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3 years ago

Factor the trinomial below.

Mathematics

2 answers:

Sonja [21]3 years ago

5 0

The answer is B.
Proof:
-7+2=-5
-7*2=-14

Also, when you FOIL it becomes
x^2-7x+2x-14
That simplifies to
x^2-5x-14

noname [10]3 years ago

3 0

Answer:

The factored form is

$x^2-7x+2x-14=(x+2)(x-7)$

Step-by-step explanation:

Given the trinomial

$x^2-5x-14$

we have to factor the above trinomial.

$x^2-5x-14$

By middle term splitting method

$x^2-7x+2x-14$

Taking x common from first two terms and 2 from last two terms

$x(x-7)+2(x-7)$

$(x+2)(x-7)$

which are required factors.

Hence, option B is correct.

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You host a party at your house at the end of it you have 0.5 of a liter of soda left how many millimeters do you have?

Aloiza [94]

We Know, 1 liter = 1000 milliliter
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Hope this helps!

4 0

3 years ago

Read 2 more answers

Need help pls<br>thank you in advance

ira [324]

Answer:

<u />

$\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}$

$\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10$

$\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10$

<h3><u>Standard Deviation</u></h3>

$\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}$

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's. Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

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2 years ago

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schepotkina [342]

N = 10^3 / 10^-3 = 10^6 = 1 million

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4 years ago

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Dimas [21]

Answer:

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Step-by-step explanation: