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avanturin [10]
3 years ago
15

a chimp is taking a multiple-choice test. of course the chimp can't read and is guessing for every question. if there are 4 choi

ces for each question, and there are 84 questions on the test, how many questions can we expect the chimp to answer correctly? (hint: there is a 25% chance that the chimp will guess correctly)​
Mathematics
1 answer:
stealth61 [152]3 years ago
3 0

Answer:

21 because there is a 1/4 chance and there are 84 questions, so 1/4 (25%) of 84 is 21.

Step-by-step explanation:

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Answer:

8

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3 years ago
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The total distance a ball rolls varies directly with the time in seconds. The ball rolls a total distance of 112 centimeters in
Komok [63]

Answer:

25 s

Step-by-step explanation:

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8 0
2 years ago
GEOMETRY! PLEASE SHOW YOUR WORK.
skelet666 [1.2K]

Given:

The base of the given triangle has two part:

Left( left side of the hypotenuse) = 25

Right ( right side of the hypotenuse) = x

The altitude (h) = 60

To find the value of x.

Formula:

By Altitude rule we know that, the altitude of a triangle is mean proportional between the right and left part of the hypotenuse,

\frac{left}{altitude} =\frac{altitude}{right}

Now,

Putting,

left = 25, altitude = 60 and right = x we get,

\frac{25}{60} = \frac{60}{x}

or,  (25)(x)=(60)(60) [ by cross multiplication]

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3 years ago
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The angle would be 135.

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iren [92.7K]

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x = -6

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collect like terms

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subtract like terms

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divide both sides by 5

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6 0
1 year ago
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