Answer:
28
Step-by-step explanation:
i think hope this helps
A negative exponent just means that the base is on the wrong side of the fraction line, so you need to flip the base to the other side.
For example

or

***************************************

The answer is "D"
Answer:
x = ±3√2
or in decimal:
x = ±4.24
Step-by-step explanation:
x² = 18
x = ±√18
= ±√2√9
= ±3√2
Triangle STU is similar to triangle SVW
so
TU ST
------- = ---------- (as you know SV = ST + TV = 12 + 18 = 30)
VW SV
so
TU 12
------- = ----------
40 30
TU = 12 * 40 / 30
TU = 16
answer
16 inches
4:44 pm but I might be wrong.