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Inessa05 [86]
3 years ago
14

Convert the fraction to higher terms. Enter the value of the missing numerator. 3/11= /77?

Mathematics
2 answers:
lianna [129]3 years ago
8 0

the answer is 21/77 because you multiplied 11 by 7 to get 77, you multiply 7 by which gives you 21/77
Whitepunk [10]3 years ago
4 0
3/11 = 21/77 because it says 3/11 = ?/77 and 11 x 7 = 77 and to complete the sentence, we need to multiply 3/11 with 7 which will make it 21/77
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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
If a^2 + b^2=c^2 then the triangle is a right triangle.
NARA [144]

Answer:

False

Step-by-step explanation:

Measurements are too long on the A leg and B leg for it to be connected by a 12 in leg.

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Flip equation
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\frac{ - 12x}{12}  =  \frac{y - 107}{12}
ANSWER
\frac{ - 1}{12} y +  \frac{107}{12}
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3 years ago
An artist uses parallelogram-shaped decorative tiles to create a design. One tile is shown.
Masteriza [31]
2.4 in^2 is the area of the triangles and the angle of the rectangle is 7.48 in^2 so the total area is 7.88 in^2
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3 years ago
What is 14 divided by 2/5??
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14 divided by 2/5 is 35.
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