3 years ago

Find the gradient of the line segment between the points (-6,2) and (4,10).

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

8 0

The answer is 4/5. Use the gradient formula y2-y1/x2-x1

Brilliant_brown [7]3 years ago

5 0

Answer:

Step-by-step explanation:

gradient/slope/m formula:-

(-6,2) (4,10).

m=(10-4)/(-4-6)

m=6/2

m=3

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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

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Burka [1]

Answer:

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Step-by-step explanation:

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Art [367]

Answer:

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tamaranim1 [39]

Answer:

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Step-by-step explanation:

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ch4aika [34]

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3 years ago

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