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nlexa [21]
3 years ago
15

Jessie finish the first race in two minutes and seven seconds 10 finish 12 seconds faster than Jesse one finished eight seconds

faster than 10 how long did it take one to finish
Mathematics
1 answer:
Mandarinka [93]3 years ago
3 0
20 seconds faster than Jesse so one minute and 57 seconds is my best guess.
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Find the area of the unshaded part of the figure
Tcecarenko [31]
<h3>Answer:</h3>

  unshaded area = 25(4 -π) in^2 ≈ 21.46 in^2

<h3>Step-by-step explanation:</h3>

Each of the shaded circles has a diameter of (20 in)/4 = 5 in, which also is the width of the enclosing rectangle. Then each circle has a radius of 2.5 in, and an area of ...

  A = πr^2 = π(2.5 in)^2 = 6.25π in^2

The four circles together have an area of ...

  4A = 4·(6.25π in^2) = 25π in^2

The area of the rectangle is the product of its length and width:

  A = LW = (20 in)(5 in) = 100 in^2

Since the circles are shaded, the unshaded area is the difference between the rectangle area and the total area of the four circles:

  unshaded area = (100 in^2) - (25π in^2) = 25(4 -π) in^2 ≈ 21.46 in^2

7 0
3 years ago
a quadrilateral has 2 right angles. the measure of the third angle is 73, what is the measure of the forth angle?
hoa [83]

Answer: 107 degrees.

Step-by-step explanation:

A quadrilateral is defined as a 2-dimensional closed shape which has four sides and four vertices.

By definition the interior angles of a quadrilateral add up 360 degrees.

We know that this quadrilateral has 2 right angles (which are angles that measure 90 degrees) and we know that the measure of the third angle is 73 degrees.

Let be "x" the measure of the fourth angle.

Then you can write this expression:

360\°=90\°+90\°+73\°+x

And finally solve for "x":

 360\°=253\°+x

360\°-253\°=x

x=107\°

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1/3 (8-x)

Hope that helps, good luck
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Supplementary angle = Angels which add up to 180 degrees
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3 hours is the correct answer
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