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3 years ago

Find the sum or difference of the polynomials. Write your answer in descending

Mathematics

2 answers:

nikitadnepr [17]3 years ago

5 0

Answer:

-2x^2-5x-3

Step-by-step explanation:

(3x^2 – 3x+6) - (5x^2 + 2x + 9)

Distribute the minus sign

(3x^2 – 3x+6) - 5x^2 - 2x - 9

Combine like terms

3x^2 -5x^2 -3x-2x +6-9

-2x^2-5x-3

djyliett [7]3 years ago

3 0

-2x^2-5x-3

Just distribute the negative, then combine like terms.

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andreev551 [17]

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AVERAGE SPEED = DISTANCE/TIME

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4 years ago

Can someone please help

Eddi Din [679]

The answer must be No. However, the reasons offered here don't make any sense in relation to the way traffic lights work. I believe the best choice may be

... because the results are likely to occur by chance.

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3 years ago

Half of your baseball card collection got wet and was ruined. You bought 9 cards to replace some that were lost. How many did yo

PtichkaEL [24]

solution:

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6 0

3 years ago

Please help me asap

AnnZ [28]

1. Answer is 2/3

2. Answer is 2/5

4 0

3 years ago

Help me solve this please I’m struggling

mrs_skeptik [129]

9514 1404 393

Answer:

9.5
maximum, 34.5, 5
10.9

Step-by-step explanation:

I find it convenient to use a graphing calculator to graph the function.

The "start" is x=0, where the distance from the sprinkler head is 0 feet. The value of h(0) is 9.5, the height of the sprinkler head.

The irrigation system is positioned  9.5  feet above the ground.

The graph shows the vertex of the curve is (5, 34.5), meaning that a height of 34.5 feet is reached 5 feet horizontally from the sprinkler.

The spray reaches a  maximum  height of  34.5  feet at a horizontal distance of  5  feet away from the sprinkler head.
The spray reaches all the way to the ground at about  10.9  feet away.

The graph shows the x-intercept at about 10.9. That is where the height of the spray is 0 feet above the ground.

7 0

3 years ago