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3 years ago

The area of a circle is 49π m2. What is the radius?

Mathematics

2 answers:

olga55 [171]3 years ago

5 0

Answer: r= 3.95

Explanation: A=πr2

alina1380 [7]3 years ago

4 0

The answer to this question is 3.59

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What is the cube root of -729a^9 b^6?

Morgarella [4.7K]

Answer:

$-9a^3b^2$

Step-by-step explanation:

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3 years ago

21x-5=7+17x Write it down step by step please

Nat2105 [25]

Answer: x=3

Step-by-step explanation: Step 1: Simplify both sides of the equation.

21x−5=7+17x

21x+−5=7+17x

21x−5=17x+7

Step 2: Subtract 17x from both sides.

21x−5−17x=17x+7−17x

4x−5=7

Step 3: Add 5 to both sides.

4x−5+5=7+5

4x=12

Step 4: Divide both sides by 4.

$\frac{4x}{4}$ = $\frac{12}{4}$

So Final Answer: x=3

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3 years ago

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Ronch [10]

The formulas for conditional probability are:
$P(A\cap B')=P(A)\cdot P(B'|A)$
$P(A\cap B')=P(B')\cdot P(A|B')$ .
Since $P(A\cap B')= \frac{1}{6}$ and $p(B')= \frac{7}{18}$ , you have the equation $\frac{1}{6} = \frac{7}{18} \cdot P(A|B')$ .
Therefore, $P(A|B')= \frac{1}{6} : \frac{7}{18} =\frac{1}{6} \cdot \frac{18}{7} = \frac{3}{7}$ .
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3 years ago

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3 years ago

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hodyreva [135]

The reciprocal is C. 5/8

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3 years ago

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