Mathematics College

Consider function f.
f(x) = square root of 7x – 21
Place the steps for finding f-1(x) in the correct order.

Answers

Answer 1

Answer:

f⁻¹(x) = 1/7x² + 3

Step-by-step explanation:

Givenf(x) = [tex]\sqrt{7x-21}[/tex]To find Inverse of f(x)Solution

Change f(x) → x, and x → y, and solve for y:

x = [tex]\sqrt{7y -21}[/tex]x² = 7y - 217y = x² + 21y = 1/7x² + 3

y = f⁻¹(x)

f⁻¹(x) = 1/7x² + 3

Related Questions

Which of the following values are not in the range of the function f(x)=x2?

Select one:
A. 0
B. -3
C. 14
D. 109

Answers

Answer:

B) -3

Step-by-step explanation:

Prepworks!! :D

1/6 foot = how many inches

please help if you have the right answer

Answers

Answer: 2 inches

Step-by-step explanation:

1 foot=12 inches

1/6=1/6 foot

12/6=2 inches in 1/6 foot

Given that the triangles shown below are similar, what is the value of x?
D
32
40
16
20
H
48
M
P
X
L
A. 20
O
B. 10.7
O
C. 96
O D. 24

Answers

Answer:

the answer is D. 24

Step-by-step explanation:

the smaller triangle is half the size of the bigger triangle so just divide 48 by 2

Answer: D

Why?

Question tells you that both triangles are similar, but the obvious difference is that one is smaller than the other.

As u can see HA = PD
32 = 16
The difference is 2

By dividing the value of HM (which is 48) u can get the answer 24.

Therefore the answer is D

Expand and simplify
3(x + 5) + 2(x + 4)

Answers

3(x+5) + 2(x+4)
3x+15+2x+8
The answer is 5x+23

Answer:

5x + 23

Step-by-step explanation:

3 ( x+5) + 2 ( x+4 )

3x+15+2x+8

3x+2x+8+15

5x+23

which mixed number is equal to 18/8
2 6/9
2 5/8
2 1/4
1 2/8

Answers

Answer: 2 1/4

Step-by-step explanation:

Whats the slope of the line?​

Answers

Answer:

-4,5

Step-by-step explanation:

There are two ways you can figure it out.

One way is to choose any two distinct points (x1,y1) and (x2,y2) on the line then use the slope formula below to find the slope m.

m=y2−y1x2−x1. So your points are (-2,2) and (-2,3)

So you need to find the y and x coordinates-

Should I continue explaining? Or r u good?

Please need help on this one

Answers

If it’s asking for the degrees then the answer is 30, I done that before so..
30 annanamsmsnskksksksksksk

Luis wants to buy Jordans for 75.23. He saves 10.27 per month. Write an equation to solve how many months he'll need to save.

Answers

Answer:

75.23=10.27x

Step-by-step explanation:

x will represent how many months Luis will save and it will equal 75.23. To find the value of x, divide 10.27 on both sides and get x=7.32. That means Luis will need to earn 10.27 for 7.32 months to get Jordans.

Use the following scenario to answer the question below:
You are deciding between two cars with different engines and want the bigger
of the two. One engine displaces 350 cubic inches. The other displaces 5,500
cubic centimeters. How many significant figures do the values in this problem
involve?
A. 4
B. 3
C. 2
D. 1

Answers

Not a answere need points srry

Ron measured his garden to be 12‘ x 8 1/3‘. He plant vegetables in 3/4 of his garden. What is the area of his vegetable garden?

Answers

Answer:

4/4

Step-by-step explanation:

Hope this helped have an amazing day!

can someone show me how to do ones like this two

Answers

Just muiltply them I think by

What’s the answer to this radical functions equation ASAP

Answers

Step-by-step explanation:

√z is defined only when z >= 0

Therefore √x - 1 is defined only when (x - 1) >= 0, x >= 1.

The only graph that shows the domain x >= 1 is graph Y.

I really need some help with this my brain is dead at the moment
What do I write as an answer?

Answers

Answer: I got no clue brother.

Step-by-step explanation: Brother

It should be -2

Hopefully this helps :D

Is it appropriate to fit a simple linear regression model that predicts survival (live or die) of a mouse using the quantitative variable of drug dosage (in milligrams) as a predictor variable?

Answers

Simple linear regression is typically not best for a binary dependent variable (live or die). I think a probit or logit regression is more appropriate if I remember correctly...

35h+25=45h what does h equal

Answers

Answer:

h= 2.5

Step-by-step explanation:

25=10h

25/10=2.5

35h + 25 = 45h
—
h = 2.5

True or false: sometimes, a quadratic expression cannot be factored.

Answers

Answer:

true

Step-by-step explanation:

Solve the proportion. 8/11 = 4/y + 2

Answers

Answer:

[tex]y=-\frac{22}{7}[/tex]

Step-by-step explanation:

can you guys help me pls this is my final :(

Answers

Answer:

look up on math..way:)

Step-by-step explanation:

What is the slope of the line represented by the equation y=X3?
40 Points I need help doing a test !!

Answers

Answer:

B

Step-by-step explanation:

trust

Answer:c) 4/5

Step-by-step explanation:

y= mx+c, here, m is the slope.

In this case, m= 4/5, c= -3

The ratio for 2 batches of recipe

Answers

Answer:

The ratio of that is 2:1

Step-by-step explanation:

Thats all

Use the graph below to find f(-2) =

Answers

f(-2) is when x = -2
On the graph it’s (-2, 2)
Solution: f(-2) = 2

A math club receives a 120 discount on calculators. If each
calculator costs S15 before the discount, how much will the
club spend on 60 calculators after the discount?

Answers

Answer:

$780

Step-by-step explanation:

15x60 = 900   900 - 120 = $780

[IMAGE] please help me with 1, 2, and 3

Answers

Answer:

1. 5n + 10d = 90

2. (18,0)

3. (0,9)

PLEASE I WILL GIVE BRAINlEST ANSWER
"I’m thinking of a number. When I divide my number by four and add seven I get thirteen."


What’s my number? Show your work and explain how you know your answer is correct.

Answers

Answer:

The number is 24

Step-by-step explanation:

This can be written algebraically as:  [tex]\frac{x}{4}+7=13[/tex]

Solve for x, in which the steps are shown below.

Thanks for the question! :)

Is this true or false? 0 < -2 Answer fast pls

Answers

Answer:

False

Explanation:

It's actually 0 > -2

PLZ HELP
Do the ones you know!

Answers

the first one in the top is 180 degrees so 8(15) and 8x15=120 so x on the other side is 60.

PLEASE ANSWER QUICKLY!

Answers

Answer:

once you have a common denominator, you simply add the numerators together and then simplify.

Step-by-step explanation:

Kesha it’s plain to rent a van for a trip to Mt.rainier two of her friends each went to the same type of van from the same car rental company last week

Answers

Answer:

a

Step-by-step explanation:

Expression A: 2x+ 2 Expression B: 1 + 2x + 1 Which statement can be used to show that these expressions are equivalent? A. Each expression includes the term 2x. B. 2x + 2 can be rewritten as 1 + 2x + 1 using the distributive property C. Both expressions involve addition D. The expressions name the same number regardless of the value of x.​

Answers

Answer:

C. Both expressions involves addition.

Step-by-step explanation:

the perimeter of the ussoscales triangle is 48cm calculate the length of BC​

Answers

Answer:

where is the pic............

we need the pic 2 answer your question sir
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