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kherson [118]
3 years ago
5

Someone help please!!??

Mathematics
1 answer:
krok68 [10]3 years ago
6 0

Answer:

Because you get that 3=68° and 7=68° so 3=7 and that can be only if b and c are parallel

Step-by-step explanation:

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vitfil [10]

Answer:

7400.04

Step-by-step explanation:

Well, if one month is 616.67, then one year is just 12 months. Multiply 6l6.67 by 12, and the answer is 7400.04

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Write the numeral for fifty million and sixty thousand​
marishachu [46]
500060 is the answer
8 0
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Help pls<br> Points C, A, and B are collinear. Which of the following are opposite rays?
user100 [1]

Answer:

<h3>A and D </h3>

Step-by-step explanation:

Hope this helps

if its wrong i´m sorry i got my answer from math.way

7 0
3 years ago
How long will it take a $800 investment to be worth $900 if it is continuously compounded at 11% per year?
Kruka [31]
The formula is
A=p e^rt
A future value 900
P present value 800
E constant
R interest rate 0.11
T time?

We need to solve for t
T=[log (A/p)÷log (e)]÷r
T=(log(900÷800)÷log(e))÷0.11
T=1.07 years round your answer to get 1 year
3 0
3 years ago
Rich is comparing the cost of maintaing his car with the depreciating value of the car. When will the cost and value be the same
goldfiish [28.3K]

Complete question:

Rich is comparing the cost of maintaining his car with the depreciation value of the car.

The value starts at $20,000 and decreases by 15% each year. The maintanance cost is $500 the first year and increases by 28% per year.

When will the maintenance cost and the value be the same.

Answer:

9 years

Step-by-step explanation:

Depreciation is modeled by an exponential function :

A = p(1 - r)^t [decrease, '-']

A = 20,000(1 - 0.15)^t

A = 20000(0.85)^t - - - (1)

Maintainace cost :

A = p(1 + r)^t ; [increase, '+']

A = 500(1 + 0.28)^t

A = 500(1.28)^t - - - (2)

Equating (1) and 2

20000(0.85)^t = 500(1.28)^t

1.28^t / 0.85^t = 20000/500

(1.28 / 0.85)^t = 40

Take log of both sides

Log (1.28 / 0.85)^t = log 40

t * 0.1777910 = 1.6020599

t = 1.6020599 / 0.1777910

t = 9.01

t = 9 years

8 0
3 years ago
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