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Snezhnost [94]
2 years ago
5

HELP ASAP -5 - k = -12 K=?

Mathematics
2 answers:
alexandr1967 [171]2 years ago
6 0
The answer is K= 7 because
-5-7=-12
pav-90 [236]2 years ago
5 0
-5-k=-12
To solve this start by getting all your numbers separate from K
To do this add 5 to both sides
-k=-7
Then multiply both sides by -1 to make k positive which leaves you with k=7 which is also your answer
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3 years ago
The mean of a normally distributed dataset is 12, and the standard deviation is 2.
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3 years ago
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What is the exact time t, in years, needed for the balance of an account that earns 5% annual 8. Interest compounded continuousl
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Answer:

It takes 22.52 years for the balance to triple in value.

Step-by-step explanation:

Continuous compounding:

The amount of money earned using continuous compounding is given by the following equation:

A(t) = A(0)(1+r)^t

In which A(0) is the initial amount of money and r is the interest rate, as a decimal.

Interest rate of 5%.

This means that r = 0.05, and thus:

A(t) = A(0)(1+r)^t

A(t) = A(0)(1+0.05)^t

A(t) = A(0)(1.05)^t

Time for the balance to triple?

This is t for which A(t) = 3A(0). So

A(t) = A(0)(1.05)^t

3A(0) = A(0)(1.05)^t

(1.05)^t = 3

\log{(1.05)^t} = \log{3}

t\log{1.05} = \log{3}

t = \frac{\log{3}}{\log{1.05}}

t =  22.52

It takes 22.52 years for the balance to triple in value.

3 0
3 years ago
A tree that is 14 feet tall casts a shadow that is 30 feet long. Find the angle of the elevation from the top of the shadow to t
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Step-by-step explanation:

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-3y+6x=18

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2x-y=6

2x-1y=6

2x-y=6

2x-y-6=0

7 0
3 years ago
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