2 years ago

55 points for an instant correct answer :)

Mathematics

1 answer:

Debora [2.8K]2 years ago

8 0

Well x is the multiplied variable in this equation, so graph x,y

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The annual rate of depreciation, x, on a car that was purchased for $9,000 and is worth $4,500 after 5 years can be found using

Zolol [24]

Answer:

Step-by-step explanation:

We know that exponential formula of depreciation

$A=P(1-x)^t$

where

P is the initial amount

x is the interest rate

A is the amount after t years

we are given

The annual rate of depreciation, x, on a car that was purchased for $9,000

so, P=9000

we can plug value it

$A=9000(1-x)^t$

we are given

when x=5 , A=4500

so, we can plug it and solve for x

$4500=9000(1-x)^5$

$\frac{9000\left(1-x\right)^5}{9000}=\frac{4500}{9000}$

$\left(1-x\right)^5=\frac{1}{2}$

$x=-\left(\frac{1}{2}\right)^{\frac{1}{5}}+1$

$x=0.12945$

so, interest rate is 13%

now, we can plug x

and we get

$A=9000(1-0.13)^t$

$A=9000(87)^t$

Graph:

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2 years ago

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Using the quadratic formula to solve x2 = 5 - x, what are the values of x?

RideAnS [48]

Exact Form:

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−

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2 years ago

Is (2,3) a solution of the system

seropon [69]

Answer:

Yes

Step-by-step explanation:

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2 years ago

PLEASE ANSWERRRR

ryzh [129]

Answer:

positive

Step-by-step explanation:

If the variables tend to increase and decrease together, the association is positive.

hope this helps :)

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2 years ago

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Willing to give brainliest to the best answer! Please show your work! Need help with these 3 problems ASAP!

vampirchik [111]

Answer:

5:05

Step-by-step explanation:

3:30 + 1 hour = 4:30

4:30 + 35 mins = 5:05 pm

5 days per 1 gallon, 30 days for :

30/5 = 6

500/50 = 10

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2 years ago