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3 years ago

Please help me. I've been stuck all day! I need to factor 10x^2-19x-51

Mathematics

2 answers:

frutty [35]3 years ago

3 0

10X^2 + 15x-34x -51
5x (2x+3)-17(2x+3)
(5x-17) (2x+3)

castortr0y [4]3 years ago

3 0

Well, you first need to look at what goes into 10 and 51.

10:
1*10 = 10
2*5 = 10
not a lot of numbers.

51:
1*51
3*17
not a lot of numbers either.

now, very rarely is it 1 * (whatever the number, so in this case let's use 51.)

We need both numbers from x to multiply to be 10.
The only logical one here is 5*2

So far:
(5x ? ?) (2x ? ?)

Your best safe bet to do for your next one is to not use the 1*57, but the 17*3.

So, now:
(5x ? 17) (2x ? 3)
You need both to be a negative ( negative times a negative is a positive), so...

Your Answer:
(5x - 17) (2x + 3)

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The equation for the table is y = 2.5 x

Step-by-step explanation:

The table is:

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$\frac{97}{100}$ probability that a randomly chosen college student either has a job or lives on campus.

What is probability?

Probability is an area of mathematics that deals with numerical descriptions of how probable an event is to occur or how likely a statement is to be true.
The probability of an event is a number between 0 and 1, where 0 denotes the event's impossibility and 1 represents certainty.

To find the probability that a randomly chosen college student either has a job or lives on campus:

Given: 85% of college students have a job, 54% live on campus, and 42% have a job and live on campus.

So, out of 100 students, 42 students either has a job or live on campus.

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So, 43 + 42 + 12 = 85 + 54 - 42

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