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Keith_Richards [23]
2 years ago
9

A tie-dye kit with one T-shirt costs $15. Each additional T-shirt costs $4 more. Choose the explicit formula to represent the si

tuation.
A. an = 11 + 4n
B. an = 4 + 15n
C. an = 19 + 4n
D. an = 15 + 4(n + 1)
Mathematics
2 answers:
melisa1 [442]2 years ago
6 0

Answer:

a

Step-by-step explanation:

i just took the test

vladimir2022 [97]2 years ago
5 0

Answer:

D

Step-by-step explanation:

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The area between z = 1.74 and z = 1.25<br> Round your answer to three decimal places.
balu736 [363]

Answer:

The area between z = 1.74 and z = 1.25 is of 0.065.

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.

The area between two values of Z is given by the subtraction of the pvalue of the larger value by the smaller.

The area between z = 1.74 and z = 1.25.

This is the pvalue of z = 1.74 subtracted by the pvalue of z = 1.25.

z = 1.74 has a pvalue of 0.959

z = 1.25 has a pvalue of 0.894

0.959 - 0.894 = 0.065

The area between z = 1.74 and z = 1.25 is of 0.065.

5 0
3 years ago
How tall should the pile of the swing ride be
kozerog [31]

Answer:

<u>48 \: tall</u>

Riders must be 48” tall to ride.

3 0
3 years ago
Read 2 more answers
A game at the fair involves a wheel with seven sectors. Two of the sectors are red, two of the sectors are purple, two of the se
Zolol [24]

Answer:

Expected value: 3/7

Change landing on purple to -1.5

Step-by-step explanation:

Expected value

=3(1/7) + 1(2/7) + 0(2/7) - 1(2/7) = 3/7

Fair game: Expected value = 0

Change the value of 0 to -1.5

7 0
3 years ago
Whats 3y/2 if y = -2​
r-ruslan [8.4K]

Answer:

-3

Step-by-step explanation:

3(-2)/2

-6/2 = -3

8 0
2 years ago
in rhombus ABCD the measure in inches of AB is 3x+2 and BC is x+12 Find the number of inches in the length of DC
Afina-wow [57]
<h3>Answer: 17 inches</h3>

===============================

Rule: All four sides of a rhombus are the same length

So AB = BC

Use this to solve for x

AB = BC

3x+2 = x+12

3x-x = 12-2

2x = 10

x = 5

If x = 5, then

AB = 3*x+2 = 3*5+2 = 15+2 = 17

and

BC = x+12 = 5+12 = 17

Both sides are 17 as expected, so the proper x value is confirmed.

So DC is also 17 since AB = DC

3 0
3 years ago
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