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2 years ago

Add or subtract. Simplify your answer. x+2/x^2−100 + 8/x^2−100

1 answer:

8 0

$\dfrac{x+2}{x^2-100}+\dfrac{8}{x^2-100}=\dfrac{x+2+8}{x^2-100}=\dfrac{x+10}{x^2-10^2}\\\\=\dfrac{x+10}{(x+10)(x-10)}=\dfrac{1}{x-10}\to\fbox{B.}\\\\\\The\ domain:\\D:m\neq0\ and\ m\neq-7\\\\\dfrac{1}{m}=\dfrac{2}{m+7}\ \ \ \ |cross\ multiply\\\\2\cdot m=1\cdot(m+7)\\2m=m+7\ \ \ \ |subtract\ "m"\ from\ both\ sides\\\boxed{m=7}$

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Please help me I need help

vladimir2022 [97]

Idk but I think the answer you are looking for is D

3 0

2 years ago

Read 2 more answers

find the equation for the line that passes through the point (4,-3), and that is perpendicular to the line with the equation y=

Grace [21]

Answer:

Step-by-step explanation:

Answer

Slope between two given points (1,3) and (2,7) is

2−1

7−3

Then perpendicular slope is m

−1

The line equation with this slope is given by

−1

x+c.......(1)

Now, the above line passes through the point (−4,−3)

⇒−3=

−1

×(−4)+c

⇒c=−4

Therefore required line is 4y+x+16=0 (Substitute

′

in (1) and simplify)

7 0

2 years ago

What is the gradient of the line that passes through the points (0,0) and (7,28)?

OLEGan [10]

Answer:

Step-by-step explanation:

and

are two typologies on non-empty set

, then ………………. is topological space.

5 0

2 years ago

Which expression simplifies to 41? Choose all that apply!

Arada [10]

Answer:

None of the expressions is simplified to 41.

Step-by-step explanation:

You have to follow the P.E.M.D.A.S., this is:

P:Parentheses first.

E:Exponent next.

M:Multiplication.

D:Division.

(Multiplication and Division is whichever come first, from left to right)

A: Addition.

S: Subtraction.

(Addition and Subtraction is whichever come first, from left to right).

<u><em>We are going to analyze every option:</em></u>

1. 10+ 2.4 - 1

First we have to solve the multiplication:

$10+ 2.4 - 1=10+8-1$

Now we have to solve the addition and subtraction from left to right:

$10+8-1=18-1=17\neq 41$

This is not a correct answer.

2. 10+2.(4-1)

We have to solve the parentheses first:

$10+2.(4-1)=10+2.(3)$

Now the multiplication and then the addition.

$10+2.(3)=10+6=16\neq 41$

This is not a correct answer.

3. (10+23).4-1

We have to solve the parentheses first:

$(10+23).4-1=(33).4-1$

Now the multiplication and then the subtraction:

$(33).4-1=132-1=131\neq 41$

This is not a correct option.

4. $10+(2^2.4)-1$

We have to solve the parentheses first, in the parenthesis first we have to solve: $2^2$ and then do the multiplication.

$10+(2^2.4)-1=10+(4.4)-1=10+16-1$

Now we have to solve the addition and subtraction from left to right:

$10+16-1=26-1=25\neq 41$

This expression is not a correct option.

Then none of the expressions is simplified to 41.

5 0

2 years ago

PLEASE HELP PLEASE PLEASE PLEASE

sleet_krkn [62]

Answer:

oh no that's tough bro

hope you get through

8 0

1 year ago