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3 years ago

Slope is 5 (-2,8) is on the line put in point slope form

Mathematics

1 answer:

Volgvan3 years ago

4 0

Answer:

y=5x+18

Step-by-step explanation:

The formula for point- slope is

y-y1= m(x-x1)

First substitute the values of the line from the question.

y-8=5(x+2)

Then solve for the slope- intercept form.

y-8=5(x+2)

y-8=5x+10

y=5x+18

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A bulb after certain testing had a life of 25 months. The standard deviation based on this sample of size one is

lapo4ka [179]

Answer:

<h2>25 months</h2>

Step-by-step explanation:

Using the formula for calculating the standard error of the mean to get the standard deviation. The standard error of the mean is expressed as;

SE = S/√n where;

S is the standard deviation

n is the sample size

Given SE = 25 months and n = 1, on substituting this parameters into the formula, we will have;

25 = S/√1

25 = S/1

cross multiply

S = 25*1

S = 25 months

<em>Hence the standard deviation based on the sample is 25 months</em>

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3 years ago

How long is 12 ft in a yard

mylen [45]

Answer:

I think that 12 feet is equal to 4 yards

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3 years ago

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Determine if the described set is a subspace. Assume a, b, and c are real numbers. The subset of R3 consisting of vectors of the

AveGali [126]

Answer:

Not a subspace

Step-by-step explanation:

(4,0,0) and (0,4,0) are vectors in R3 with zero or one entries being nonzero, but their sum, (4,4,0) has two nonzero entries.

7 0

3 years ago

Fifteen decreased by four times a number

expeople1 [14]

The answer is (4x)-15.

5 0

4 years ago

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What is the dimension of a rectangle if the perimeter is 198

AfilCa [17]

Answer:

Length = 49.5 unit and width = 49.5 unit

Step-by-step explanation:

Given as , Perimeter of rectangle = 198 unit

so ,as Perimeter of rectangle = 2× ( Length + width)

Or, 198 = 2 × (Length + width)

Or, $\frac{198}{2}$ = length + width

So, length + width = 99 unit

Now to make area maximum

Length × width = maximum

Or, (99 - width ) × width = maximum

99 Width - width² = maximum Let width = W

Now differentiate both side with respect to W

D(99W - W²) $\frac{D(99w - w^2)}{Dw}$ = 0 as, constant diff is 0

So, 99 - 2w = 0

Or, w = $\frac{99}{2}$

Or, w = 49.5 unit and L = 99- 4905 = 49.5 unit Answer

3 0

3 years ago