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3 years ago

Which expression is equivalent to 8(2x + 4)?

Mathematics

1 answer:

Elina [12.6K]3 years ago

6 0

The answer would be A.
If you distribute 8 to 2x and 4, you’ll get 16x+32.

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What is the equation of the line that passes through (-1, 5) and (3, -7)?

enyata [817]

Answer:

$3x + y = 2$

Step-by-step explanation:

$y - y_1 = \dfrac{y_2 - y_1}{x_2 - x_1}(x - x_1)$

$y - 5 = \dfrac{-7 - 5}{3 - (-1)}(x - (-1))$

$y - 5 = \dfrac{-12}{4}(x + 1)$

$y - 5 = -3(x + 1)$

$y - 5 = -3x - 3$

$3x + y = 2$

3 0

3 years ago

I WILL MARK BRAINLIST <br> HELP ASAP ITS DUE

fomenos

Answer:

Since 1 in : 4 yd i just multiply 12 by 4 so I get 48 so 48 square yards is your answer

6 0

3 years ago

What answer exercise 7b

Effectus [21]

Answer:

the first box0.463..

the 2nd box 0.000566

the 3rd box0

the 4th box invalid operation

5 0

3 years ago

If a multiple regression analysis is based on 10 independent variables collected from a sample of 125 observations, what is the

Anuta_ua [19.1K]

Answer: 114

Step-by-step explanation:

The value of the denominator in the calculation of the multiple standard error "MSSE' of estimate is given by "n-k-1 " , where n= Total observations , k = total independent variables such that $MSSE=\dfrac{SSE}{n-k-1}$

Given : A multiple regression analysis is based on 10 independent variables collected from a sample of 125 observations.

i.e. Total observations : n= 125

Total independent variables : k=10

Then, the value of the denominator in the calculation of the multiple standard error of estimate would be (125)-(10)-1 =114

Therefore , the value of the denominator in the calculation of the multiple standard error of estimate = 114 .

5 0

3 years ago

A hypothesis test has a significance level of 10%. Explain what this significance level represents.

beks73 [17]

In statistical methods, the significance level is a value that is used as a criterion for rejecting a null hypothesis. It used by first looking at the differences between the experimental results and from there the null hypothesis would be determined. Then, we assume that the null hypothesis is true, the probability of the differences is computed by using statistical tools. If the computed probability is less than or equal to the value of the significance level, then you conclude that the null hypothesis should be rejected and that the results are statistically significant. Usually, a significance level of 1% or 5% is used.

6 0

4 years ago

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