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Digiron [165]
2 years ago
10

The area of a rectangle is 36 square feet. find the length and width if the length is 4 times the width

Mathematics
2 answers:
saul85 [17]2 years ago
7 0
Area of a rectangle= length x width


length= 4 x width

36= width x (4 x width)

36= 4 x width^2

36/4= width^2

9=width^2

square root (9)= width

width= 3

36=length x width

36= length x 3

36/3= length

length=12
vova2212 [387]2 years ago
4 0
Yeah the length is 12
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2 years ago
Activity Give the exponential model for the following situation​
Otrada [13]

Answer:

Suppose that a couple invested $50,000 in an account when their child was born, to prepare for the child's college education. If the average interest rate is 4.4% compounded annually, ( A ) Give an exponential model for the situation, and ( B ) Will the money be doubled by the time the child turns 18 years old?

( A ) First picture signifies the growth of money per year.

( B ) Yes, the money will be doubled as it's maturity would be $108,537.29.

a = p(1 + \frac{r}{n} ) {}^{nt}a=p(1+

n

r

)

nt

a = 50.000.00(1 + \frac{0.044}{1} ) {}^{(1)(18)}a=50.000.00(1+

1

0.044

)

(1)(18)

a = 50.000.00(1 + 0.044) {}^{(1)(18)}a=50.000.00(1+0.044)

(1)(18)

a = 50.000.00(1.044) {}^{(18)}a=50.000.00(1.044)

(18)

50,000.00 ( 2.17074583287910578440507440 it did not round off as the exact decimal is needed.

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6 0
3 years ago
HELP PLEASE!! I NEED HELP ASAP!
Alex73 [517]

Answer:

4. A

5. B

Step-by-step explanation:

4. I'll solve question four first:

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y = -3/8x + 1/2

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