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Marrrta [24]
3 years ago
15

Which one of these are the right answers. Help ASAP.

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
6 0
D: 51.2

-1.5(20) + 81

-30 + 81.2

51.2

Hope this helped :)
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$800 at 7% compounded annually for 2 years
Marina86 [1]

Answer:

$115.92

Step-by-step explanation:

To calculate compound interest, which Amount - Principal but we dont know the value for amount so we find the amount first by using the formula.

               A =  P ( 1 +   <u>R</u> ) ^n

                                 100      

where p = principal    ($800)            

a =  amount       (?)

r =  interest rate    (7%)

n = time ( no of years)    (2)

A  =  800   ( 1   +   <u>7 </u>) ^2

                          100                  A = 800 ( 1 + 0.07) ^2

                                                  A = 800 ( 1.07)^2   = 800 ( 1.1449)

A = 915.92.

We then find compound interest with:    

C = Amount - Principal   =   $915.92  -  $800    =    $115.92

7 0
2 years ago
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Allushta [10]

Answer:

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Step-by-step explanation:

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56 is the right answer
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Step-by-step explanation:

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Please help with this. Thanks
lisov135 [29]

Answer:

\sqrt{106}

Step-by-step explanation:

Given <u>v</u> = < - 5, 9 > then the magnitude is

| <u>v</u> | = \sqrt{(-5)^2+9^2} = \sqrt{25+81} = \sqrt{106}

4 0
4 years ago
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