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Ksivusya [100]
3 years ago
9

from 1956 to 1966 the number of automobiles in the country increased at an annual rate of 6.65 percent. what is the doubling tim

e for growth in automobiles in the US?
Mathematics
1 answer:
NeTakaya3 years ago
4 0
A= P(1+i)ⁿ ,

where A is the value generated after a time " n" at an interest rate of i (in %).

When A = 2.P ?

Replace in the formula: 2.P = P(1+0.0665)ⁿ , after simplification by P, we get 

2= (1+0.0665)ⁿ

To calculate n, let' use ln (Neperian logarithm)
ln(2) = n.ln(1.0665) and

n=(ln2)/(ln(1.0665)  and  n=10.76 years , 

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How is multiplication using partial products different from multiplication using regrouping?
klio [65]
Partial products is breaking down every number in multiplication and adding them. Regrouping is grouping number them adding them.They are alike because they both involve breaking down the numbers and adding them.  They are different because one is taking all the numbers broken down, while the other is just a couple of the number.
5 0
3 years ago
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In a certain Algebra 2 class of 26 students, 16 of them play basketball and 9 of them play baseball. There are 5 students who pl
Olegator [25]

Answer:

  10/13 ≈ 76.9%

Step-by-step explanation:

P(A∪B) = P(A) +P(B) -P(A∩B)

P(plays basketball ∪ plays baseball)

   = P(plays basketball) +P(plays baseball) -P(plays both)

P(plays basketball ∪ plays baseball) = 16/26 +9/26 -5/26 = 20/26 = 10/13

P(plays basketball or baseball) = 10/13 ≈ 76.9%

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2 years ago
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Which of the following ordered pairs is a solution of the line y-2x=6
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<u><em>Answer:</em></u>

<u><em>x = -3 + Y/2</em></u>

<u><em>y= 6 +  2x</em></u>

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7 0
3 years ago
Find the nth term of: 11, 18, 37, 74, 135
storchak [24]
The nth term is 6n^2-11n+16
6 0
3 years ago
Emelia earns $8.00 per hour plus a gas allowance of $3.50 per day at her job. How much does Emilia's job pay in a day when she w
Bogdan [553]

Answer: Required expression = 8h +3.50

Emilia's job pay  $ 43.5 in a day when she works 5 hours.

Step-by-step explanation:

Given: Hourly earning = $8.00

gas allowance per day =  $3.50

Pay per day = (Hourly earning ) x (Number of hours ) + (gas allowance per day)

Let h = number of hours

Pay per day = 8h +3.50

If Emily worked for 5 hours, then put h= 5, we get

Pay per day = 8(5) +3.50

= $ 40 +3.50

= $ 43.5

Required expression = 8h +3.50

Emilia's job pay  $ 43.5 in a day when she works 5 hours.

7 0
2 years ago
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