Find the unit completion rate:
217 problems
--------------------- = 14.47 problems per minute, or approx 14 problems/min.
15 minutes
According to the situation described, the appropriate set of hypotheses for her significance test is given by:
.
.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if the proportion is still of 42%, that is:
.
At the alternative hypothesis, it is tested if the proportion is now lower, that is:
.
Hence, the the appropriate set of hypotheses for her significance test is given by:
.
.
More can be learned about an hypothesis test at brainly.com/question/26454209
<h3>Question asks, "Find the surface area of a <em>cylinder</em>."</h3>
Answer is: D. 352 pi ✅
<h3>Why is that the case? Let's see.</h3>
When finding surface area, multiply two times pi times the radius times the height.

Now, you need to split these four values into an actual equation.
<em>2 followed by pi radius-height plus two pi radius, is actually the formula for surface added to the formula of area, so;</em>

Solve.
<em>the result is 1105</em> <em>according to order of operations.</em>
<em />
Divide 1105 by pi to get the answer. Pi is 3.14... so for every 3.14..., you count that as one.
<em>which rounds to 352</em>
<em />
Therefore, your answer is 352π units²
The answer is c.
The distance from the centre of the circle to any point on the circumference of the circle is called the radius.
Answer:
B. $ 74.75
Step-by-step explanation:
the computer costs $299.
dividing it by 4 to find the share of each room mate we get 299/4= $75.74