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2 years ago

2.

Mathematics

1 answer:

Lady_Fox [76]2 years ago

3 0

Answer:

Step-by-step explanation:

(-4 - 4)/(6 + 2)= -8/8= -1

y - 4 = -1(x + 2)

y - 4 = -x - 2

y = -x + 2

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A baseball team ordered 12 jerseys. Each jersey costs the same amount. The shipping cost for the jerseys was $3 and the total co

alexandr402 [8]

Answer:

The answer is D if you forgot the 3 between the = sign and the + sign

Step-by-step explanation:

I just did 12 x p + 3 = 99

You have to do this because 12 times the amount of jerseys ordered (p) plus the 3 dollars of extra shipping cost. That equals 99.

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2 years ago

Y = 4x - 1 Simplify and solve when x = 6

jeyben [28]

Answer:

Step-by-step explanation:

6x4 is 24

24-1 is 23

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2 years ago

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Consider a data set containing the following values: 70 65 71 78 89 68 50 75 The mean of the preceding values is 70.75. The devi

Leokris [45]

Answer:

If this is the sample data, the sample variance is 125.07 and the sample standard deviation is 11.18

If this is a population data, the population variance is 109.44 and the population standard deviation is 10.46

Step-by-step explanation:

We are given the following data-set:

70, 65, 71, 78, 89, 68, 50, 75

Deviations from the mean

–0.75, –5.75 , 0.25, 7.25, 18.25, –2.75, –20.75, 4.2

Sample size, n = 8

Sample:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

Sum of squares of differences =

0.5625 + 33.0625 + 0.0625 + 52.5625 + 333.0625 + 7.5625 + 430.5625 + 18.0625 = 875.5

$s = \sqrt{\dfrac{875.5}{7}} = 11.18$

$\text{ Sample variance} = s^2 = 125.07$

Population:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

Sum of squares of differences =

0.5625 + 33.0625 + 0.0625 + 52.5625 + 333.0625 + 7.5625 + 430.5625 + 18.0625 = 875.5

$\sigma = \sqrt{\dfrac{875.5}{8}} = 10.46$

$\text{ Population variance} = \sigma^2 = 109.44$

7 0

2 years ago

HELP PLEASE OR GET YEETED

soldier1979 [14.2K]

Answer:

they never intersect

Step-by-step explanation:

parallel lines are basically two lines that are always the same distance apart and traveling in the same direction at each other.

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2 years ago

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In a fifth-grade class, 3/4 of the students like to go to the movies. Of the students who like to go to the movies, 2/3 of them

eimsori [14]

Answer:

1/2 of the class

give brainliest if it helps

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2 years ago