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WITCHER [35]
4 years ago
12

Please please help!

Mathematics
1 answer:
Vikentia [17]4 years ago
4 0

midpoint formula

BD=( {0+a}\2 , {a+0}\2)

=( a/2 , a/2 )

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A stained glass window is going to be installed in a semi-circular opening, which is above a 30 inch wide door. If the stained g
xenn [34]
The answer is <span>$494.55</span>

Let's first imagine a circle and calculate its area and then reduce it in half for the area of a semi-circle. Since this opening is above <span>a 30-inch wide door, the circle will have a diameter of 30 inches.
The area of the circle (A) is:
A = </span>π · r²
where:
π = 3.14
r - radius: r = diameter ÷ 2 = 30 ÷ 2 = 15 inches

So, the area of the circle is:
A = π · r² = 3.14 · 15² = 706.5 inches²

The area of the semicircle is half of the area of the circle:
A1 = A ÷ 2 = 706.5 ÷ 2 = 353.25 inches²

Since  the stained glass window costs $1.40 <span>per square inch, for 353.25 square inches it will cost $494.55:
353.25 square inches * 1.40 $/square inch = $494.55</span>
4 0
3 years ago
How do I factorise 42x-18
ikadub [295]
6 (7x - 3) 

You have to factor 6 out of 42x - 18.

Hope this Helps!!
7 0
3 years ago
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Joel made some muffins he gave 1/4 of the muffins to a neighbor. He took 3/8 of the muffins to school. What fraction of the muff
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4 years ago
Question 2..plz help meee​
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refer to the attachment

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3 years ago
Rachel just purchased a homeowners insurance policy for her new home that costs $0.43 per $100. Her home is worth $387,500. What
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Answer:

The answer is A.

Do you need an explanation?

387,500 /100 = 3,875

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3 years ago
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