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2 years ago

The slope of the line below is -4. which of the following is the point-slope form of the line

Mathematics

1 answer:

MrMuchimi2 years ago

8 0

Answer:

y - b = -4(x - a)

Step-by-step explanation:

If the line passes through (a, b), then the point-slope form of the equation of the line is y - b = -4(x - a). Where's the line you mention?

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Recently, the value of a house increased by 20.5%.

ioda

550,000 x .205 = 112,750
550,000 + 112,750 = $662,750
To find the % of something, just move the decimal 2 places to the left to multiply.

8 0

2 years ago

Claudia says that she used the GCF to factor the expression 20x + 100xy as 20(x + 5xy). Is she correct? Explain.

Keith_Richards [23]

No, She is not correct.

Step-by-step explanation:

To find the greatest common factor of the expression 20x + 100xy.

Given expression 20x + 100xy.

Let us factor the expression 20x + 100xy.

Now take the common factor in the expression 20x + 100xy.

The common factor is 20x.

So, 20x + 100xy = 20x( 1+ 5y)

But Claudia says that the greatest common factor is 20(x+5xy).

The GCF is wrong.

So, she is not correct.

8 0

3 years ago

A researcher computes the definitional formula for SS, and finds that Σ(x − M) = 44. If this is a sample of 12 scores, then what

olga_2 [115]

Answer:

Option B.

Step-by-step explanation:

Given information:

Σ(x − M) = 44

where, M is mean.

Sample size = 12

The computational formula for sample variance is

$s^2=\dfrac{\sum (x-M)^2}{N-1}$

where, M is sample mean and N is sample size.

Substitute Σ(x − M) = 44 and N=12 in the above formula.

$s^2=\dfrac{44}{12-1}$

$s^2=\dfrac{44}{11}$

$s^2=4.0$

The sample variance is 4.0.

Therefore, the correct option is B.

5 0

2 years ago

Mathematics sat question

navik [9.2K]

Answer: A) $a^{2}$ + a

add the two equations together to get A.

the ones cancel eachother out and you cant add $a^{2}$ to a

5 0

2 years ago

Read 2 more answers

Graph the solution to the system of inequalities in the coordinate plane 3y>2x+122+y<-5

alexdok [17]

The graph is shown in the attached image.

3 0

1 year ago