Please can someone help me basic geometry??? I need extra credit for my class

Mathematics

1 answer:

puteri [66]3 years ago

3 0

Answer: I believe the first one is ASA, and the third one is SAS, however for the second one, I think it’s none or ASA

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The radius of a circle is 14cm. Find the radius of the circle whose area is double of the area of circle.

zepelin [54]

Answer:

14√2 cm

Step-by-step explanation:

Area of circle equation:

A = πr²

Let the radius of bigger circle is x.

We have:

π(14²)*2 = πx²

Solve for x:

x² = 2(14²)
x = √2(14²)
x = 14√2 cm

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Marat540 [252]

Answer:

5.4=0.9x

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olganol [36]

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A tennis player makes a successful first serve 51% of the time. If she serves 9 times, what is the probability that she gets exa

aleksley [76]

Answer:

$P(X=3)$

And we can use the probability mas function and we got:

$P(X=3)=(9C3)(0.51)^3 (1-0.51)^{9-3}=0.1542$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=9, p=0.51)$