3 years ago

Graph the points and state whether they are collinear.

1 answer:

4 0

All that is needed is for you to graph the points and if they form a line, they will be collinear. If not, they will not be collinear.

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A ball is shot upward from a slingshot at a velocity of 15 m/s the height of the ball after t seconds is given by h(t)=10+ 5t+1/

otez555 [7]

Answer:

The instantaneous velocity after eight seconds is 9 m/s

Step-by-step explanation:

Given as :

The ball shot upward with velocity of 15 m/s

The height of the ball after t sec is given as h(t) = $10 + 5t + \frac{1}{4}t^{2}$

Now, The instantaneous velocity after 8 sec = $\frac{\partial h(t)}{\partial t}$

Or, The instantaneous velocity = $\frac{\partial (10 +5t + \frac{1}{4}t^{2})}{\partial t}$

or, The instantaneous velocity = $5 + \frac{1}{4}\times 2 t$

Now at t = 8 sec

The instantaneous velocity = 5 + 4 = 9 m/s

Hence The instantaneous velocity of ball at t = 8 sec , is 9 m/s Answer

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3 years ago

a square swimming pool has a cement sidewalk around it. The sidewalk is the same width all the way around. The outside perimeter

VLD [36.1K]

Answer:

175 square feet

Step-by-step explanation:

the area of the whole thing is 400 ft. (20 x 20=400)

i got the 20 from the perimeter b/c 20+20+20+20=80

then subtract the area of the pool from 400 to get 175.

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2 years ago

Use the grouping method to factor x3 + x2 + 2x + 2.

NISA [10]

Therefore the answer is D. (x + 1)(x2 + 2)

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3 years ago

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5 times 8/7 FOR MAtH

aleksklad [387]

Answer:

40/7 = 5 5/7

Step-by-step explanation:

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2 years ago

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Fill in the blanks to complete the description of the track. The track has ____ sides of the square and the distance around ____

rjkz [21]

Answer:

Step-by-step explanation:

The track has four sides of the square and the distance around 2 complete circle(s)

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