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Y_Kistochka [10]
3 years ago
13

what is the greatest place value position where the digits differ? what does that mean if we use it in decimal?

Mathematics
1 answer:
Brums [2.3K]3 years ago
6 0
The Tenths place because it's the first
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To find the cost for a group to enter the museum the ticket seller uses the expression 8a+3c in which a represents the number of
Viefleur [7K]
8(3)+3(5)

24+15

39........the answer is $39
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3 years ago
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Sean and Evan are college roommates who have part-time jobs as servers in restaurants. The distribution of Sean’s weekly income
Sauron [17]

Answer:

d. 0.303

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

In this question:

We want the probability of Sean having a greater income than Evan, which is the probability of the subtraction of Sean's income by Evan's income is greater than 0.

Distribution of the difference between Sean's and Evan's income:

Sean has mean 225, Evan 240. So

\mu = 225 - 240 = -15

Sean's standard deviation is of 25, Evan's of 15. So

\sigma = \sqrt{25^2+15^2} = 29.15

Probability that Sean will have a greater income than Evan in a randomly selected week:

Probability of the subtraction being greater than 0, which is 1 subtracted by the pvalue of Z when X = 0. So

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

Z = \frac{0 - (-15)}{29.15}

Z = 0.51

Z = 0.51 has a pvalue of 0.695

1 - 0.695 = 0.305.

Closest to 0.303, option d.

5 0
3 years ago
Triangles A and B are congruent. Find the perimeter of triangle A. Give your answer to 1 dp. 11cm A 19cm B Not drawn accurately.
ANEK [815]

Answer:

P ≈ 45.51

Step-by-step explanation:

19cm is the hypotenuse (C)

11cm is the opposite (A)

 adjacent (B) missing

formula a² + b² = c²

So we need to find b which is b²= c² - a²

b² = (19)² - (11)² = 240

b  = square root of 240

b = 15.5

P = a+b+a2+b2

P ≈ 45.51

5 0
2 years ago
A+B=10,A+C=11,B+D=4,C-D=13​
tatuchka [14]

Answer:

A = 2

B = 8

C = 9

D = -4

3 0
3 years ago
Help this a test ma'am and sir's
sergiy2304 [10]
What do you need help with?
4 0
3 years ago
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