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stealth61 [152]
2 years ago
10

What is the product of the binomials (3x+1) (2x-4)

Mathematics
2 answers:
vekshin12 years ago
6 0

Answer:

6x^2 -10x - 4

Step-by-step explanation:

There are many ways to solve this. For this problem I will use the FOIL method.

F - first

O - outer

I - inner

L - last

Multiply the first term in each parenthesis ---> 6x^2

Multiply the outer terms in each parenthesis ---> -12x

Multiply the inner terms in each parenthesis ---> 2x

Multiply the last terms in each parenthesis ---> -4

Combine these together:

6x^2 -12x + 2x - 4

Combine like terms:

6x^2 -10x - 4

^ And that is our final answer!

Vlad1618 [11]2 years ago
4 0

Answer:

6x^{2} -10x - 4

Step-by-step explanation:

6x^{2} - 12x + 2x -4

6x^{2} -10x - 4

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3 years ago
Of the 10,000 participants in the Cooper Run/Walk, 42% were runners and one-third of the runners were female. Sally, a female ru
Aleks [24]

Answer: 140 female runners

Step-by-step explanation:

First find out the number of runners:

= 42% * 10,000

= 4,200 runners

Then find out the number of female runners:

= 4,200 * 1/3

= 1,400 female runners

Sally finished faster than 90% of the female runners which means that 10% finished faster or at the same time as her.

= 10% * 1,400

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2 years ago
What is a factors for -12
Rzqust [24]

Answer:

4-16= -12

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Step-by-step explanation:

frognj;ghgrue;jnvougheruo'gln

4 0
2 years ago
Can someone answer this question please?
Keith_Richards [23]

Part (a)

<h3>Answer:  0.2</h3>

----------------------------------

Work Shown

It costs $15 to rent a bike for 3 hours. We can write the following ratio below

15 dollars : 3 hours

To represent the connection of the two concepts (dollars connecting with hours)

We want the "15 dollars" to turn into "1 dollar". This is because the phrasing "per dollar" really means "per 1 dollar".

Divide both sides of the ratio by 15 to achieve this goal.

15 dollars : 3 hours

15/15 dollars : 3/15 hours

1 dollar : 1/5 hours

1 dollar : 0.2 hours

0.2 hours : 1 dollar

So we get 0.2 hours per dollar.

As a side note, 0.2 hours = 0.2*60 = 12 minutes.

========================================================

Part (b)

<h3>Answer:  3.38</h3>

----------------------------------

Work Shown

27 pages : 8 minutes

27/8 pages : 8/8 minutes

3.375 pages : 1 minute

3.38 pages : 1 minute

I'm dividing both parts of the original ratio by 8 to turn "8 minutes" into "1 minute" (due to the phrasing "per minute"). Don't forget to round to 2 decimal places.

3 0
3 years ago
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