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Amiraneli [1.4K]
2 years ago
13

Which statement is true?

Mathematics
1 answer:
Sedbober [7]2 years ago
7 0

Answer:

This is the right one that's true

\frac{2}{5 } = 0.4

8.6 = 0.086\%

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Solve this quadratic equation.<br> x2 + 5x + 3 = 0
Xelga [282]

Answer:

Step-by-step explanation:

2x+5x+3=0

7x+3=0

   -3   -3

   =0  =-3

7x=-3

-3/7=-0.42857142857

x=-0.42857142857

I think it is right

3 0
2 years ago
A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function
FinnZ [79.3K]

Answer:

The ball reaches a height of 29.25 ft after 1.125 seconds

Step-by-step explanation:

The maximum height of a parabola can always be found by looking for the vertex. You can find the x value (or in this case the t value) of a vertex by using -b/2a in which a is the coefficient of x^2 and b is the coefficient of x.

-b/2a

-(36)/2(-16)

-36/-32

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Now to find the height, we input that value in for t

h = -16t^2 + 36t + 9

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29.25 feet

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3 years ago
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murzikaleks [220]

Answer:

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3 quadrant

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