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Elena L [17]
3 years ago
14

(03.01 LC)

Mathematics
1 answer:
Sedaia [141]3 years ago
8 0
  • Perpendicular=P=4
  • Base=B=4

Hypotenuse be H

Apply Pythagorean theorem

\\ \tt\hookrightarrow H^2=P^2+B^2

\\ \tt\hookrightarrow H^2=4^2+4^2

\\ \tt\hookrightarrow H^2=32

\\ \tt\hookrightarrow H=\sqrt{32}

\\ \tt\hookrightarrow H=5.8units

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Step-by-step explanation:

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3 years ago
a woman has $28,000. part is invested for one year in a certificate of deposit paying 7% interest, and the remaining amount in c
alexira [117]

Answer:

Amount invested at 7% = 16000

Amount invested at 9% = 12000

Step-by-step explanation:

Let x be the amount invested at 7% and y be the amount invested at 9%.

Since the total amount invested is $28000, therefore, we can set up the first equation as:

x+y=28000

Secondly, we are give that sum of two investments is $2200. Therefore, we can write the second equation as:

0.07x+0.09y=2200

Now we need to solve these two equations to get the values of x and y.

First of all, we multiply the second equation with 100 in order to get rid of decimal values.

(0.07x+0.09y)*100=2200*100\\7x+9y=220000

Let us use substitution method here. First of all we will solve for y from first equation and plug that into second equation.

y=28000-x

7x+9(28000-x)=220000\\7x+252000-9x=220000\\-2x=-32000\\x=16000

Therefore, amount invested at 7% is $16000 and amount invested at 9% is 28000-16000=$12000.

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3 years ago
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Step-by-step explanation:

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