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alexandr402 [8]
3 years ago
6

Find the slope of the passing line through the points (-4,7) and (-9,4)

Mathematics
2 answers:
loris [4]3 years ago
7 0

Answer:

m = 3/5

Step-by-step explanation:

Crazy boy [7]3 years ago
7 0

Answer:

m = 3/5

Step-by-step explanation:

\frac{7-4}{-4-(-9)} = \frac{3}{5}

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population mean =72 and standard deviation =10, what is standard error of distribution of sample means for n=4 and n=25
mixer [17]

Answer:

<u>The standard error of distribution for n = 4 is 5 and for n = 25 is 2.</u>

Step-by-step explanation:

1. Let's review the information given to us for solving the question:

Population mean = 72

Standard deviation  =  10

Sample₁ = 4

Sample₂ = 25

2. For finding the standard error of the mean, we use the following formula:

Standard error = Standard deviation / √Size of the sample

Standard error for Sample₁ = 10/√4

<u>Standard error for Sample₁ = 10/2 = 5</u>

Now, let's find the standard error for Sample₂

Standard error for Sample₂ = 10/√25

<u>Standard error for Sample₂ = 10/5 = 2</u>

4 0
3 years ago
Which numbers are rational? Check all that apply.
Degger [83]
The last three are rational numbers because whole numbers can’t be rational
6 0
3 years ago
Maylin is mailing a package that has the
yarga [219]

Answer:

V=378 inch³

Step-by-step explanation:

The package is in the shape of a cuboid. The volume of a cuboid is given by :

V = lbh

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Area of base = 54 inch²

Height of box, h = 7 in

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V = 54 × 7

V=378 inch³

So, the volume of the package is 378 inch³.

3 0
3 years ago
A quarterback throws an incomplete pass. The height of the football at time t is modeled by the equation h(t) = –16t2 + 40t + 7.
Nostrana [21]
Indicated here when h(t) = 0, we are to find for the time where the football has reached a certain height. 


Then, the values of t would be -0.2 and 2.7.

Since we are to look for the time, it is impossible for us to have an answer that has a negative value. So based from our answer, the solution that we will eliminate is the -0.2 one. Since its value is negative.

So, the correct value would be the 2.7 sec. one.
5 0
3 years ago
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LuckyWell [14K]

Answer:iiii

Step-by-step explanation:iiiii

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