For what values of x is the expression below defined?
VX + 4 = V1- x

A

Step-by-step explanation:

A square root must be positive or equal to 0

x + 4 ≥ 0

x ≥ -4

1-x > 0

-x > - 1

x < 1

If we unite the two solutions, we have

-4 ≤ x < 1

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|