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yan [13]
3 years ago
14

HELPPPPPPPP how do you do this?

Mathematics
1 answer:
V125BC [204]3 years ago
7 0
Solve for y like the top equation:
2y = -4ax + 11
2y/2 = -4ax/2 + 11/2
y = -2ax + 11/2

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The following are the last 7 days adjusted closing stock prices (in $) for Citigroup: 22, 25, 20, 15, 40, 55, 28 A) Compute the
son4ous [18]

Answer:

(A) The 25th percentile is 20.

(B) The mean of the data set is 20 and the median of the data set is 25. The data set is left-skewed.

Step-by-step explanation:

The data set arranged in ascending order is:

S = {15, 20, 22, 25, 28, 40, 55}

(A)

Compute the 25th percentile as follows:

25^{th} \text{Percentile}=[\frac{n+1}{4}]^{th}obs.\\\\=[\frac{7+1}{4}]^{th}obs.\\\\=2^{nd}obs.\\\\=20

Thus, the 25th percentile is 20. This value implies that exactly 25% of the observations are less than 20.

(B)

Compute the sample mean as follows:

\text{Mean}=\frac{22+25+20+15+40+55+28}{7}=\frac{205}{7}=29.29

Compute the median as follows:

For a set with odd number of observations, the median value if the middle value.

The middle value is 25.

Thus, the mean of the data set is 20 and the median of the data set is 25.

The Mean < Median.

This implies that the data set is left-skewed.

4 0
2 years ago
An art exhibit at a local museum features several similarly shaped metal cubes welded together to make a sculpture. The smallest
borishaifa [10]

Answer: Length of other edges will be 7.5 inches, 8 inches, 9 inches, 10.5 inches, 12 inches.

Explanation:

Length of smallest cube = 6 inches

Ratio of similarity to the smallest cube is given as follows:

1) 1.25

So, length of other edge will be

1.25\times 6=7.5\ inches

2) 4:3

So, the length of other edge will be

\frac{4}{3}\times 6=8\ inches

3) 1.5

So, length of other edge will be

1.5\times 6=9\ inches

4) 7:4

So, length of other edge will be

\frac{7}{4}\times 6=10.5\ inches

5) 2

So, length of other edge will be

2\times 6=12\ inches

5 0
3 years ago
Mary will rent a car for the weekend. She can choose one of two plans. The first plan has no initial fee but costs $0.70 per mil
AlexFokin [52]
Mary would have to drive 750 for the plans to be the same.
7 0
3 years ago
Read 2 more answers
Please help me quick !! <br> Will mark whoever is first brainliest.
kvv77 [185]

Answer: C. y = 4x - 1

Step-by-step explanation:

pls mark brainiest!!

5 0
2 years ago
Simplify 8+6 over 7 - 3+1 over 2
sergejj [24]

Answer:

First, let's make an expression!

If you meant a different equation..sorry

\frac{8+6}{7-3} +\frac{1}{2}

Hope this is what you meant!

\frac{14}{4} +\frac{1}{2}\\\frac{7}{2} +\frac{1}{2} \\\frac{8}{2} =4

Hope this helps!

P.S. Stay Safe!

5 0
3 years ago
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