3 years ago

In circle G, r = 3 units. Maria draws a circle with double the area of circle G.

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

4 0

Answer:

The answer 28.27 *2 = 56.54

Step-by-step explanation:

A= πr^2

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Major league baseball salaries averaged $3.26 million with a standard deviation of $1.2 million in a recent year. suppose a samp

Anastaziya [24]

Given:
μ = $3.26 million, averaged salary
σ = $1.2 million, standard deviation
n = 100, sample size.

Let x = random test value
We want to determine P(x>4).

Calculate z-score.
z = (x - μ)/ (σ/√n) = (4 - 3.26)/(1.2/10) = 6.1667

From standard tables,
P(z<6.1667) = 1
The area under the distribution curve = 1.
Therefore
P(z>6.1667) = 1 - P(z<=6.1667) = 1 - 1 = 0

Answer: The probability is 0.

8 0

3 years ago

Given P(A)=0.78P(A)=0.78, P(B)=0.65P(B)=0.65 and P(A\cup B)=0.873P(A∪B)=0.873, find the value of P(A\cap B)P(A∩B), rounding to t

Sever21 [200]

Answer:

$P(A\ n\ B) = 0.557$

Step-by-step explanation:

Given

$P(A) = 0.78$

$P(B) = 0.65$

$P(A\ u\ B) = 0.873$

Required

Determine $P(A\ n\ B)$

From laws of probability, we have:

$P(A\ n\ B) = P(A) + P(B) - P(A\ u\ B)$

Substitute in values

$P(A\ n\ B) = 0.78 + 0.65 - 0.873$

$P(A\ n\ B) = 0.557$

Hence, $P(A\ n\ B)$ <em> is calculated to be 0.557</em>

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2 years ago

ILL GIVE YOU BRAINLIEST!! Which number is rational?

Dmitry [639]

Answer:

sqrt(64)

Step-by-step explanation:

The square root of 64 = 8 and 8 is a rational number

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3 years ago

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Which relationships describe angles 1 and 2?

lozanna [386]

Complementary angles
Adjacent angles

Correct

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2 years ago

There are 18 female students and 16 male students in a class. Which of the following expresses the ratio of female students to m

fiasKO [112]

Hey!

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Solution:

The ratio is FEMALES to MALES.

So its 18/16, 18:16, or 18 to 16.

~Now we need to simplify.

18:16 → 18/2:16/2 → 9:8

*Note* When you have a ratio you need to know which comes first. If you put males to females that incorrect. It has to be correct according to the question.

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Answer:

$\large\boxed{B)~9~to~8}$

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Hope This Helped! Good Luck!

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3 years ago