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Aleksandr [31]
3 years ago
15

A sprinter started his race slowly and then increase his speed by 12.5 miles per hour to reach a top speed of 21 miles per hour

what was the sprinters speed before he increased his speed
Mathematics
1 answer:
IRINA_888 [86]3 years ago
8 0
21 mph - 12.5 mph = 8.5 mph
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On a sketch of a mural,3 inches represents one foot in the mural. A door in the sketch is 2 inches wide by 5 inches high. What i
grandymaker [24]

Answer:

Length of the door,                  <em> l</em> = 5 inches (<em>in</em>)

Width or Breadth of the door, <em>w</em> = 2 inches (<em>in</em>)

Perimeter                                   p = 2(l + w)

                                                   = 2( 5 + 2) <em>inches</em>

<em>                                                    = 2(5) inches + 2(4) inches</em>

                                                   = 10 <em>inches</em>  + 4 <em>inches</em>

                                                   = 14 <em>inches</em> or 14 <em>in</em>

  Step-by-step explanation:

The perimeter of a plane shape is the measurement of the length of its outside boundary, which means the distance around its edges.

The door in the sketch is the shape of a rectangle. the distance around the edge of the door is the sum of all the sides. The longer side of a rectangle is called the length and it is usually represented by letter<em> l</em> while the shorter side is known as width or breadth represented by letter <em>w</em> and<em> b </em>respectively. The perimeter is calculated by the formula 2(l + w). where l means the length and w represents the width.

4 0
3 years ago
Which is a solution to the equation?<br><br> (x −2)(x + 5) = 18
kifflom [539]
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wariber [46]

Answer:

19

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Inscribed Angle = 1/2 Intercepted Arc

< DBG = 1/2 ( DG)

< DBG = 1/2 ( 360 - BD - BG)

           = 1/2 ( 360 - 172 - 150)

           = 1/2 (38)

           = 19

8 0
3 years ago
Multiply. Do not round your answer.<br><br> 6.9 × 1.221 = <br><br><br> Thanks :D
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Answer:

8.4249 ur answer....

hope it helps

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