2 years ago

What is the answer please help me no links I will report because it’s not ok

Mathematics

1 answer:

Pepsi [2]2 years ago

5 0

Answer: 150 minutes

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The equation y 4.9t 2 3.5t 2.4 relates the height y in meters to the elapsed time t in seconds for a ball thrown downward at 3.5

tamaranim1 [39]

Answer:

$t \approx 0.43\,s$

Step-by-step explanation:

The vertical displacement function is $y(t) = -4.9\cdot t^{2}-3.5\cdot t + 2.4$ , where $y(t)$ is measured in meters and $t$ in seconds. Ball hits the ground when $y(t) = 0$ . That is:

$-4.9\cdot t^{2}-3.5\cdot t + 2.4 = 0$

Whose roots can be found by using the General Formula for Second-Order Polynomials:

$t_{1,2} = \frac{3.5\pm \sqrt{(-3.5)^{2}-4\cdot (-4.9)\cdot (2.4)} }{2\cdot (-4.9)}$

Solutions of this polynomial are:

$t_{1} \approx 0.43\,s,t_{2} \approx -1.14\,s$

Only the first root is physically consistent.

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3 years ago

Find coordinates of point c

BaLLatris [955]

Ans n solution can refer in the picture

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3 years ago

Ratio and proportion :21:2x=7:10

jenyasd209 [6]

Answer:

x=15

Step-by-step explanation:

21:2x=7:10 can be rewritten as 21/2x=7/10

21/2x=7/10, cross multiply

= 14x=210

x=15

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2 years ago

Read the paragraph below. Which would be the most helpful peer review comment to make about the writer’s style?

sasho [114]

Answer:

“I think wolves are scary, too. You’ll have to do more to convince me that they’re not!”

Step-by-step explanation:

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1 year ago

Simplify the expression 3+(8+a)

-Dominant- [34]

Answer:

The simplified version of this expression is 11 + a.

Hope this helps!

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3 years ago

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