All categories

2 years ago

D is the wrong answer please help :(

Mathematics

2 answers:

Stella [2.4K]2 years ago

8 0

This can be solved by Newton's binomial formula

Tk+1 = (n k) a∧(n-k) b∧k k+1=7 => k=6, n=11 , a=-3x and b=-2y

T7= (11 6) (-3x)∧(11-6) (-2y)∧6 = (11*10*9*8*7)/(1*2*3*4*5) (-3x)∧5 (-2y)∧6

T7= 462 (-3x)∧5 (-2y)∧6

The correct answer is A.

Good luck!!!

Viktor [21]2 years ago

7 0

$\displaystyle T_r=\binom{n}{r-1}x^{n-r+1}y^{r-1}\\\\\\T_7=\binom{11}{6}(-3x)^{11-7+1}(-2y)^{7-1}\\\\T_7=\dfrac{11!}{6!5!}(-3x)^5(-2y)^6\\\\T_7=\dfrac{7\cdot8\cdot9\cdot10\cdot11}{2\cdot3\cdot4\cdot5}(-3x)^5(-2y)^6\\\\T_7=462(-3x)^5(-2y)^6$

You might be interested in

The expression 12(x + 4) represents the total cost of CDs Mei bought in April and May at $12 each. Which property is applied to

s2008m [1.1K]

D because you have to distribute the twelve to complete the equation

7 0

3 years ago

Read 2 more answers

M,H, and G have written more than a combined total of 22 articles. H has written 1/4 as many as M. G has written 3/2 as M. Write

Natalka [10]

Missing part of the question:

Write an inequality to determine the number of articles, M could have written for the school newspaper.

Answer:

The inequality: $11M > 88$

The solution: $M > 8$

Step-by-step explanation:

Given

From the question, we have the following parameters:

$M + H + G > 22$

$H = \frac{1}{4}M$

$G = \frac{3}{2}M$

Required

Determine the inequality to solve for M

Substitute the values for H and G in the inequality:

$M + H + G > 22$

$M + \frac{1}{4}M + \frac{3}{2}M > 22$

Multiply through by 4

$4(M + \frac{1}{4}M + \frac{3}{2}M) > 22*4$

$4M + M + 6M > 88$

$11M > 88$

Divide both sides by 11

$M > 8$

4 0

2 years ago

What is this just tell me what the L AND W ='s please

andreyandreev [35.5K]

You didn't show us much of the page with the question on it,
so we can't be sure of exactly what you're working on in math.

If you're working with things like squares and rectangles, then
'L' and 'W' are often used to represent the Length and Width of
shapes drawn on paper, or even Length and Width of 3D objects
like blocks or boxes.

7 0

3 years ago

Read 2 more answers

How to I write 1/8 without using a fraction bar ( it wants me to use exponents)

oksano4ka [1.4K]

2^-3

two raised to negative three

6 0

3 years ago

Read 2 more answers

A plant grew 1/8 in in the first week of the month and 5/8 in the rest of the month how much did the plant grow for the entire m

Ann [662]

6/8 , just add both fractions together for the total, as they already have common denominators.

4 0

2 years ago