Mathematics High School

Karen is taking a standardized test. The more questions she answers correctly, the greater her final test score will be.


Which of the variables is independent and which is dependent?

Answers

Answer 1

Answer:

they are bothdependant

Step-by-step explanation: they have to be because her test score depend on the number of answers she gets correct

Related Questions

the total cost to buy uniforms for players on a little league basketball team cna be found using the function y=25.5x+7.25, where x is the number of unifroms bought. If there are at least 5 players but no more than 10 players on the team, what is the domain and range of the function?​

Answers

Answer:

12.43 function step by step explanation

Show f(x)=x^3+e^x has exactly one real root?

Answers

Strategy: We need to do two things here. First, we show that the equation has a solution. Then we will need to show that there cannot be two solutions. We will use the Intermediate Value Theorem for the existence of a solution, and Rolle’s Theorem (or the MVT) for the fact that there is only one. Our strategy will include the idea that for the function f(x) = x3 + ex, this problem is equivalent to saying that the graph of f(x) has only one x-intercept.
Solution: First note that the function f (x) = x3 + ex is differentiable on all of R, since it is the sum of two differentiable functions, a polynomial and the exponential function. Hence it is continuous. Grabbingthetwoinputvaluesx=−1andx=0,weseethatf(−1)=(−1)3+e−1 =−1+1e <0, and f (0) = (0)3 + e0 = 1 > 0. Hence by the Intermediate Value Theorem, we know that there must be a number c ∈ [−1, 0], where f (c) = 0. But this is our solution to the original equation. Hence a solution exists.
So call c our solution to the original equation and suppose there exists another one; Call this one d. Then either d > c or d < c. It really won’t matter for our discussion, so assume d > c. Then f(x) is a continuous function on [c,d] and differentiable on (c,d) (it is differentiable everywhere, actually). By Rolle’s Theorem, there then must exist a point r ∈ (c,d), where f′(r) = 0. However, we have
f′(x) = 3x2 + ex > 0
for all x ∈ R. Thus, like our example in class, there cannot be a point r ∈ (c,d), where f′(r) = 0. So our assumption that there is a second solution to the original equation is incorrect. Thus there is only one real solution to x3 + ex = 0.

What is an equation of the line that passes through the points (-4, -1) and
(6,-1)?

Answers

Answer:

use the formula of two point form according to question

Answer:

y=-5x-1

Step-by-step explanation:

2x squared — 11x + 15
factor as a quadratic equation with an explanation please and thank u. will give brainliest

Answers

Answer:

(2x−5)(x−3)

Step-by-step explanation:

Break the expression into two groups

(2[tex]x^{2}[/tex]-5x) + (-6x+15)

Factor out an x from the first group

x(2x-5)

Factor out -3 from the second group

-3(2x-5)

Factor out the common term and combine

x(2x-5)-3(2x-5)

(2x-5)(x-3)

The weight of an object on Earth is proportional to the weight of the same object on the Moon. For example, a 100-pound object on Earth would weigh about 16 pounds on the Moon. Which equation best represents the linear relationship between x, the weight of an object on Earth, and y, the weight of the same object on the Moon
A xy = 100
B x =0.16y
C y = 0. 16x
D y = 6.25x
PLEASE HELP THIS IS DUE IN 40 MINUTES!​

Answers

Answer:

c, y = 0.16x (16 = 100*0.16)

Step-by-step explanation:

Does anyone know this?

Answers

Answer:

I think the answer is A but I am not for sure

Step-by-step explanation:

Jack, Jenny, and Tony have 18 flowers total. Jack has 5 flowers, and Jenny has 10 flowers. How many flowers does Tony have?

Answers

Answer:

3

Step-by-step explanation:

becuase if jack has 5 flowers and jenny has 10 then 5+10=15 15 to get o 18 is 3 more so 15+3= 18

Answer:

3

Step-by-step explanation:

because there is 18 flowers

Jack has five

Jenny has 10

5+10=15

so u have to add 3 more to be 18

5+10+3=18

Help me out please N thank you

Answers

Answer:

B

Step-by-step explanation:

Since ∠ 1 ≅ ∠ 3 , then they are corresponding angles of the parallel lines c and d.

