3 years ago

PLEASE HELP ME ASAP SHE SAID IT WASN'T B NOR C!!!!

Mathematics

2 answers:

garri49 [273]3 years ago

7 0

Yeah A might be it…this questions makes no sense if it’s the answer tho

Liula [17]3 years ago

4 0

Answer:

hmm try option a................

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Which point best approximates the square root of 3?

ohaa [14]

It's B.

If $0$ , then it's also the case that $0$ , because multiplying any number $x$ by a number (in this case, also $x$ ) between 0 and 1 scales that number down.

It's not C, because $2^2=4\neq3$ .

It's not D, because $3^2=9\neq3$ .

7 0

3 years ago

Read 2 more answers

What is the second term in the binomial expansion of (2r – 3s)12? –73,728r11s 73,728r11s 608,256r10s2 –608,256r10s2?

ZanzabumX [31]

Solution:

A is the correct option.

Explanation:

We have been given that $(2r - 3s)^{12}$

The $r^{th}$ term of a binomial expansion $(a+b)^n$ is given by

$t_r=^{n}C_{r-1}a^{n-r+1}b^{r-1}$

For the given binomial expansion, we have

$a=2r,b=-3s,r=2,n=12$

On plugging this value in the above formula, we have

$t_2=^{12}C_{2-1}(2r)^{12-2+1}(-3s)^{2-1}\\\\t_2=^{12}C_1 (2r)^{11}(-3s)^{1}\\\\t_2=\frac{12!}{1!11!}(2)^{11}r^{11}(-3)s\\\\t_2=12\cdot (2)^{11}(-3)r^{11}s\\\\t_2=-73728r^{11}s$