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Alborosie
3 years ago
8

Is this equation a direct variation? Y= 4x + 9

Mathematics
1 answer:
Ket [755]3 years ago
8 0
No it wouldn't because a direct variation is in a  y=kx formula. That equation shown above is in a y=mx+b format,which is a formula for slope intercept form
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the value of a car when purchased in 2008 was $21,500. It loses 12% of its value every year. What is the value of the car in 201
shusha [124]

Answer: the value of the car in 2019 is $5269

Step-by-step explanation:

It loses 12% of its value every year. This means that the value of the car is decaying exponentially. We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the car after t years.

t represents the number of years.

P represents the initial value of the car.

r represents rate of decay.

From the information given,

P = $21500

r = 12% = 12/100 = 0.12

t = 2019 - 2008 = 11 years

Therefore

A = 21500(1 - 0.12)^11

A = 21500(0.88)^11

A = 5269

6 0
3 years ago
How many times does 48 go into 80
anastassius [24]
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3 0
3 years ago
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Please help I will reward brainly
krok68 [10]
Hi there!

Since the sum of all angles in any triangle always adds up to 180 degrees, we can calculate this and solve for x.

4x + x + x = 180°
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So, now we know that x is 30°.

Hope this helps!
7 0
3 years ago
an octagon has sides that all have a length of y. Write a simplified algebraic expression for the perimeter of the octagon in te
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Step-by-step explanation:

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