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ASHA 777 [7]
4 years ago
5

Subtracting polynomials

Mathematics
1 answer:
myrzilka [38]4 years ago
7 0

Answer:

-11xy

Step-by-step explanation:

Subtracting a negative means adding.

-14xy - (-3xy) = -14xy + 3xy = -11xy

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B 296 ft

Step-by-step explanation:

28 x 7 = 196 and there you have your answer

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Which of the following is a polynomial?
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3 years ago
a swimming pool is 130 feet long and the length is 3 times the width plus 10 feet. Let x be the width of the pool. how wide is t
kondor19780726 [428]

Answer:Perimeter of a rectangle is 2*the length plus 2*the width

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Step-by-step explanation:

5 0
3 years ago
When testing a hypothesis about a single mean, if the sample size is 51 and the population standard deviation is known, the corr
choli [55]

Answer:

z-statistic

Step-by-step explanation:

We have to identify the correct test statistic to use with the given conditions.

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  • Also, the population standard deviation is known.
  • Thus, we use the z-statistic when testing a hypothesis about a single mean.
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z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

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not triangel Z ill come back with an update

Step-by-step explanation:

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