3 years ago

Which expression is equivalent to 6a + 15?

Mathematics

1 answer:

12345 [234]3 years ago

5 0

Answer:3(2a+5)

6a+15 divide both sides by 6

a=2.5

Step-by-step explanation:

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Answer:

I think they are congruent

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3 years ago

Use the grouping method to factor this polynomial completely 4x^3+8x^2+3x+6

mart [117]

Answer:

Final answer is $(4x^2+3)(x+2)$ .

Step-by-step explanation:

Given expression is $4x^3+8x^2+3x+6$ .

Now we need to factor that by the method of grouping.

So make two groups having first two terms and then last two term.

Factor each group then factor once more.

$=4x^2(x+2)+3(x+2)$

$=(4x^2+3)(x+2)$

It can't be factored anymore so the final answer is $(4x^2+3)(x+2)$ .

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4 years ago

A boy flying a kite is standing 30 ft from a point directly under the kite. If the string to the kite is 50 ft long, what is the

masha68 [24]

Answer:

250

Step-by-step explanation:

because if he's directly under it that means it's a straight line

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4 years ago

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How long does it take a swimmer to cover 20 m in the pool if the swimmer’s speed is 2.5 m/s? helpppp asap i need it fast ill giv

Mamont248 [21]

Answer: 8 seconds

Step-by-step explanation:

d = rt

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the rate is 2.5

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t = 8

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3 years ago

a triangular sail has a base length of 2.5 meters. the area of the sail is 3.75 square meters. how tall is the sail?

Alik [6]

Area=1/2 times height times base
base=2.5
area=3.75
subsitute

3.75=1/2 times height times 2.5
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divide both sides by 2.5
3=height

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3 years ago

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