Find the equation of the line that passes through (-1,4) and is perpendicular to the line that passes through (2,2) and (4,-4)

HURRY! I need help on my exam. (10pts!)

Anna [14]

Answer:

oof

Step-by-step explanation:o o o f

7 0

3 years ago

Which graph is an example of a function? A) B) C) D)

Mama L [17]

The only example I saw was example B

3 0

3 years ago

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AnimeBrainly PleaseHelp!

jekas [21]

1.

Platinum Gym charges a one-time registration fee of $60, and membership is $20 a month.

Super Fit charges a one-time registration fee of $150, and membership is $10 a month.

(a) Write a expression to represent the membership cost of Platinum Gym for x months.

Let x = months

20x + 60 is your expression

(b) Write an expression to represent the membership cost of Super Fit for x months

Let x = months

10x + 150 is your expression

(c) You are solving for both one month and twelve months of membership.

One month: Plug in 1 for x.

20(1) + 60 = 20 + 60 = 80

10(1) + 150 = 10 + 150 = 160

Platinum Gym is cheaper overall for one month by $80

One year: There are twelve months in a year. Plug in 12 for x.

20(12) + 60 = 240 + 60 = 300

10(12) + 150 = 120 + 150 = 270

Super Fit is cheaper than Platinum Gym overall for one year by $30

(d) Set the two expression equal to each other.

20x + 60 = 10x + 150

Isolate the x. Subtract 10x and 60 from both sides

20x (-10x) + 60 (-60) = 10x (-10x) + 150 (-60)

20x - 10x = 150 - 60

Simplify

20x - 10x = 150 - 60

10x = 90

Isolate the x. Divide 10 from both sides

10x/10 = 90/10

x = 9

It takes 9 months for the cost to be the same.

(e) It really depends on how long you want to work out at a gym. If you are working out for less than a year, than Platinum Gym is the better choice. If more than a year, then Super Fit is the better choice.

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hope this helps

5 0

3 years ago

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One hexagonal prism has dimensions that are triple the dimensions of a similar hexagonal prism. If the volume of the smaller pri

damaskus [11]

First, we are going to find the scaling factor of the volume, and then, we are going to multiply that scaling factor by the volume of the smaller prism.

We know that our hexagonal prism has dimensions that are triple the dimensions of a similar smaller hexagonal prism. The scaling factor for each dimension is 3, but since we have 3 dimension (a prism is a 3 dimensional figure), we need to rise that scaling factor to the power 3 (that represent the three dimensions of our prism):
 $3^3=27$

Now we just need to multiply our volume scaling factor by the volume of our smaller prism:
 $V=27(4.75cm^3)$
$V=128.25cm^3$

We can conclude that the correct answer is the fourth choice: 128.25 cm3

6 0

3 years ago

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Rewrite the given square root as an imaginary number √-25

sineoko [7]

Answer:

5i

Step-by-step explanation:

$\sqrt{-25$