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tekilochka [14]
3 years ago
10

Sal was tired of waiting for Amir to show up at their meeting place, so he started running at an average speed of 4.5 mph withou

t him. Ten minutes later, Amir still had 0.25 of a mile to go before he reached the meeting place, but Sal was 0.75 of a mile beyond it. If Amir is running at a faster pace, 6.7 mph, to the nearest hundredth of an hour, after how much time will Amir catch up to Sal?
Mathematics
1 answer:
tester [92]3 years ago
4 0
4.5x=6.7x-1
2.2x=1
x=1/22
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How do you compare 7/8 ___ 15/16 ?
solong [7]

Answer:

7/8 < 15/16

Step-by-step explanation:

Get a common denominator of 16

7/8 *2/2

14/16

14/16 < 15/16

so 7/8 < 15/16

3 0
3 years ago
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9. The endpoints of a diameter of a circle are A (2,1) and B(5,5). Find the area of the circle in terms of . (1 point)
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Answer:

Area of the circle is 6.25π sq.unit

Step-by-step explanation:

The centre of the circle is at the mid point of a diameter. Th mid point of the diameter is at (5+22,5+12)or(72,3),which is centre. Radius is the distance from end point (5,5)to centre (72,3)∴r=√(5−72)2+(5−3)2=√1.52+4=√6.25=2.5∴

Area of the circle is Ac=π⋅r2=π⋅2.52=6.25π sq.unit[Ans]

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2 years ago
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Vladimir79 [104]
It’s B if there are straight lines and B is there dot it but did u post the same question two times?
7 0
3 years ago
The vertex form of the equation of a parabola is y = 2(x + 4)2 - 21.
Ronch [10]

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2(x + 4)(x + 4) - 21

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Find the perimeter and area of the figure.
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P=2 (a+b)=2•(7+15)=44
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3 0
2 years ago
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