Solve -5√x = -15A. x =7B. x = -7C. x = -9D. x = 9

Mathematics

1 answer:

kondor19780726 [428]2 years ago

5 0

-5√x = -15
√x = -15/-5
√x = 3
x = 3&2
x = 9
answer is D. x = 9

You might be interested in

The sum of two numers is 52 . The difference of the two numbers is 38 . What are the two numbers? Write the two numbers separate

Ray Of Light [21]

Let the first number be 'x' and the second number is 'y'

Equation 1: x + y = 52
Equation 2: x - y = 38

Rearranging equation 2 to make either x or y the subject
x = 38 + y

Substituting x = 38 + y into equation 1

x + y = 52
(38+y) + y = 52
38 + 2y = 52
2y = 52 - 38
2y = 14
y = 7

Substitute y = 7 into either equation 1 or equation 2 to find x

x + y = 52
x + 7 = 52
x = 52 - 7
x = 45

x = 45
y = 7

8 0

3 years ago

13-(-6) helpppp meee

german

Answer:

Step-by-step explanation:

Step 1: Solve

13 - (-6)

13 + 6

19

Answer: 19

4 0