Answer: the answer is 40 units squared
Step-by-step explanation:
the SA with a rectangular and square base is 2*s²+4*s*h
2*s²= the surface area
4*s*h= sideways (lateral)
s= 2 and h=4
so then plug it into "2*s²+4*s*h" and you get 2*2²+4*2*4
2*2²+4*2*4
2(4)+32
40
She should spend 1 hour working on problems , 3 hour reading , Option B is the right answer.
<h3>What is Margin gain ?</h3>
The gain of the desired effect with respect to the previous gain is called margin gain
The marginal gain from 8:00 am to 9:00 am is
(40-0) = 40 problems
The marginal gain from 9:00 am to 10:00 am is
= 70-40 = 30 problems
The marginal gain from 10:00 am to 11:00 am is
(90-70) = 20 problems
As if she does more than one hour of problem solving her productivity decreases to 30 which is less than 1 hour of reading textbook
Therefore she should not spend more than 1 hour on problem solving.
Therefore Option B is the right answer.
1 hour working on problems , 3 hour reading
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Answer: 6
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
8×3-4×2=16
7(10-3)=14
so 16 is greater
Answer:
Step-by-step explanation:
