How do I vote someone Brainliest? I'm new, and I can't seem to figure it out.

Mathematics

1 answer:

igomit [66]3 years ago

4 0

Answer:

You have to wait until two people answer your question and which ever one you like the most then you mark it as the brainliest!

Step-by-step explanation:

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Factor completely, the expression: 2x^3-2x^2-12x

muminat

$2x^3-2x^2-12x=2x(x^2-x-6)=(*)\\\\------------------------------\\x^2-x-6\\\\a=1;\ b=-1;\ c=-6\\\\\Delta=(-1)^2-4\cdot1\cdot(-6)=1+24=25\\\\\sqrt\Delta=\sqrt{25}=5\\\\x_1=\frac{1-5}{2\cdot1}=\frac{-4}{2}=-2;\ x_2=\frac{1+5}{2\cdot1}=\frac{6}{2}=3\\\\x^2-x-6=(x+2)(x-3)\\\\------------------------------\\\\(*)=2x(x+2)(x-3)$

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3 years ago

All of the following are ways to write 25 percent of N EXCEPT 0.25N 25N/100 1/4N 25N

Olin [163]

The last one would be incorrect. We are looking for PART of whatever N is. Multiply by the whole number 25 is definitely not what we want to do.

Hope I helped!

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3 years ago

Read 2 more answers

Write the percent as a decimal.<br> 1. 66.7%

Sever21 [200]

Answer:

66.7% = 0.667 in decimal form.

Hope that helps!

7 0

2 years ago

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Please someone help me out. I beggggg

bezimeni [28]

Answer:

1. 144 2. 16 3. 1 4. 3x-6

Step-by-step explanation:

So think of this as a function in a function. So you work from the inside to the outside. So for problem 1, we start with f(4)) [you read it "f of 4"] so what is the solution when x = 4, since f(x) means the function of x so f(4) means 'the function of 4' inside f(x).

Since f(x) = 3x then f(4) = 3(4) [notice how you substitute the 4 everywhere you see a letter x]

so f(4) = 12, now you work the next part h(f(4)) since f(4)=12 then h(12)

So take the h(x) function which is h(x) = $x^{2}$ then h(12) = $12^{2}$ so h(12) = 144

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2 years ago

What is 45.13 rounded to the nearest one?

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

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3 years ago