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lara31 [8.8K]
3 years ago
15

There are 250 students in the junior class. 50 of them will be selected at random to participate in a survey. Determine the samp

le space for the students being chosen.
a) 250p50
b)250c50
c) 50
d) 250
Mathematics
1 answer:
Olenka [21]3 years ago
3 0

A) 250p50, I think I'm not 100% sure
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In the figure below, one side of the right triangle is a diameter of the semicircle.
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Answer:

Option (A)

Step-by-step explanation:

One side of the given triangle is a diameter of the semicircle given.

Measure of the diameter = 10 units

Total area of the semicircle = \frac{1}{2}\pi (r^{2})

                                              = \frac{1}{2}\pi (5)^2

                                              = 39.27 square units

Area of the right triangle = \frac{1}{2}(\text{Base})(\text{Height})

                                         = \frac{1}{2}(6)(8)

                                         = 24 square units

Area of the shaded region = Area of the semicircle - Area of the right triangle

                                            = 39.27 - 24

                                            = 15.27 square units

                                            ≈ 15 square units

Therefore, option (A) will be the answer.

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White raven [17]

Answer:

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Step-by-step explanation:

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1/343


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astraxan [27]

Answer:

The volume of the cone is 942cm^3

Step-by-step explanation:

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We substitute r=10 and h=9 ,  \pi=3.14 to obtain:

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Simplify exponents to get:

V=\frac{3.14*100*9}{3}

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Step-by-step explanation:

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