2 years ago

Please help answer all of them! for BRAINLIEST and more!! (Question In picture)

Mathematics

1 answer:

ohaa [14]2 years ago

4 0

Answer:

A)-7y^3-3y^2-2y-8

B)-7x^3y^3-12x^2y^2-xy

C)2xy^3+3xy^2-5

A)14x^2

B)15a^2+30ab

Step-by-step explanation:

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What the difference 7 7/8 and 3 1/2

zalisa [80]

Answer:

35/8 reduced is 4 3/8

Step-by-step explanation:

just subtract 7 7/8 and 3 1/2 to get 35/8 and reduce it to 4 3/8

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3 years ago

The top of a molehill is 4in above ground level.

Bad White [126]

Answer:

13 inches

Step-by-step explanation:

<u>The distance is the difference in top and bottom positions:</u>

4 - (-9) = 4 + 9 = 13 inches

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3 years ago

Jack is collecting pumpkins for the town parade. 45 pumpkins are orange, 27 pumpkins are white, and 18 pumpkins are green. What

Step2247 [10]

Answer:

I would say about 42% or so luvs hope I helped

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2 years ago

Hello please help me on these questions!

Tatiana [17]

1.) 1.19
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5 0

3 years ago

A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team. How many diff

lys-0071 [83]

Answer:

The team can be formed in 756 different ways

Step-by-step explanation:

This is a combination problem since we are to select a set of people from a group. Combination has to do with selection.

for example, if r number of object is to be selected from a pool of n objects, this can be done in nCr number of ways.

$nCr = \frac{n!}{(n-r)!r!}$

Now If A company has 7 male and 9 female employees, and needs to nominate 2 men and 2 women for the company bowling team, then this can be done in the following way;

$7C2 * 9C2$

$7C2 = \frac{7!}{5!2!} \\= \frac{7*6*5!}{5!*2} \\= 7*3\\= 21ways\\\\similarly;\\\\9C2 = \frac{9!}{7!2!}\\9C2= \frac{9*8*7!}{7!*2} \\9C2 = 9*4\\9C2 = 36$

7C2 * 9C2 = 21*36

= 756

The team can be formed in 756 different ways

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3 years ago