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Margaret [11]
3 years ago
12

What is the LCM of 51 and 18?

Mathematics
1 answer:
Elden [556K]3 years ago
8 0
306 is the answer for the last
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Find a whole number between 9 4/9 and the square root of 144
postnew [5]
First, we'll want to write out the equation
9 \frac{4}{9} < n < \sqrt{144}

then reduce what we can
9 \frac{4}{9} < n < 12

so this means n can equal any whole number between 9 4/9 & 12, which gives us the options of {10,11}

n = 10 \: or \: 11
7 0
3 years ago
Lisa had a set of 12 toy cars. Then she gave her sister 3 cars. What fraction of Lisa's set did Lisa give to her sister.
Trava [24]
Lisa gave her sister 1/4, or one-fourth of her toy cars. Brainliest would really help!
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3 years ago
Read through the solution below. Then, answer
serg [7]

Answer:

the answer is e=mc^2 I think

6 0
2 years ago
Jessica hit a golf ball 150.75 yards. Kayla hit a golf ball 130.25 yards. How much farther did Jessica hit a golf ball?
Lapatulllka [165]

Answer:

Jessica hit the golf ball 20.50 yards farther than Kayla.

Step-by-step explanation:

150.75 - 130.25 = 20.50 yards

If this answer is correct, please make me Brainliest!

6 0
3 years ago
Read 2 more answers
The distribution of heights for adult men in a certain population is approximately normal with mean 70 inches and standard devia
KengaRu [80]

Answer:

The interval (meassured in Inches) that represent the middle 80% of the heights is [64.88, 75.12]

Step-by-step explanation:

I beleive those options corresponds to another question, i will ignore them. We want to know an interval in which the probability that a height falls there is 0.8.

In such interval, the probability that a value is higher than the right end of the interval is (1-0.8)/2 = 0.1

If X is the distribuition of heights, then we want z such that P(X > z) = 0.1. We will take W, the standarization of X, wth distribution N(0,1)

W = \frac{X-\mu}{\sigma} = \frac{X-70}{4}

The values of the cumulative distribution function of W, denoted by \phi , can be found in the attached file. Lets call y = \frac{z-70}{4} . We have

0.1 = P(X > z) = P(\frac{X-70}{4} > \frac{z-70}{4}) = P(W > y) = 1-\phi(y)

Thus

\phi(y) = 1-0.1 = 0.9

by looking at the table, we find that y = 1.28, therefore

\frac{z-70}{4} = 1.28\\z = 1.28*4+70 = 75.12

The other end of the interval is the symmetrical of 75.12 respect to 70, hence it is 70- (75.12-70) = 64.88.

The interval (meassured in Inches) that represent the middle 80% of the heights is [64.88, 75.12] .

Download pdf
8 0
3 years ago
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