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nirvana33 [79]
3 years ago
8

If DF= 9x-39, find EF.

Mathematics
1 answer:
Blizzard [7]3 years ago
8 0

4.333333

Hope this helps

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Circle C has radius of 10 cm. Each of points B and D is on the midpoint of the radius. Find the area of the shaded region.
olya-2409 [2.1K]
Simple :)
Area of shaded part = are of 1/4 circle - area of both triangles.
Are of circle = pie r^2 so 100x3.14 = 314 cm2.
Area of triangle AOB= area of triangleDOE = bh/2= 5x10/2= 25 each
However, the traingles share a common area which is quad DOB(I)
Lets take traingle AOE, whose are is bh/2=10x10/2=50cm2.
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3 years ago
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Nataly [62]

Answer:

so 2x+3x+130=180

so 5x+130=180

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The quantity q varies inversely with the square of m and directly with the product of r and x. When q is 2.5, mis 4 and the
saveliy_v [14]

Answer:

The constant of proportionality is 5.

Step-by-step explanation:

If the quantity q varies inversely with the square of m and directly with the product of r and x, then the variation equation is

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Multiply both sides by 2

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The price of an item has been reduced by 55%. The original price was $43.
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3 years ago
Yolanda makes wooden boxes for a crafts fair. She makes 300 boxes like this one shown, and she wants to paint all the outside fa
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Answer:

240

Step-by-step explanation:

that is it

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3 years ago
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