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viva [34]
3 years ago
15

What is the sum of the polynomials? (6x + 7 + x2) + (2x2 - 3)

Mathematics
2 answers:
astraxan [27]3 years ago
8 0

Answer:

3x^2+6x+4 is the answer :D

zepelin [54]3 years ago
4 0

Answer:

3 x^2 + 6x+4

Step-by-step explanation:

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An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin
kkurt [141]

Answer:

<em>t = 3 seconds</em>

Step-by-step explanation:

We have the equation, as a function of time, that describes the height of the object that is dropped from the bridge.

The equation is:

h (t) = 144 - 16t ^ 2

Where t is the time in seconds and h is the height in feet.

To know how long it takes the object to fall to the ground we do h (t) = 0 and solve for t.

So:

0 = 144 - 16t ^ 2\\\\16t ^ 2 = 144\\\\t ^ 2 = \frac{144}{16}\\\\t ^ 2 = 9\\\\t_1 = 3\\t_2 = -3

We take the positive solution.

Therefore the object takes 3 seconds to reach the ground

4 0
3 years ago
Read 2 more answers
Helppp I am falling plsss
Virty [35]
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6 0
3 years ago
PLSSSS HELP MEEE IM FIXING MY GRADES 2 to the power of 2 + 2(4 − 2)
Vitek1552 [10]

Answer:

8

Step-by-step explanation:

2^2+2(4-2)

4+8-4

8

Hope this helps :D

4 0
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