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Llana [10]
3 years ago
10

What’s the missing angle. Brainliest if your correct

Mathematics
1 answer:
stellarik [79]3 years ago
6 0

<u>We are given:</u>

We know that the sum of all interior angles of a Pentagon is 540°

we are given 4 out of the 5 angles

<u>Solving for x:</u>

since the sum of all 5 angles is 540°:

75 + 130 + 135 + x + 90 = 540

x + 430 = 540

x = 540 - 430

x = 110°

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D) Suppose you pick one marble from the bag at random. Find the expected value of its number.
Vaselesa [24]

C) The probability that you pick at least one purple marble is 98%.

<h3><u>Probability</u></h3>

The question is incomplete, since the number of marbles of each color in the bag is missing: 3 blue, 5 green, and 2 purple marbles.

Now, to answer the questions, the following calculations must be done:

  • C) 100 - (2/9x9) = X
  • 100 - 2 = X
  • 98 = X

Learn more about probability in brainly.com/question/27656131

#SPJ1

5 0
2 years ago
I graduated from high school and received $1500 in gifts from family
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Answer

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Step-by-step

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3 0
3 years ago
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Plzplzlpzlpz help due today
Likurg_2 [28]

Answer:

What’s the question

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
There are 12 inches in 1 foot. Jada is working on improving her vertical jump. She records,
guajiro [1.7K]

Answer:

There are <u>72 inches</u> in 6 feet.

Step-by-step explanation:

Given:

There are 12 inches in 1 foot.

Jada is working on improving her vertical jump.

Currently, her standing reach is 6 feet from the ground.

Now, to find the inches in 6 feet.

Let the inches in 6 feet be x.

As given:

In 1 foot there are 12 inches.

<em>So, 1 foot is equivalent to 12 inches.</em>

<em>Thus, 6 feet is equivalent to </em>x<em />

Now, to find using cross multiplication method:

\frac{1}{12} =\frac{6}{x}

<em>By cross multiplying we get:</em>

x=72

So, the inches in 6 feet = 72.

Therefore, there are 72 inches in 6 feet.

3 0
4 years ago
If he is correct, what is the probability that the mean of a sample of 68 computers would differ from the population mean by les
elena-14-01-66 [18.8K]

Complete Question

The quality control manager at a computer manufacturing company believes that the mean life of a computer is 91 months with a standard deviation of 10 months if he is correct. what is the probability that the mean of a sample of 68 computers would differ from the population mean by less than 2.08 months? Round your answer to four decimal places. Answer How to enter your answer Tables Keypad

Answer:

P(-1.72

Step-by-step explanation:

From the question we are told that:

Population mean \mu=91

Sample Mean \=x =2.08

Standard Deviation \sigma=10

Sample size n=68

Generally the Probability that The  sample mean  would differ from the population mean

P(|\=x-\mu|<2.08)

From Table

P(|\=x-\mu|

T Test

Z=\frac{\=x-\mu}{\frac{\sigma}{\sqrt{n} } }

Z=\frac{2.08}{\frac{10}{\sqrt{68} } }

Z=1.72

P(|\=x-\mu|

P(-1.72

Therefore From Table

P(-1.72

5 0
3 years ago
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