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Morgarella [4.7K]
2 years ago
14

HURRY IM TIMED PLEASE I WILL GIVE BRAINLIST

Mathematics
2 answers:
Travka [436]2 years ago
6 0
9c + 5ab/ 11c is the simplified answer
Kay [80]2 years ago
6 0

Answer:

When you divide, you find the reciprocal (flip the numerator and denominator) of the number after the division sign and then multiply.

9/11 divided by 5/11

9/11 x 11/5

9/5

1 4/5

The value of a is 1, b is 4, and c is 5.

:)

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Question 1: Mrs. March jogged 10 miles in 110 minutes. If
nekit [7.7K]

Answer:

To find the answer to these questions, you normaly divide the distance by the time, and then you know how long it took and multiply it by the new distance.

Step-by-step explanation:

110/10=11

to jog one mile it took her 11 minutes

5 0
3 years ago
Round $6.6666 to the nearest cent
UNO [17]
$6.67 is 6.6666 rounded to the nearest cent.
7 0
3 years ago
Read 2 more answers
Which number satisfies the inequality? 3/11 &lt; x &lt;sqrt 0.25<br><br>A. 30%<br>B. 7/9​
olya-2409 [2.1K]
Wait what do you mean
4 0
3 years ago
Stereo speakers are manufactured with a probability of 0.100.10 being defective. TwentyTwenty speakers are randomly selected. Le
olga nikolaevna [1]

Answer:

The expected value of X is 2 with a standard deviation of 1.34.

Step-by-step explanation:

For each speaker, there are only two possible outcomes. Either it is defective, or it is not. The probability of a speaker being defective is independent of other speakers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Stereo speakers are manufactured with a probability of 0.1 of being defective

This means that p = 0.1

Twenty speakers are randomly selected.

This means that n = 20

Let the random variable X be defined as the number of defective speakers. Find the expected value and the standard deviation.

E(X) = np = 20*0.1 = 2

\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{20*0.1*0.9} = 1.34

The expected value of X is 2 with a standard deviation of 1.34.

6 0
3 years ago
5 out of 25 girls said that they like pink as their favorite color. If you were to ask 325 girls, how many would say they liked
lesya [120]

Answer:

65 girls

Step-by-step explanation:

325/25=13    13x5=65

7 0
2 years ago
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