R x 9
multiplication problem, r times 9
could also be 9r
So...the diameter is increasing at a rate if 2cm/minute, therefore the radius (1/2 the diameter) is increasing at half the rate. You will learn how to calculate the rate of change at a specific point in time in calculus.
The variable is b, the coefinet is 1/3
remember
ab-ac=a(b-c)
1/3b-1/3=1/3(b-1)
there, factored
Answer:
99.5
Step-by-step explanation:
398 ÷ 4
Answer:
30.35
Step-by-step explanation:
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