D = 0.5t(3.5t − 21.25)
1 answer:
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The original area of a face would be a^2. Now that you added b to the edge, the new area of each face would be (a+b)^2. To find how much the are increased, subtract a^2 from (a+b)^2. So the answer is b(2a+b)
Answer:
The correct answer is "(18, 30) minutes".
Step-by-step explanation:
Mean,
= 24
Standard deviation,
= 2
The range of minutes where 99.7% of individuals completed the quiz will be:
=
On substituting the values, we get
=
=
now,
=
=
Or,
=
=
i.e., 18 to 30 minutes
8.9% is equal to 0.089 because a percent is over a 100. So, you can just multiply the ROI by the investment to get:
Your answer is: $712.
Your answer is: $712.