3 years ago

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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Nori had 2 bags of apples. He used 1. bags of apples to make pies. How

Inessa05 [86]

Answer:

8/12 left

Step-by-step explanation:

8/12 of a bag left

2 1/12 = 25/12

1 5/12 = 17/12

25-17 = 8

The answer is 8/12

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2 years ago

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Hwo do i put this sentence into mathematical way. "The difference of a number and eighty is equivalent to the sum of double the

UNO [17]

I think it would be something like this: x-80 = (x*2)+12

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2 years ago

What values of k will make the line containing points (k,3) and (-2,1) parallel to the line through (5, K) and (1,0)

rjkz [21]

Answer:

k = -4 or 2

Step-by-step explanation:

For the lines to be parallel, the lines would need to be the same slope. This means to find the slope of each we would take the difference of the rise over the run.

$\frac{1-3}{-2-k}=\frac{-2}{-2-k}$

and

$\frac{0-k}{1-5}=\frac{-k}{-4}$

To find K, set them equal.

$\frac{-2}{-2-k} = \frac{-k}{-4}\\-k(-2-k) = -2*-4\\2k+k^2=8\\k^2+2k-8=0$

Factor the quadratic and solve for K.

$(k+4)(k-2)=0$

k+4=0 so k=-4

k-2=0 so k=2

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3 years ago

A baby is weighed on a defective scale. He weighed 13 pounds. The baby weighs exactly 10 pounds. What is the percent error?

Eva8 [605]

Answer:

30%

Step-by-step explanation:

The answer is off by 30%, as the scale is off by 3 pounds. 3/10=30

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2 years ago

Cody was given two polnts (5, 1) and(ç, 4), on a line and asked to create a linear equation in standard

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Can you show what Cody put so I can help you

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3 years ago