During basketball practice, Levon attempted 40 free throws every 5 minutes. How many free throws did Levon attempt in 12 minutes.

Answers

Answer:

Levon attempted

96 throws in 12

minutes.

Step-by-step explanation:

1 min= 8 throws

8x12=96 or

10 min= 80 throws  2 min=16 throws

80+16=96

what is the answer is what =

Answers

Answer: 6

Step-by-step explanation:

14-8=6

Answer:

the answer is 6 since it says fewer we'll be using subtraction or the minus sign so 14-8=6

2. C is at (-5.1) & D is at (7.6). Where is the midpoint on segment CD?​

Answers

Answer:

1.25

Step-by-step explanation:

Find the average.

-5.1+7.6=2.5

2.5/2

1.25

What is the constant of proportionality between y and x in the graph?

Answers

Answer:

y=2x

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

the answer is 2 bc if we put the y axis as how many cats in kiki's house and x axis as how many dogs were in kiki's house, we would use this equation y=kx

the k would be our unit rate and y would be our cats, x would be dogs, so we divide y to x meaning 4 divided by 2. the unit rate would be 2.

Can someone tell me the degree of g(x)

The x and y’s are on the chart. Just explain the 1st difference, the 2nd difference and so on...

Please no fake answers that are unrelated to this topic

Answers

Answer:

the degree of g(x) is 3:

[tex]g(x) = {x}^{3} - 4 [/tex]

If 2.2 pounds of a certain grain cost $1.54, how much will 5.7 pounds of the grain cost? A. $4.38
B. $4.79
C. $3.62
D. $3.99

Answers

It's D, you have to divide 1.54$ by 2.2pounds, then you will get the price for 1 pound. And then multiply the price (0,7$) by 5,7 pounds

The cost of 5.7 pounds of the grain is given by the proportion A = $ 3.99

What is Proportion?

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the proportion be represented as A

Now , the value of A is

We can use a proportion to solve this problem. Let "A" be the cost of 5.7 pounds of the grain. Then we can write:

2.2 pounds / $ 1.54 = 5.7 pounds / A

To solve for "A", we can cross-multiply and simplify:

2.2 pounds x A = $ 1.54 x 5.7 pounds

A = ($ 1.54 x 5.7 pounds) / 2.2 pounds

A = $ 3.99

Hence , 5.7 pounds of the grain will cost $ 3.99

To learn more about proportion click :

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Justin is taking a taxicab to pick up his car from the auto shop. The taxi service charges an initial fee of
$5. There is an additional charge of $0.75 for each mile the taxi drives. How much will it cost Justin if the
auto shop is 25 miles away?

Answers

5+.75m= 5+.75(25) = 5+18.75= 23.75


HELPPPP!!!!
4. Mike is making bread for a family reunion. He knows that he needs 5.25 cups of flour per loaf.
A. If mike needs 5 loaves and one smaller half loaf, how much flour will Mike need in all? (6 points)
B. If mike makes a small loaf for himself that is 0.75 times the regular loaf, how much flour will he need? (6 points)

Answers

Answer:

A. 7.87 cups for 5½ loads

B. 3.93 cups for the tiny loaf

Step-by-step explanation:

A. 5.25 divide by 2 = 2.62 (rounded)

5.25 + 2.62 = 7.87

B. 5.25 × 0.75 = 3.93 cups

What is the reflection of K and L and M and N

Answers

K’: (0, 1)

L’: (-3, 1)

M’: (-2, 3)

N’: (-1, 3)

You are reflecting across the x = 2, so the line is vertical on 2 like |. It’s as many points away on each side for the other side. Ex. K is 2 points to the right of x = 2 so then it would be 2 points to the left of x = 2.

Graph f(x) = 4[x] + 5

Answers

Step-by-step explanation:

slope is 4, y-intercept is (0,5)

The graph of function f(x) = 4[x] + 5 described below

The given function is

f(x) = 4[x] + 5

Here [ ]  represents greatest integer function

We know that

The greatest integer function is one that returns an integer that is closer to the provided actual value.

