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2 years ago

Help me please you guys. Been stuck on this one for an hour

Mathematics

1 answer:

nekit [7.7K]2 years ago

7 0

I think the answer is d hope this helps

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The top and bottom ends of a windshield wiper blade are R = 24 in. and r = 14 in., respectively, from the pivot point. While in

Orlov [11]

Answer:

Area swept by the blade = 448 $in^{2}$

Step-by-step explanation:

The arc the wiper wipes is for 135 degrees angle.

So, find area of sector with radius 24 inches. And the find area of arc with r=14 inches.

Then subtract the area of sector with 14 inches from area of sector with radius as 24 inches.

So, area of sector with r=24 in = $\frac{135}{360} *\pi *24^{2}$

Simplify it,

=216 $\pi$

Now, let's find area of sector with radius 14 inches

Area of sector with r=14 in = $\frac{135}{360} *\pi *14^{2}$

Simplify it

=73.5 $\pi$

So, area swept by the blade = 216 $\pi$ -73.5 $\pi$

Simplify it and use pi as 3.14.....

Area of swept =678.584 - 230.907

=447.6769

Round to nearest whole number

So, area swept by the blade = 448 $in^{2}$

3 0

3 years ago

A music store marks up the instruments it sells by 30%

Nat2105 [25]

Answer:

A. $58.50, B. $80

Step-by-step explanation:

mark up percentage $\frac{store price - actual price}{actual price}$ x 100

30 x 45 = 100SP - 4500

5850 = 100SP

Store Price > therefore, $ 58.50

A. $58.50

<em>Actual Price :</em>

130 AP = 10400 - 100AP

AP > $80

B. $80

3 0

3 years ago

7. Sandra had a coupon for 20% off. It took off $60 from the total cost. What was the original price of the item? Proportion Sol

Liula [17]

I’m pretty sure it’s b tell me if I’m wrong tho~~

6 0

3 years ago

Simplify 9r - 4s -6r + s

Serggg [28]

your answer is

3r-3s

3 0

3 years ago

Read 2 more answers

What is the mean for the set of data

AnnyKZ [126]

Answer:

B) 25

Step-by-step explanation:

First, you add up all the numbers. Then, you divide it by 9 which is the total amount of numbers there are.

7 0

3 years ago