3 years ago

What is the answer to this question?

Mathematics

2 answers:

saul85 [17]3 years ago

8 0

B is the correct answer

Sever21 [200]3 years ago

4 0

The answer is B i just had a question like this

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What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

zhuklara [117]

1/2m - 6= 16
1/2m=22
m= 44

6 0

3 years ago

Find the term indecent of x in the expansion of (x^2-1/x)^6

Mars2501 [29]

By the binomial theorem,

$\displaystyle \left(x^2-\frac1x\right)^6 = \sum_{k=0}^6 \binom 6k (x^2)^{6-k} \left(-\frac1x\right)^k = \sum_{k=0}^6 \binom 6k (-1)^k x^{12-3k}$

I assume you meant to say "independent", not "indecent", meaning we're looking for the constant term in the expansion. This happens for k such that

12 - 3k = 0 ===> 3k = 12 ===> k = 4

which corresponds to the constant coefficient

$\dbinom 64 (-1)^4 = \dfrac{6!}{4!(6-4)!} = \boxed{15}$

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3 years ago

If x varies directly with y and x = 3.5 when y = 14, find x when y = 18.

maks197457 [2]

Answer:

x = 4.5

Step-by-step explanation:

there's definitely other ways to solve this, but I used a proportion.

$\frac{3.5}{x} = \frac{14}{18}$

Then you can make this equation:

14x = 3.5 * 18

I solved for it and got 4.5 .

5 0

3 years ago

Vinvika [58]

Answer:

B. 210°

hope it helps

have a nice day

8 0

3 years ago

What is angle P<br> I will mark you.

ruslelena [56]

Angle P is an Acute Angle

6 0

2 years ago