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nadezda [96]
3 years ago
11

How do you know which function is the inner radius and which is the outer radius?

Mathematics
1 answer:
geniusboy [140]3 years ago
8 0

Step-by-step explanation:

Graphing them is the best way to tell (I put one from Desmos in th attachment scribbled on it a little to match our situation). Otherwise you'll just have to know which one is going to be where on the interval given; but that knowledge comes by graphing them a lot anyways.

Also remember to draw your strips/lines from the axis of revolution to the curves. The longer one will represent the outer radius of the volume and the shorter one the inner radius.

So:

  1. Graph the functions.
  2. Draw your strips/lines
  3. Outer is longer, Inner is shorter

Comment with any questions.

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Softa [21]

Answer:

  C) The domain represents the weeks that have passed since Samantha started counting the kittens. The domain is all whole numbers.

Step-by-step explanation:

The problem statement tells you the independent variable w represents weeks that have passed. "Domain" refers to values the independent variable may have, so choices A or B make no sense here.

Time is measured continuously, and fractions of a week are possible. So, the domain could be <em>non-negative real numbers</em>. However, the answer choice D is "<em>all</em> real numbers", which includes negative numbers for which the function makes no sense.

The domain "all whole numbers" includes non-negative integers. It is reasonable to restrict the domain to non-negative integer numbers of weeks, so answer choice C is the best option.

8 0
3 years ago
What is the slope of the line which passes through (−2, 0) and (0, 4)? −2 0 2 Undefined
faust18 [17]

slope is also m

m= Y2-Y1 / X2-X1

X1= -2

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Answer: slope is 2

7 0
2 years ago
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lesya [120]

Answer:

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Step-by-step explanation:

Because 20+3=23. That's because it said in 3 years. Tthen we divide by 2 to find Jim's age. That's because it said that in three years, Allen would be twice as old as Jim.

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alexandr1967 [171]

Answer:

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Step-by-step explanation:

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2 years ago
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Umnica [9.8K]
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