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3 years ago

PLEASE HELP ME ASAP 50 POINTS AND BRAINLIEST!!!!!!

Mathematics

1 answer:

Virty [35]3 years ago

7 0

Answer:

The first shape is triangle; area of a triangle = 1/2*b*h

= 1/2*7*3

= 1/2*21

= 21/2

= 10.5

The second shape is rectangle; area of rectangle = l*b

= 7*3

= 21

Total area:

10.5+21

= 31.5

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3 years ago

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3 years ago

A cleaning company charged $125 to clean a 2500 square foot house. The same company charged $146 to clean a 3200 square foot hou

HACTEHA [7]

Answer:

The cost is y = $185

Step-by-step explanation:

Let us have points spelt out here

(2500,125) and (3200,146)

The general form of a straight line equation is;

y = mx + b

where m is slope

So to calculate the slope in this case, we have

m = (146-125)/(3200-2500)

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So we have the equation as

y = 0.03x + b

To get b, we use any of the two points

Let us use (2500,125)

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125 = 0.03(2500) + b

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4 0

3 years ago

You want to purchase a new car in 55

Tanzania [10]

Answer:

Ans. you should deposit each month to end up with $38,000 the amount of $533.33 every month for 5 years at a APR of 6.5%

Step-by-step explanation:

Hi, first we have to convert all the data to monthly basis, that is, 5 years (5*12=60 months) and the rate of 6.5% APR offered by the bank (Monthly rate = 0.065/12=0,005666667 or 0.5667% monthly)

With that in mind, we need to solve for "A" the following equation.

$FV=\frac{A((1+r)^{n}-1) }{r}$

Where:

FV = Future value of the car

r = rate of return offered by the bank

n = number of periods that you are going to make the monthly deposit

That is:

$38,000=\frac{A((1+0,005667)^{60}-1) }{0,005667}$

$38,000=\frac{A(0,403599896)}{0,005667}$

$38,000=A(71,22351103)$

$A= 533,53$

Best of luck.

5 0

3 years ago