10. What is the area of a triangle with base 4cm and

Mathematics

1 answer:

sergiy2304 [10]2 years ago

4 0

Step-by-step explanation:

Area of triangle = 0.5(4)(8) = 16cm² (D).

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Kyle took out a seven-year loan of $8,000 loan from his bank. The bank charges an interest rate of 5 percent, compounded yearly.

Nookie1986 [14]

Assuming the loan is as described, seven-year loan, which means that Kyle does not repay a cent before seven years.

This is a compound interest problem where n=7 years, interest rate i=0.05, and present value P=8000.

At the end of seven years, Kyle will have to pay

Future value = F = P(1+i)^n = 8000(1.05)^7 = 11256.80 (to the nearest cent)

7 0

3 years ago

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A water sprinkler has a range of 5 meters as shown. The jet of water from the sprinkler sweeps out at an angle of 85° as the noz

damaskus [11]

Take a look at the attachment below. It may help!

With this sector we can create a proportion to find the area watered by the sprinkler. 85 degrees over a total 360 degrees would be simplified to the following -

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Thus, we can calculate the area of the circle with a range of 5 meters radius, and divide by about 4.235 to receive the area watered by the sprinkler, or the area of the sector -

$Area( Full Circle ) = \pi r^2,\\Area( Full Circle ) = \pi * ( 5 )^2,\\Area( Full Circle ) = 25\pi,\\\\Area( Full Circle ) = ( About ) 78.5$