Plsss help I can mark you brainliest

The answer is B.

Step-by-step explanation:

12 ≤ r + 22

r + 22 ≥ 12

r + 22 − 22 ≥ 12 − 22

r ≥ −10

I hope this helps you :D

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1