What is the inverse for this problem?

Answers

Answer 1

Answer: replace f(x) with y:

y = 3x +2

interchange the variables:

x = 3y +2

switch the equation so the Y is on the left side:
3y +2 = x

subtract 2 from each side:
3y = x-2

divide each term by 3 to get y alone:

y = (x-2)/3

replace y with inverse of F(x) which is f^-1(x):

f^-1(x) = -(x-2)/3

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Solve: the quantity 3x minus 15 divided by 2 = 4x

Twenty-one less than a number is seven. What is the number?
3
14.
28
147

Answers

Answer: the answer will be 28

Step-by-step explanation:

First you have to add 21+7 which equals to 28 and that's how I got my answer.

Please mark me brainiiest.

Answer:

Step-by-step explanation:

add 7 + 21

What does 4x+y=5 in finding x and y intercepts?

Answers

Answer: X=5/4 Y=5

Step-by-step explanation:

How do i solve this question.

Answers

try a protractor to solve it

Write the related series for the finite sequence 1.5, 2.7, 3.9, . . ., 8.7? Then find the sum.

Answers

Subtract each terms.

2.7 - 1.5 = 1.2
3.9 - 2.7 = 1.2

From these, we can see that they add 1.2 each time. 8.7 is the last number, so each numbers in the sequence is.

1.5, 2.7, 3.9, 5.1, 6.3, 7.5, 8.7

Add all of these numbers together.

1.5 + 2.7 + 3.9 + 5.1 + 6.3 + 7.5 + 8.7 = 35.7

35.7 is your answer

hope this helps

Answer:35.7

Step-by-step explanation: subtract the numbers

Classify the angle as acute, right, obtuse, or straight.

Answers

Answer:

Step-by-step explanation:

Our eyes tell us that the angle is less than 90 degrees. That's the definition of Acute.

A right angle = 90 degrees.

An obtuse angle is larger than 90 degrees.

A straight angle is a line which = 180 degrees.

If two systems of linear equations have the same solution set (in other words, the two systems are equivalent), then they must have the same number of equations. a. True
b. False

Answers

Answer:

False.

Step-by-step explanation:

Equivalent systems of equations are those that have the same solutions or roots, although they have different numbers of equations. Equivalent systems of equations must have the same number of unknowns.

In other words, two systems of equations are said to be equivalent when they have the same solutions. Equivalent systems of equations do not have to have the same number of equations, although they do have to have the same number of unknowns.

So, the sentence is false.

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Help i have to turn this in 3 min someone????