MATHEMATICS HIGH SCHOOL

Factor completely 14bx2 − 7x3 − 4b + 2x.(2b + x)(7x2 + 2)

(2b − x)(7x2 − 2)

(2b + x)(7x2 − 2)

Prime

Answers

Answer 1
Answer:

Answer:

(2b-x)(7x^2-2)

Step-by-step explanation:

We have to factor the expression 14bx^2-7x^3-4b+2x

We apply the method of grouping to factor it.

Make groups

(14bx^2-7x^3)+(-4b+2x)

Take GCF

7x^2(2b-x)-2(2b+x)

Finally, factored out the common factor

(2b-x)(7x^2-2)

The factored form of the given expression is

(2b-x)(7x^2-2)
Answer 2
Answer: hello,

14bx²-7x^3-4b+2x= -7x^3+14bx²+2x-4b
=-7x²(x-2)+2(x-2b)
=(x-2b)(-7x²+2)
=(2b-x)(7x²-2)

answer 2

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Solve 12ds/w=CD for w.

Answers

divide 12 on both sides
ds/w=cd/12
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w=cd/12ds

Select all that apply.Which statements are correct?


Percent of change is positive if the change is an increase.
Percent of change is positive if the change is a decrease.
Percent of change is negative if the change is an increase.
Percent of change is negative if the change is a decrease.

Answers

Correct statements are the following:

Percent of change is positive if the change is an increase.
Percent of change is negative if the change is a decrease.

Answer:

the other person is correct!!!

Step-by-step explanation:

Fran brings home $225 per week working 15 hours of which she is able to save $40. Fran wants to have $1,400 saved at the end of 20 weeks. She may work up to 18 hours per week if she wants. She can save all of the money earned working the extra hours. Which of the following statements is true?a.
Fran will meet her goal working 15 hours per week.
b.
Fran must work 17 hours per week to meet her goal.
c.
Fran must work 18 hours per week to meet her goal.
d.
Fran will not be able to reach her goal.

Answers

Fran will have a base amount of $800 saved at the end of the 20 weeks assuming she continues to get at least 15 hours and her expenses don't increase (40x20 =800). At a net pay rate of $15 per hour (225/15=15), she will need to work an additional two hours per week for a total of 17 hours to earn the $600 needed to meet her goal. [15x2= 30, 30x20=600]

20000=15000(1.072)^t

Answers


                                                 20,000 = 15,000 (1.072)^t

Divide each side by 15,000 :             4/3 = (1.072)^t

Take the log of each side:          log(4/3) = t log(1.072)

Divide each side by  log(1.072):     t = log(4/3) / log(1.072)

                                                      0.12494 / 0.03019 = 4.138  (rounded)




A researcher calculates the expected value for the number of girls in three births. He gets a result of 1.5. He then rounds the result to 2, saying that it is not possible to get 1.5 girls when three babies are born. Is this reasoning correct? Explain.

Answers

yes his reasoning is correct because you can not cut a person in half. you can not be born with half of a body so you would have to round your result to the nearest whole number which in this case is 2 so he would technically be correct

A tablet weighs 1.23 pounds. What is its weight written as a mixed number?

Answers

The weight that should be written as the mixed number should be 1 (23)/(100)

Given that,

  • The table weight is 1.23 pounds.

Here we need to find out the weight that should be written as the mixed number.

So first we have to understand what is the mixed number i.e. described below.

A mixed number should be the mix of the whole number & the fraction.

So, the weight written as the mixed number should be 1 (23)/(100)

Learn more about the number here: brainly.com/question/17429689
If a tablet weighs 1.23 pounds, the weight written as a mixed number would be, 1 as the whole number and 23 is in the hundreds place, so you would write, 1 and 23/100.
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