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yarga [219]
3 years ago
14

Positive solution to the quadratic equation? (x-2)(x + 7) = 0

Mathematics
1 answer:
Kamila [148]3 years ago
5 0

Answer: x=2

Step-by-step explanation: set each equal to zero

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According to this diagram, what is cos 16°?
Zarrin [17]

Answer:

24/25

Step-by-step explanation:

cos means adjacent / hypotenuse

when we look at the graph we can see that the adjacent of cos 16 is 24and hypotenuse is 25 so the answer will be 24/25

3 0
3 years ago
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A runner wants to be able to run 400m in 50 seconds. what miles per hour speed must have Runner attain to accomplish this goal.
liubo4ka [24]
Expected speed: 400 m in 50 seconds 
Therefore, speed in m/sec = 8 m/sec 
Given: 1 mile =1609 meters 
1 meter = 1/1609 miles 
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 To convert seconds to hour, we should multiply it by 1/3600 
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  =17.9 miles / hr
5 0
3 years ago
2 = 2(m − 8) − 2<br> m =
makkiz [27]
Use distributive property
2 = 2m - 16 - 2
Simplify
2 = 2m - 18
Add 18
20 = 2m
m = 10
6 0
3 years ago
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Help me as much as you can please :)
Ymorist [56]

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If swing A is shorter in length than swing B.
Dmitriy789 [7]
A because if you apply Newton's law to this problem, then the longer rope (B) would swing farther but would get to the point of destination slower than A would. Hope this awncered ur problem.
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