3 years ago

Please help me I will really appreciate it!!!

Mathematics

1 answer:

Margarita [4]3 years ago

4 0

The answer is D

U would subtract a^2 then square both sides to isolate the variable

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(1,-7) with a slope of -5 as an equation

Liono4ka [1.6K]

Answer:

y=-5x-2

Step-by-step explanation:

y=mx+b

where m is the slope

y=-5x+b

to solve for b, which is the y intercept, plug in (1,-7)

-7=-5(1)+b

-7=-5+b

-2=b

y=-5x-2

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3 years ago

What is -3x-5 = 16<br> I'm stuck on a simple problem

mariarad [96]

Answer:

-7

Step-by-step explanation:

-3x-5=16

-3x-5+5=16+5

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2 years ago

The screen on briannas new phone is 2.85 centimeters long. what mixed number represents the length of the phone screen?

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We know that
the number $2.85$ is equal to

$2.85=2+0.85$

$0.85$ is equal to

$\frac{85}{100}$
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so
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Casey has n nickels. Megan has 4 times as many nickels as Casey has. Write and expression for the total number of nickels Casey

AnnyKZ [126]

Step-by-step explanation:

Let n be the number of nickels that Casey has.

We are told that Megan has 4 times as many nickels as Casey has, therefore, the number of nickels that Megan has will be 4*n.

Now we will add the amounts of nickels that Casey and Megan have to find the total amount of nickels.

$\text{Total number of nickels Casey and Megan have}=n+4*n$

Therefore, the expression $n+4*n$ will represent the total number of nickels that Casey and Megan have .

Upon combining like terms we will get,

$\text{Total number of nickels Casey and Megan have}=(1+4)n$

$\text{Total number of nickels Casey and Megan have}=5n$

Therefore, Casey and Megan have 5n nickels.

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3 years ago