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Anettt [7]
3 years ago
11

What is 15.7 rounded to the nearest tenth? Sorry, I'm bad at math XD.

Mathematics
2 answers:
Artyom0805 [142]3 years ago
6 0
15.7 is already rounded to the nearest tenth.

Places:

... | tens | ones | decimal point | tenths | ...

Which for 15.7 is

... | 1 | 5 | . | 7 | ...

So you're good.
ale4655 [162]3 years ago
5 0
15.7 is already to the nearest tenth
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Is (x-1) a factor of 2x3 - 15x2 + 22x + 15
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Answer:

Step-by-step explanation:

If x - 1 is a factor of the cubic, then 1 should result in 0 when you put it in the cubic for x. Does it?

f(1) = 2(1)^3 - 15(1)^2 + 22(1) + 15

f(1) = 2 - 15 + 22 + 15

f(1)= 24.

No the result is not zero. So x - 1 is not a factor.

However there must be something that makes this cubic go to zero. The easiest way to find it is to graph it.

The numbers that do make this zero are -0.5, 3, 5

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3 years ago
What is the value of x????
inysia [295]

If QR is a median, then:

\dfrac{NO+MP}{2}=QR

We have NO = 30, MP = 9x - 42 and QR = x + 15. Substitute:

\dfrac{30+9x-42}{2}=x+15\qquad\text{multiply both sides by 2}\\\\9x-12=2x+30\qquad\text{add 12 to both sides}\\\\9x=2x+42\qquad\text{subtract 2x from both sides}\\\\7x=42\qquad\text{divide both sides by 7}\\\\\boxed{x=6}

<h3>Answer: A. 6</h3>
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I will give you branilest!
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Answer:20 packets

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If p = 20 and q = 30, evaluate the following expression:<br> p+q/5
svetlana [45]

Answer:

Step-by-step explanation:

Plug in: \frac{20+30}{5} = \frac{60}{5} = 12

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Step-by-step explanation:

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