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3 years ago

Write an equation of the line that is parallel to the given line y = 2x + 3 and the given point (-4,1).

1 answer:

7 0

Parallel lines has equal slopes.

Line y = 2x + 3 has a slope of 2.

Required equation is y - 1 = 2(x + 4)
y = 2x + 8 + 1
y = 2x + 9

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78% of those surveyed at the fair bought popcorn statistic or parameter

vlada-n [284]

Step-by-step explanation:

78% of those surveyed bought popcorn statistic or parameter. This means that significantly more than half of the given population bought popcorn statistic or parameter.

If the population is, say ten thousand, then 78% of 10000 is

10000 × 78/100 = 7800.

Which is more than half the whole population.

3 0

3 years ago

The surface area of a sphere is 576pi square units. Which choice represents the volume of the sphere?

Leona [35]

Answer:

$\large\boxed{V=2304\pi}$

Step-by-step explanation:

The formula of a surface area of a sphere:

$S.A.=4\pi R^2$

R - radius

We have

$S.A.=576\pi$

Substitute and solve for R:

$4\pi R^2=576\pi$ <em>divide both sides by π</em>

$4R^2=576$ <em>divide both sides by 4</em>

$R^2=144\to R=\sqrt{144}\\\\R=12$

The formula of a volume of a sphere:

$V+\dfrac{4}{3}\pi R^3$

Substitute:

$V=\dfrac{4}{3}\pi(12^3)=\dfrac{4}{3}\pi(1728)=(4)\pi(576)=2304\pi$

3 0

3 years ago

1. Which value of the denominator would make the below statement true?

mamaluj [8]

Answer:

d. 24

Step-by-step explanation:

3 0

2 years ago

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Does anyone know how to solve 54 = 36 - 9b

vodomira [7]

Answer:

-2

Step-by-step explanation:

54 - 36 = 18

18 % -9 =-2

6 0

3 years ago

Read 2 more answers

Which expression represents 12 times a number, n, minus 6?

Ulleksa [173]

Answer:

A. 12n - 6

Step-by-step explanation:

12 times a number which is n so

12n then minus 6 ,

12n-6

hope this helps

6 0

3 years ago

Read 2 more answers