3 years ago

Given the function f(x)= √x+7, find the value of x when f(x)=1

1 answer:

7 0

F(x) = 1, so we make the entire equation equal 1.

1 = sqrt(x) + 7

To make x by itself subtract 7 from both sides

-6 = sqrt(x)

Square both sides to remove sqrt from x.

36 = x

The value of x is 36

You might be interested in

Solve for the unknown value in simplest form 2/4/5 = x/3/10

Katarina [22]

Answer:

x=3/4

Step-by-step explanation:

4 0

3 years ago

Can someone please clearly explain Question 7 and how to work this out?

SVETLANKA909090 [29]

Make x the subject means you need to solve for x

y = ax^2 solve for x

divide both side by a

y/a = ax^2/a

simplify
y/a = x^2
so
x = square root (y/a)

7 0

3 years ago

Which of these equations have no solution? Check all that apply.

Murljashka [212]

Answer:

B and E

Step-by-step explanation:

(26x+2)+2=2(x+3)+1 - solution = 1/8

2x+3(x+5)=5(x-3) - NO SOLUTION

4x+3=x+12 - solution = 3

4 - (2x + 5) = {(-4x - 2) - solution = -1/2

5(x + 4) - X= 4(x + 5) - 1 - NO SOLUTION

3 0

3 years ago

In the mall, 1/15 of the stores sell shoes. there are 180 stores in the mall. how many of the stores sell shoes

nordsb [41]

Take 180 * (1/15) = 12 shoe stores

8 0

3 years ago

A tea‑drinking Canadian friend of yours claims to have a very refined palate. She tells you that she can tell if, in preparing a

wlad13 [49]

Answer:

Step-by-step explanation:

There are 20 ways to select 3 cups from the 6 cups.

This can be calculated using formula nCr

Where,

n = objects

r = sample

Calculating 6C3 using calculator that is 20.

6 0

3 years ago