Use the information in the charts to answer the questions.

Mathematics

2 answers:

Sever21 [200]2 years ago

6 0

I think it’s a because it has something to do with estimated and round your answer

coldgirl [10]2 years ago

5 0

Answer:

Step-by-step explanation:

i just got 21

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Factor completely<br> 12n^3 + 15n^2 + 4n + 5

inessss [21]

The answer is 70n +5

6 0

3 years ago

True or False: If your friend wants to take 6 hours for the 300 mile drive and you want to take 6 hours for the 240 mile drive,

Mila [183]

Answer: I'm pretty sure this is false.

Step-by-step explanation:

If you are driving the same amount of time as your friend, then you travel the same distance, unless you are going different speeds. The person that travels the most amount of distance would be going faster, in this case your friend.

Please don't quote me on this, I only THINK this is right, not 100%

4 0

3 years ago

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Find the coefficient of x^4 in the expansion of (1 + 2x + 3x^3)^10?

Lesechka [4]

$(1+2x+3x^3)^{10}$

The only possible configurations of terms that contribute to generating the $x^4$ term in the expansion are given by the multinomial theorem to be

$\left(\dbinom{10}{6,4,0}(1)^6(2x)^4(3x^3)^0+\dbinom{10}{8,1,1}(1)^8(2x)^1(3x^3)^1\right)x^4$

where

$\dbinom{10}{k_1,\ldots,k_m}=\dfrac{10!}{k_1!\cdots k_m!}$

Simplifying a bit gives a coefficient of

$\dbinom{10}{6,4,0}(2)^4+\dbinom{10}{8,1,1}(2)(3)$
$16\dbinom{10}{6,4,0}+6\dbinom{10}{8,1,1}$
$16\dfrac{10!}{6!4!0!}+6\dfrac{10!}{8!1!1!}$
$16(5\times3\times2\times7)+6(10\times9)=3900$

3 0

3 years ago

Help please I need to do well

makkiz [27]

Answer:

Step-by-step explanation:

x < -5.2

x > 5.2

How do I explain...?

8 0

3 years ago

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