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TEA [102]
3 years ago
13

Geometry.

Mathematics
1 answer:
Harman [31]3 years ago
8 0
Check the picture below.

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Please help with geometry
Margarita [4]

Step-by-step explanation:

a) gradient= y2-y1/x2-x1

gradient of AB:

gradient=-4-1/2-3

=-5/-1

=5

gradient of BC:

=-5+4/7-2

=-1/5

b) as the priduct of both gradient is -1 ,both lines are perpendicular.

c) as we have seen lines are perpendicular so it is a right angled triangle.

8 0
3 years ago
Drew replaces the light bulb in the hall closet every 9 months and replaces the air filter every 6 months. He just replaced both
natita [175]
The 18th month he will have to change both, 
     I hope this helped!
4 0
3 years ago
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There were 94,172 people at a football on Saturday. On Monday, 1,000 fewer people were at a football game. In word form how many
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There was ninety three thousand one hundred seventy two people
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3 years ago
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Which is the best estimate of the mass of a skateboard
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8 0
3 years ago
90 x= 81 + 25 <br> I need help ?
charle [14.2K]

Answer:

x = \frac {53} {45}

Step-by-step explanation:

<u>Step 1:  Combine on the right side </u>

90x = 81 + 25

90x = 106

<u>Step 2:  Divide both sides by 90 </u>

\frac {90x} {90} = \frac {106} {90}

x = \frac {106/2} {90/2}

x = \frac {53} {45}

Answer:  x = \frac {53} {45}

4 0
3 years ago
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