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3 years ago

Have a student write the answer to the essential

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

3 0

What is the essential?

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PLEEEEEEEAAAAAAASSSSSSSSSSEEEEEEEEEEE help me!!!!!!!!!!

defon

Answer:

$\boxed{\sf \ \ \ \dfrac{18}{(x-7)(x+12)(x+30)} \ \ \ }$

Step-by-step explanation:

hello,

first of all we will study the quadratic expressions

we can write that, (the different answers provide good clues :-) )

$x^2+5x-84=(x-7)(x+12)$

and

$x^2+23x-210=(x-7)(x+30)$

so first of all as we cannot divide by 0 we need to take x different from 7, -12 and -30 and then we can write

$\dfrac{1}{x^2+5x-48}-\dfrac{1}{x^2+23x-210}=\dfrac{1}{(x-7)(x+12)}-\dfrac{1}{(x-7)(x+30)}\\\\=\dfrac{(x+30) -(x+12)}{(x-7)(x+12)(x+30)}=\dfrac{x+30-x-12}{(x-7)(x+12)(x+30)}\\\\=\dfrac{18}{(x-7)(x+12)(x+30)}$

hope this helps

7 0

3 years ago

Justin picked out 300300300 dollars worth of clothing (regularly priced) at Mary's Department Store. As part of a promotion, he

swat32

hjouStep-by-step explanation:

m lll,

8 0

3 years ago

Brainly do your thing i need help

Zolol [24]

Answer:

x=56

Step-by-step explanation:

As ∠FAC and ∠EAD are vertical angles, the measure of their angles must be the same. This means that ∠ $A=60$

Now, we can use the fact that the line EAC would have a measure of 180 degrees.

Due to this, we can add up all of the angle on one side of that line to find x.

$60+64+x=180\\\\124+x=180\\\\x=56$

6 0

3 years ago

Read 2 more answers

What is the probability that the sum of the two dice is greater on the second roll?

barxatty [35]

3 out of 6 because it's a 50 50 chance cuz there 6 sides with and 3 numbers r grater and 3 r less

3 0

3 years ago

PLESSE HRLP IM BEGGING U ILL MARK U

Andrew [12]

Answer:
y = 1/2x + 14

Explanation:
y = 1/2x + 14 is perpendicular to y = -x = 18 and passes through the slope (-6, 11)

Tip:
Desmos (the app) helps a lot with graphing problems.

7 0

2 years ago