Answer: The right answer is 2
Step-by-step explanation:
- Write out the expression
T1; a = 0.3 ------------ (I)
T8; ar^7 = 38.4 ------------ (ii)
Substituting for 'a' in the second equation, we have;
0.3r^7 = 38.4
0.3r^7 = 38.4
Divide both sides by 0.3
r^7 = 38.4/0.3
r^7 = 128
r = (128)^1/7
r = 2
Answer:
Step-by-step explanation:
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D. 24
you can simplify it down to y^3/x^2 then you just plug in x and y.
Surface area = 2 x 2 + 4 x 1/2 x 2 x 5
= 24 square inches
Answer:
Step-by-step explanation: 56
