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Charra [1.4K]
3 years ago
7

A student determined that the area of the segment of shown above is Asegment = 137.71 ft2. The student's work is shown below. Ev

aluate the student’s answer. Asector = 75.36 ft2 Atriangle = 62.35 ft2 Asegment = Asector + Atriangle Asegment = 137.71 ft2 A. The student’s answer is correct. B. The student did not calculate the area of the sector correctly. C. The student did not calculate the area of the triangle correctly. D. The student did not use the correct formula to calculate the area of the segment.
Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Answer:

D. The student did not use the correct formula to calculate the area of the segment.

Step-by-step explanation:

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Jenn says there are 2 weeks 5 days left in the year. How many days are left in a year
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19 days are left in a year because 1 week=7 days which means 2 weeks=14 days 14 +5=19
4 0
2 years ago
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Suppose that p is the probability that a randomly selected person is left handed. The value (1-p) is the probability that the pe
solmaris [256]

Answer:

a) 1/2

b) 250

Step-by-step explanation:

The start of the question doesn't matter entirely, although is interesting to read. What we are trying to do is find the value for p such that 1000p(1-p) is maximized. Once we have that p, we can easily find the answer to part b.

Finding the value that maximizes 1000p(1-p) is the same as finding the value that maximizes p(1-p), just on a smaller scale. So, we really want to maximize p(1-p). To do this, we will do a trick called completing the square.

p(1-p)=p-p^2=-p^2+p=-(p^2-p)=-(p^2-p+1/4)-(-1/4)=-(p-1/2)^2+1/4.

Because there is a negative sign in front of the big squared term, combined with the fact that a square is always positive, means we need to find the value of p such that the inner part of the square term is equal to 0.

p-1/2=0\\p=1/2.

So, the answer to part a is \boxed{1/2}.

We can then plug 1/2 into the equation for p to find the answer to part b.

1000(1/2)(1-1/2)=1000(1/2)(1/2)=1000*1/4=250.

So, the answer to part b is \boxed{250}.

And we're done!

3 0
2 years ago
Yes :]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
NeTakaya

Answer:

It would be 150 I believe.

Step-by-step explanation:

Hope this helps and good luck!

6 0
3 years ago
What is the ratio the defines pi?
Rufina [12.5K]

Answer:

Step-by-step explanation:

By definition, pi is the ratio of the circumference of a circle to its diameter. In other words, pi equals the circumference divided by the diameter (π = c/d). Conversely, the circumference of a circle is equal to pi times the diameter (c = πd).

5 0
3 years ago
Which properties are necessary to claim that the two prisms are congruent? Check all that apply.
pav-90 [236]

Answer:

1. The volumes are equal.

2. The base areas are equal.

3. The prisms have the same height.

Step-by-step explanation:

I don't see no answered to check all that apply but here is the answers about properties and two prisms

7 0
2 years ago
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