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andrew11 [14]
3 years ago
6

Can someone please help me?

Mathematics
1 answer:
AleksAgata [21]3 years ago
6 0

Answer:

C

625

Step-by-step explanation:

We must first find the length of the side

So remember that the area of a square is side squared

So to find the length of the side we square root A

Since the perimeter of a square is 4 times the side we end up with 4square root(A)

And the whole thing must equal less than 100

So its C

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If x equals 8-(-2.25) and y equals 6-4.2-(-4.9) what is the value of x-y
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x = 8-(-2.25) = 8+2.25 = 10.25

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Multiple-choice questions each have four possible answers left parenthesis a , b , c , d right (a, b, c, d)​, one of which is co
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A) Since there are four multiple choice questions Which has one correct answer. The probability of choosing a correct answer is

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The probability of choosing wrong answer is

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P(WWC) = P(W) \times P(W) \times P(C) \\ \\ P(WWC) = \frac{3}{4} \times \frac{3}{4} \times \frac{1}{4} \\ \\ P(WWC) = \frac{9}{64}

b) If you guess answers to three of the questions, then the possibilities of getting one correct answer are:

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WWC

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WCW

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CWW
.

P(WWC) = P(W) \times P(W) \times P(C) \\ \\ P(WWC) = \frac{3}{4} \times \frac{3}{4} \times \frac{1}{4} \\ \\ P(WWC) = \frac{9}{64}

P(WCW ) = P(W) \times P( C ) \times P(W) \\ \\ P(WCW) = \frac{3}{4} \times \frac{1}{4} \times \frac{3}{4} \\ \\ P(WCW) = \frac{9}{64}

P(CWW ) = P(W) \times P( C ) \times P(W) \\ \\ P(CWW) = \frac{1}{4} \times \frac{3}{4} \times \frac{3}{4} \\ \\ P(CWW) = \frac{9}{64}

c) The probability of getting one correct answer is either the first one is correct or second is correct or third is correct.

P(One \: Correct)= P(CWW) \: or P(WCW) \: or \: P(WWC) \\ \\ P(One \: Correct)= P(CWW) \: + P(WCW) \: + \: P(WWC) \\ \\ P(One \: Correct)= \frac{9}{64} + \frac{9}{64} + \frac{9}{64}  \\ \\ P(One \: Correct) = \frac{27}{64}
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4 years ago
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