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Ainat [17]
3 years ago
13

PLEASEEEEEE HELLLPPPPP!!!!!!!

Mathematics
2 answers:
Alborosie3 years ago
4 0
I’m pretty sure it’s A
Marta_Voda [28]3 years ago
3 0
The right answer to that would be A
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What is the probability of drawing an even numbered card, keeping it, and then drawing another even numbered card from a stack o
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Answer: 1/4

Step-by-step explanation:

In a stack of 24, the 2 mediums are odd and even cards in this question. This means that 1/2 the cards are even and 1/2 are odd. To get a even card once is a 1/2 chance, then to get it again is 1/2 x 1/2 chance or 1/4 chance. This is what I think.

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Explain what the acronym PEMDAS means and how you use it when evaluating expressions.​
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3 years ago
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The radii of two circles are in the ratio of 3 to 1. Find the area of the smaller circle if the area of the larger circle is 27
Naddik [55]
ANSWER
3\pi sq.\: in.

EXPLANATION

Let R be the radius of the bigger circle and r, be the radius of the smaller circle.

Then their ratio is given as,

R:r=3:1

We can rewrite it as fractions to get,

\frac{R}{r} = \frac{3}{1}

We make R the subject to get,

R = 3r

The area of the bigger circle can be found using the formula,

Area=\pi {r}^{2}

This implies that,

Area=\pi ({3r})^{2}

Area=9\pi {r}^{2}

But it was given in the question that, the area of the bigger circle is 27π.

27\pi=9\pi {r}^{2}

We divide through by 9π to get,

3 = {r}^{2}

This means that,
r = \sqrt{3}

The area of the smaller circle is therefore

= \pi {( \sqrt{3}) }^{2}

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3 years ago
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Answer:

5/6=10/12. 2/4=6/12. 5/12

5/12. 2/4. 5/6

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3 years ago
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