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Crank
3 years ago
15

Find the value of the expression 4a^4-2b^2+40 when a = 2 and b=7

Mathematics
1 answer:
Sonbull [250]3 years ago
6 0

6 would be your answer

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A person invest $1800 in a account that earns 2.46% annual interest. Find when the value of the investment teachers $3500
GrogVix [38]

Answer:

28 years

Step-by-step explanation:

To find the number of years that the investment will reach $3500, we can use the formula of compound interest:

P = Po * (1+r)^t

where P is the final value, Po is the inicial value, r is the annual interest and t is the time in years.

In this question, P = 3500, Po = 1800 and r = 2.46% = 0.0246, so:

3500 = 1800 * (1+0.0246)^t

1.0246^t = 3500/1800

1.0246^t = 1.9444

Using logarithm in both sides:

log(1.0246^t) = log(1.9444)

t*log(1.0246) = 0.2888

t * 0.0106 = 0.2888

t = 0.2888 / 0.0106 = 27.2453 years

So the investment will reach $3500 after 28 years (rounding the result up, because after 27 years the investment will not reach $3500)

4 0
3 years ago
I need to find the measure of each angle. I don't know where or how to start?​
kirill115 [55]

Answer:

40°

Step-by-step explanation:

Every triangle adds up to 180°

So to get the angle of the triangle we already have two values of:

180 - 79 - 52 = 50

Then since it's at a 90° angle we can subtract 50 to get:

40° as the other part of the right angle.

And applying the 180 rule again:

180 - 100 - 40 = 40

7 0
3 years ago
Mike is mixing paint for his walls. He mixes 1/6 gallon blue paint and 5/8 gallon green paint in a large container. What fractio
Step2247 [10]
The total amount of paint i think is 19/24
5 0
3 years ago
Read 2 more answers
-1/6 x -3/5 the answer has to be a fraction
fiasKO [112]
<h2>-1/6 x -3/5 = 3/30 =<em><u> 1/10</u></em></h2>

8 0
2 years ago
Read 2 more answers
Instructions: Select the correct answer.
wariber [46]
It's most likely the 2nd answer.
3 0
3 years ago
Read 2 more answers
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