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irakobra [83]
3 years ago
11

Factor the polynomial:3x^3-x^2-15x+5

Mathematics
1 answer:
lina2011 [118]3 years ago
6 0
(x^2-5)(3x-1)
Here's how I got this answer:
I found the GCF for each part of the polynomial.
3x^3 and -15x both contain 3x, and -x^2 and 5 share -1.
I then can divide the polynomial by 3x-1, and I get x^2-5
(Okay, that's not what I really did, but I can solve these on sight and don't remember the proper way to do it.)
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19. Select all the measures that are equivalent to 10 meters.
marissa [1.9K]

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Step-by-step explanation:

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Suppose four students miss an exam. They tell their instructor that they were carpooling to school together on the day of the ex
tia_tia [17]

Answer:

The probability they each indicate the same tire is \frac{1}{64}=0.02

Step-by-step explanation:

There will be 4 cases involved as there are 4 tires.

Probability of choosing front left tire is \frac{1}{4} as there are a total of 4 tires and we need to choose 1.

Now, if all the four students chose the front left tire then the probability is the product of individual probabilities.

Therefore, probability that all 4 students chooses front left tire is:

P(fl)=(\frac{1}{4})^4

Similarly, the probabilities of choosing the remaining 3 tires by all the students would be:

P(fr)=(\frac{1}{4})^4, P(rl)=(\frac{1}{4})^4, P(rr)=(\frac{1}{4})^4

Therefore, the probability that they indicate the same tire is the sum of all these probabilities.

P(\textrm{same tire by all})=P(fl)+P(fr)+P(rl)+P(rr)\\ P(\textrm{same tire by all})=(\frac{1}{4})^4\times 4\\ P(\textrm{same tire by all})=\frac{4}{4^4}=\frac{1}{4^3}=\frac{1}{64}=0.02

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3 years ago
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Vlad1618 [11]

Answer:

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5 0
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Answer:

The answer is E: 7/24ths

Step-by-step explanation:

To figure this problem out you must first change 3/8 and 1/3 to have the same denominator. you can do this by multiplying 3/8 by 3 and 1/3 by 8 which gives you 3/8 = 9/24 and 1/3 = 8/24.

next you need to add these two fractions together to find the difference so 9/24 + 8/24 which equals 17/24.

the last step is to find the missing amount which can be done by subtracting 17 from 24. 24-17 = 7 so your answer is 7/24.

5 0
3 years ago
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