It is also known as the step function.

The biggest integer function returns the nearest integer to the provided number.

As a result, the formula for finding the biggest integer is rather straightforward.

It is denoted by the symbol [x], where x can be any value.

Now plotting the graph of function.

To learn more about function visit:

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!!45 points!! True or false;

A quadratic graph cannot show more than one translation, reflection, stretch or shrink at a time, from the graph of the parent function.

Answers

Answer:

I believe that is true

Step-by-step explanation:

False, a quadratic graph can show more than one translation of the parent function.

Which equation has the same solution as this equation?
x^2-16x+12=0​

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My answer to this question is x = 0

Which exponent is missing for the given expression ?

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the missing exponent is 4

i need help finding the domain of this question ​

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It’s all real numbers

5. Please convert the equation y-5=7(X-6) into slope
intercept form by completing the table below:
What?
y-5=7(x-6)
Why?
Begin at the Beginning!
Distributive Property
Opposite Operation to
Isolate y
Final Answer

Answers

Answer:

Solving the Equation would be: y= 7x-37, Finding the Function would be x= 37 over 7

Step-by-step explanation:

Function:

y-5=7(x-6)

0-5=7(x-6)

0-5=7x-42

-5=7x=42

-7x-5=-42

-7x=-42+5

-7x=-37

x=37 over 7

_________________________________

Solving the Equation:

y-5=7(x-6)

y-5=7x-42

y=7x-42+5

y=7x-37

y=7x-37, x ER

12.) 15 + (-15) + 12

Answers

15-15+12
0+12
12
.........

Answer:

12 + 6 + 15 = 12 + 15 + 6

Hope this helps :D

Step-by-step explanation:

Choose the correct description of the graph of the compound inequality : x - 1 < 12 or 2x > 30.
A. A number line with an open circle on 13, shading to the left, and an open dircle on 15, shading to the right
B. A number line with a closed circle on 13, shading to the left, and a closed circle on 15, shading to the right
C. A number line with an open circle on 13, an open circle on 15, and shading in between
D. A number line with a closed circle on 13, a closed circle on 15, and shading in betwee

Answers

I think it’s d to be honest I also may be wrong.

Imma have to say answer D

Need some help ...please ?

Answers

Answer:

C. Starting from the height 1103ft, you gain 91ft each additional hour of climbling

Step-by-step explanation:

First, you subtract the 0 hour from the first hour (or second by third either or works).

1103-1194=91

Then, you put your answer in word for , which is "Starting from the height 1103ft, you gain 91ft each additional hour of climbling".

Finally go back and check to see if you made any mistakes.

I need help, you will get a lot of points.

Answers

Answer:

what it is

Step-by-step explanation:

The answer is 5/2.

The decimal form of 5/2 is 2.5.

A batch of cookies calls for 3 3/4 cups of flour. Amelia is making two batches of cookies. How many cups of flour will she need?

Answers

Answer:

7 2/4 or 7 1/2

Step-by-step explanation: You can add the 3 3/4 to 3 3/4 or mutlipy 3 3/4 by 2 because you need to find the number of 2 batches.

Draw a line representing the "rise" and a line representing the "run" of the line. State
the slope of the line in simplest form.

Answers

The slope is -4/3.........

Horizontal and parallel lines c and d are cut by transversal p. At the intersection of lines c and p, the uppercase left angle is angle 1 and the uppercase right angle is angle 2. At the intersection of lines d and p, the uppercase right angle is angle 3 and the bottom left angle is angle 4.
Which set of equations is enough information to prove that lines c and d are parallel lines cut by transversal p?

m∠1 = 81° and m∠2 = 99°
m∠3 = 99° and m∠4 = 99°
m∠2 = 99° and m∠4 = 99°
m∠4 = 81° and m∠1 = 81°

Answers

Answer:

the answer is the option C

m∠2 = 99° and m∠4 = 99°

Step-by-step explanation:

edg 2020

Answer:

C

Step-by-step explanation:

m∠2 = 99° and m∠4 = 99°

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