they have the same shape and corresponding angles, but their corresponding sides are proportional in length.
This type of transformation is often also referred to as dilation.
The rule of dilatation:
\(D_{k}\) (x,y) = (kx, ky)
with \(D_{k}\) is the coordinate point of the new image and k is the scale factor.
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PLSSS HELP IF YOU TURLY KNOW THISS
c
Step-by-step explanation:
In each spaces is 10 so count from 0 till you get to 55
Complete a paragraph proof for: Given: -4k + 2(5k - 6) = 3k - 36 Prove: k=-8. can someone please help me
The value of k is proved to be -8
How to prove that the value of k is -8?The equation is given as
-4k + 2(5k - 6) = 3k - 36
Open the bracket in the above equation
So, we have
-4k + 10k - 12 = 3k - 36
Collect the like terms in the above equation
So, we have
-4k + 10k - 3k = 12 - 36
Evaluate the like terms in the above equation
So, we have
3k = -24
Divide both sides of the above equation by 3
So, we have
k = -8
Hence, the value of k is proved to be -8
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Find the volume of a sphere that has a radius of 2 yards. Round to the nearest hundredth.
Volume =______cubic yards
It should be 33.49 sorry if I’m a little off!
The following angles are supplementary to each other.
m∠A = (3x + 21)° and m∠B = (6x − 21)°
Determine x.
10
20
36
60
Question 2(Multiple Choice Worth 2 points)
(Polygon Angle Sums MC)
A regular polygon has 12 sides. If one of its angles measures (8h − 30)°, what is the value of h?
h = 10.75
h = 18.75
h = 20.25
h = 22.5
Question 3(Multiple Choice Worth 2 points)
(Pythagorean Theorem and the Coordinate Plane MC)
The locations of student desks are mapped using a coordinate plane where the origin represents the center of the classroom. Maria's desk is located at (6, −1), and Monique's desk is located at (−3, 1). If each unit represents 1 foot, what is the distance from Maria's desk to Monique's desk?
square root of 98 feet
square root of 85 feet
square root of 6 feet
square root of 5 feet
Question 4(Multiple Choice Worth 2 points)
(Angle Relationships LC)
Angles A and B are supplementary. Determine the measure of angle A if the measure of angle B is 115.2°.
244.8°
64.8°
25.2°
11.5°
Question 5(Multiple Choice Worth 2 points)
(Pythagorean Theorem MC)
In a video game, Shar has to build a pen shaped like a right triangle for her animals. If she needs 6 feet of fence for the shortest side and 10 feet of fence for the longest side, how many feet of fencing is needed for the entire animal pen?
8 feet
24 feet
26 feet
28 feet
Question 6(Multiple Choice Worth 2 points)
(Polygon Angle Sums LC)
Find the sum of the interior angles of a 17-sided polygon.
1,530°
2,017°
2,700°
3,060°
Question 7(Multiple Choice Worth 2 points)
(Pythagorean Theorem MC)
One leg of a right triangle is 7 units long, and its hypotenuse is 16 units long. What is the length of the other leg? Round to the nearest whole number.
9 units
10 units
14 units
23 units
Question 8(Multiple Choice Worth 2 points)
(Pythagorean Theorem LC)
Determine which set of side measurements could be used to form a right triangle.
square root of 19 comma square root of 35 comma 54
square root of 15 comma 6 comma square root of 51
5, 8, 30
5, 6, 7
Question 9(Multiple Choice Worth 2 points)
(Angle Relationships MC)
Two angles are complementary to each other. One angle measures 26°, and the other angle measures (10x − 11)°. Determine the value of x.
2.6
5.6
7.5
24.5
Question 10(Multiple Choice Worth 2 points)
(Pythagorean Theorem and the Coordinate Plane MC)
Determine the length of the line segment shown.
line segment from negative 3 comma 10 to 4 comma negative 1
13 units
12 units
7 units
3 units
Question 11(Multiple Choice Worth 2 points)
(Pythagorean Theorem LC)
Determine which set of side measurements could be used to form a triangle.
9, 13, 21
8, 9, 18
3, 18, 21
2, 5, 9
Question 12(Multiple Choice Worth 2 points)
(Pythagorean Theorem and the Coordinate Plane MC)
Determine the distance between the points (−2, −3) and (2, 0).
2 units
4 units
5 units
10 units
Question 13(Multiple Choice Worth 2 points)
(Interior and Exterior Angles LC)
Two angles in triangle PQR are congruent, ∠P and ∠Q; ∠R measures 32.55°. What is the measure of ∠Q?
147.45°
106.25°
73.725°
32.55°
Question 14(Multiple Choice Worth 2 points)
(Interior and Exterior Angles MC)
In triangle EFG, m∠E = 84.3° and m∠F = 36.4°. Determine the measure of the exterior angle to ∠G.
47.9°
59.3°
121.1°
120.7°
Question 15(Multiple Choice Worth 2 points)
(Interior and Exterior Angles MC)
For triangle XYZ, m∠X = (5g + 18)° and the exterior angle to ∠X measures (8g + 32)°. Find the measure of ∠X and its exterior angle.
Interior angle = 68°; exterior angle = 112°
Interior angle = 112°; exterior angle = 68°
Interior angle = 73°; exterior angle = 105°
Interior angle = 105°; exterior angle = 73°
Using the definition of supplementary angles, we can see that x = 60
How to find the value of x?Im just answering the first question.
We know that two angles A and B are supplementary if the sum of their measures is equal to 180°.
Then:
A + B = 180°
In this case, we know taht:
m∠A = (3x + 21)° and m∠B = (6x − 21)°
We can replace that in the equation to get:
3x + 21 + 6x - 21 = 180
Now solve that for x:
9x =180
x = 180/9
x = 60
That is the value of x.
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Identify the x-coordinate for the solution to the system of equations. Solve the system using substitution.
x=4y+5
7x - 2y = 35
Answer:
The x-coordinate is 5.
Step-by-step explanation:
7(4y+5)-2y=35
28y+35-2y=35
26y=0
y=0
x=4(0)+5
x=5
There are 32 levels in Swamp Expedition, a popular video game. Anya beat 24 levels so far. What percent of the video game did Anya beat ?
PLSSSS ANSWER QUICKLY !!!
Answer:
75%
Step-by-step explanation:
shdhahzhhjsjsjsjwjjaaa
Hey does anyone know? I don't Number 1,2, And 3 I forgot to attach a picture So I'm sending it again
1. y=x
y=2x-4
2. y=-1/2x + 5
y=3x-2
3. y-2x=4
y=2x
Answer:
1. y=4 x=4
2. x=2 y=4
3. i dont know
Step-by-step explanation: