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S_A_V [24]
3 years ago
14

Helena deposited $89 into a saving account. According to the rule of 72 what interest rate will cause her money to double in app

roximately 38 years
Mathematics
2 answers:
ivolga24 [154]3 years ago
3 0
89×2=89(1+r)^38
(89×2)/89=(1+r)^38
2=(1+r)^38
\sqrt[38]{2}  = 1 + r
r=0.018
Interest rate:1.8%
Ugo [173]3 years ago
3 0

Answer:

1.9% apex

Step-by-step explanation:


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Express each answer in simplified radical form √24+4√54=?
VMariaS [17]

Answer:

The answer to your question is:    14\sqrt{6}

Step-by-step explanation:

                                            √24+4√54

                            \sqrt{2^{2}(2)(3)} + 4\sqrt{3^{2}(3)(2) }

                                     2\sqrt{6}  + 12\sqrt{6}

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3 0
3 years ago
Help me pls the question is in the picture
MaRussiya [10]

Answer:

M<C = 37 degrees

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Step-by-step explanation:

The exterior angle theorem can be measured by the hypotenuse of a 90 degree angle. Since there is no hypotenuse in the matrix, you don't need to make it positive :)

Therefore, after using this theorem, I came to the conclusion that m/C would be 37 degrees, since I calculated the measure of the angle. I used the same tactic on m/D and m/DEC.

I hope this helps :)

4 0
3 years ago
A rectangle is formed by placing two identical squares side by side
Agata [3.3K]
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7 0
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