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lapo4ka [179]
3 years ago
7

Assume the cost of a car is $25,000. With continuous compounding, in effect, the cost of the care will increase according to the

equation C=25,000e^et, where r is the annual inflation rate and t is the number of years. Find the number of years it would take to double the cost of the rate at an annual inflation of 3.2%. Round the answer to the nearest hundredth.
Mathematics
1 answer:
Masja [62]3 years ago
4 0
The value of t that makes the factor e^(.032t) have the value of 2 can be found using logarithms.
  2 = e^(0.032t)
  ln(2) = ln(e^(0.032t)) = 0.032t
  t = ln(2)/0.032 ≈ 21.66

It would take 21.66 years for the cost to double.
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F(x) = x2<br> What is f(x) + f(x) + f(x)?
Yuliya22 [10]

Answer:

if you meant x squared the answer is 3x^2

Step-by-step explanation:

If f(x) is equal to 2x you can substitute x squared for f(x) and that would be x squared+x squared+x squared which is 3x^2

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3 years ago
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Harrizon [31]

Answer:

B

Step-by-step explanation:

y=n(x+5)(x-3)

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or y=n(x²+2x-15)

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3 years ago
EASY MATH!!! GIVING BRAINLIEST!!
musickatia [10]

Answer:

55

Step-by-step explanation:

So lets take our 50 dollars.

Next, take your increase of 5%. Remember, 5% is 0.05, and it is a increase of 5%, so we are multipling 50 by 1.05.

Before we start multiplying, lets recall that this occurs twice(2 years), but this doesnt mean we multiply 50 by 1.10. No, we just mutiply 50 by 1.05 2 times:

50*1.05

=

52.5

52.5*1.05

=

55.25

So your answer is 55 dollars(rounding down).

Hope this helps!

4 0
2 years ago
 m∠A = 42 and m∠C = 57. Find m∠B.<br>A. 81<br><br> B. 99<br><br> C. 132<br><br> D. 147
faltersainse [42]
A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
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Linear or nonlinear ?
timurjin [86]
Nonlinear is correct the points are scattered across the graph :)
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