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2 years ago

Pls help!! ASAP!!!!

Mathematics

1 answer:

Sholpan [36]2 years ago

3 0

Figure A’B’c’d is equal to the measure of angle A

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Bill has to figure out the area of a square yard he knows that one side it of his yard is equal to the length of his garage the

Licemer1 [7]

15 × 15 =225 square yards

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2 years ago

Read 2 more answers

The distribution of the number of transactions performed at a bank each day is approximately normal with mean 478 transactions a

jolli1 [7]

Answer:

e. 0.977

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 478, \sigma = 64$

Which of the following is closest to the proportion of daily transactions greater than 350?

This is 1 subtracted by the pvalue of Z when X = 350. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{350 - 478}{64}$

$Z = -2$

$Z = -2$ has a pvalue of 0.023

1 - 0.023 = 0.977

So the correct answer is:

e. 0.977

6 0

2 years ago

Parabola passes through the points (0,5), (1,4), and (2,5). What function does the graph represent?

AfilCa [17]

Answer:

x^2 - 2x + 5 = 0.

Step-by-step explanation:

The (0, 5) is the point where the parabola passes through the y axis (where x = 0), so we can write the equation as

y = ax^2 + bx + 5 where a and b are constants to be found.

Also, since (1, 4) and (2, 5) are points on the curve, substituting, we have the system:

a(1)^2 + 1b + 5 = 4

a(2)^2 + 2b + 5 = 5

Simplify these 2 equations:

a + b = -1 .................(1)

4a + 2b = 0..................(2)

Multiply the first equation by -2:

-2a - 2b = 2 .................(3)

Add (2) + (3):

2a = 2

a = 1.

Substitute a = 1 into (2):-

4*1 + 2b = 0

2b = -4

b = -2.

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3 years ago

Write a word problem where the answer is 27 ¼.

svetlana [45]

a farmer poured 20 gallons of milk in a huge hole

The next day, he brought 10 more gallons but gave 3 gallons to his animals

Later that day, he brought 1/4 gallon

How much does he have

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2 years ago

If θ is in standard position and -180° < θ <-90°, then θ terminates in Quadrant _____.

Murljashka [212]

The answer is: A
Cause I had this test before and I aced it ;)

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2 years ago