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3 years ago

HELP ME PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

SVEN [57.7K]3 years ago

6 0

Answer:

Step-by-step explanation:

-1 up and -3 down i think

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Please help! Solve the following:

mihalych1998 [28]

Answer:

n=10.

Step-by-step explanation:

$\frac{45}{n^{2}-3n-4 }$ - $\frac{3}{n-4}$ = $\frac{2}{n+1 }$

$\frac{45}{n^{2}-3n-4 }$ - $\frac{3(n+1)}{(n+1)(n-4)}$ = $\frac{2(n-4)}{(n+1)(n-4) }$

$\frac{45}{n^{2}-3n-4 }$ - $\frac{3n+3}{n^{2} -3x-4}$ = $\frac{2n-8}{n^{2} -3x-4 }$

45-3n-3=2n-8

45-3+8=5n

n=50/5=10

4 0

3 years ago

What is 9+(-3)=??<br> Someone please help me

Vitek1552 [10]

Answer is 6.

Get this by:

9+(-3)= ?

When you have the # + -# you will subtract. Hence 9 PLUS a negative 3 you get 6.

4 0

3 years ago

Read 2 more answers

In the triangle ABC, the height AN = 24 in, BN = 18 in, AC = 40 in. Find AB and BC.

Basile [38]

Step-by-step Answer:

AN is height, so A is perpendicular to BC. (See image attached).

BN = 18

AN = 24

AC = 40

All as labeled.

ABN is a right triangle, with AB = sqrt(18^2+24^2)=sqrt(324+576)=30

ACN is a right triangle, with CN = sqrt(40^2-24^2)=sqrt(1600-576) = 32

BC = BN + NC = 18 + 32 = 50

8 0

4 years ago

If bethanie and Mike both take eight minutes to drive to work, which person drives to the higher elevation

just olya [345]

It would depend if they are going to the same work or not.

6 0

3 years ago

Witch of the following statements are true

Sliva [168]

It would be B, although it could be different if there’s a picture above

4 0

3 years ago

HELP ME PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​

HELP ME PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!