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3 years ago

5. In a dilation what mathematical operation is used with th scale factor?

Mathematics

1 answer:

xxMikexx [17]3 years ago

6 0

Step-by-step explanation:

multiplication is the mathematical operation used with scale factor

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Line L passes through the points (0 - 3) and (6,9).

Luden [163]

a) find the slope of the line using the given points.

Slope: 9 - -3/6-0 then slope is 12/6 which is 2

Then using formula: y = mx+b

-3 = 2(0) + b

b = -3

The equation is: y = 2x -3

B. Slope of a perpendicular is -reciprocal of first line. So here the slope will be -1/2

y = mx + b is used again

2 = -1/2(0) + b

b = 2

The equation is: y = -1/2x +2

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3 years ago

Serena estimates that she can paint 60 square feet of wall space every half-hour. Write an equation for the relationship with ti

Katarina [22]

Answer:

So, the relationship with i hours as the indecent variables would be

Serena can't paint 400 square feet of wall space of wall space in 3.5 hours.

Step-by-step explanation:

Since we have given that

Area that she can paint = 60 square feet

Time taken = half hour = 30 minutes = 0.5 hours

Using "Unitary method, we get that

In 0.5 hours, she can paint = 60 square feet

In 1 hour, she can paint =

In i hours, she can paint =

Let the total area she can paint be 'y'.

So, the relationship with i hours as the indecent variables would be

Now, Can Serena paint 400 square feet of wall space i. 3.5 hours

We put y = 400 and i = 3.5 hours to check whether it is equal or not.

Hence, Serena can't paint 400 square feet of wall space of wall space in 3.5 hours.

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3 years ago

Read 2 more answers

For the expression 6 − y + 3, determine the coefficient for the variable term.

sergij07 [2.7K]

6 − y + 3

-y = (-1) (y)

so answer is −1

5 0

4 years ago

Read 2 more answers

Jim and Holly are making gingerbread men. It takes them both 2 minutes to make 2 gingerbread shapes. At this rate, how many peop

Ostrovityanka [42]

The answer is 2 person. The relation for 2 persons is as following: 2 minutes = 2 gingerbread men. If those 2 persons want to make 400 gingerbread men, they will need x minutes. So: 2 minutes : 2 gingerbread men = x : 400 gingerbread men. x = 2 minutes * 400 gingerbread men : 2 gingerbread men = 400 minutes. In other words, 2 persons will make 400 gingerbread men in 400 minutes.

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3 years ago

A national random sample of 654 women aged 20 – 29 years was taken, and each woman's body mass index (BMI) was measured. The sam

irakobra [83]

Answer:

The required interval is (26.23 , 27.37)

Step-by-step explanation:

The mean is = 26.8

The standard deviation is = 7.42

n = 654

At 95% confidence interval, the z score is 1.96

To find the desired interval we will calculate as: