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3 years ago

Hihi , please help if able.

Mathematics

1 answer:

qaws [65]3 years ago

7 0

Answer:

The correct answer is Choice C.

Step-by-step explanation:

When figuring out the perimeter, we need to count the number of sides. There are 8 sides in total. 5 sides have length labeled 'x' . 2 sides have the length labeled 'y' . Only 1 side has the length labeled 'z' .

In order to put that into an expression, just add the sides up.

5 sides of z + 2 sides of y + 1 side of z

Therefore, the expression that represents the perimeter of the figure is 5x + 2y + z.

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A rectangle has length 4 inches and width 2 inches. If the length and width of the rectangle are each reduced by 50 percent, by

exis [7]

Answer: 25%

Step-by-step explanation:

Given: A rectangle has length 4 inches and width 2 inches.

Area = Length x width

= 4 inches x 2 inches

= 8 square inches

If length is reduced by 50% , then length $=0.5\times4=2\text{ inches}$

If width is reduced by 50% , then length $=0.5\times2=1\text{ inch}$

Reduced area = (reduced length) x (reduced width)

= 2 inches x 1 inch

= 2 square inches

The percentage of the area of the rectangle be reduced :-

$\dfrac{\text{Reduced area}}{\text{Original area}}\times100 \\\\=\dfrac{2}{8}\times100\% \\\\=25\%$

Hence, the percent of the area of the rectangle be reduced = 25%

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3 years ago

a rotaing lawn. sprinkler sprays water over a circular area with. radius 10 yards. what is the area of the watered lawn?

dlinn [17]

The answer is 31.4 yards

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3 years ago

Michael bought a car for $15,540. He estimates that the car will depreciate by 5% each year. Which function represents this situ

Delicious77 [7]

Answer: $f(x) =15540(0.95)^x$

Step-by-step explanation:

Given , Micheal bought a car for $15,540.

Rate of depreciation = 5% = 0.05 { To convert a percentage into decimal or fraction , we divide it by 100]

The exponential function used to show depreciation in amount or value ina time period of 'x' is given by :-

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r= rate of depreciation.

As per given , we have

A= $15,540

r= 0.05

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3 years ago

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vazorg [7]

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2 years ago

Please look over WILL MARK BRAINLIEST!! Must answer both questions or your answer will be reported.

Bas_tet [7]

Answer:

Question 5: $1024\pi\ m^2$ ; Question 6: False

Step-by-step explanation:

Question 5:

$A=r^2\pi\\\\d=2r\\\\64=2r\\\\r=32\\\\A=32^2\pi\\\\A=1024\pi$

Question 6:

$A=r^2\pi\\\\d=2r\\\\12=2r\\\\r=6\\\\A=6^2\pi\\\\A=36(3.14)\\\\A=113.04$

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3 years ago

Read 2 more answers