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nikklg [1K]
1 year ago
7

In a school of 330 students, 85 of them are in the drama club, 200 of them are in a sports team and 60 students do drama and spo

rts.
Find the probability that a student chosen at random isn’t in the drama club or in a sports team.
Mathematics
1 answer:
liq [111]1 year ago
7 0
Let's denote students in D = in the drama club , S<span> = in a sports team </span>
<span>P(D) = 85/330 </span>
<span>P(S) = 200/330 </span>
<span>
P(D and S) = 60/300 </span>
<span>
P(D or S) = P(D) + P(S) - P(D and S)  </span><span>= 85/330 + 200/330 - 60/330 = 15/22 </span>
<span>
P(neither D nor S) = 1- 15/22 </span><span>= 7/22</span>
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The side length of the square concrete slab if the area is increased by 25% is 5feet

The formula for calculating the area of a square is expressed as:

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20 = L²

L =√20

If the area is increased  by 25%, new area will be:

An = 20 + (0.25*20)

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An = Ln²

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Ln = 5feet

Hence the side length of the square concrete slab if the area is increased by 25% is 5feet

Learn more here: brainly.com/question/11300671

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katen-ka-za [31]

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Answer:

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Step-by-step explanation:

The image is rendered and attached below.

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