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d1i1m1o1n [39]
3 years ago
10

I need to know this give me answer

Mathematics
2 answers:
eimsori [14]3 years ago
8 0

Answer:the answer is b 10/21

Step-by-step explanation:

horsena [70]3 years ago
8 0

Answer:

B) 10/21

Step-by-step explanation:

Keep, change, flip

keep 2/7, change to multiply, flip to 5/3

2/7 x 5/3 = 10/21

Hope this helps! Pls give brainliest!

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A soccer player uses her head to hit a ball up in the air from a height of 2 meters with an initial vertical velocity of 5 meter
Mandarinka [93]

Answer:1.32 s

Step-by-step explanation:

Given

The initial height of ball H=2 m

Initial velocity u=5 m/s

Height of ball at any instant is given by

H=-4.9t^2+5t+2

The ball will hit the ground when h=0

-4.9t^2+5t+2=0\\4.9t^2-5t-2=0\\t=\dfrac{5\pm\sqrt{25+4(4.9)(2)}}{2\times 4.9}\\t=\dfrac{5\pm\sqrt{64.2}}{9.8}\\t=\dfrac{5+8.01}{9.8}=1.32\ s\quad\text{Neglecting negative value of t}

3 0
3 years ago
PLEASE HELPPppp
sasho [114]

Answer: B

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5 0
3 years ago
Any help is appreciated!!
CaHeK987 [17]

Answer:

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S_A_V [24]

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