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Zarrin [17]
2 years ago
6

Simplify.

Mathematics
1 answer:
Sedbober [7]2 years ago
8 0

Answer:

x^2 + 7x- 3/x - 3/x^2 -16

Step-by-step explanation:

Key:  ( ^ ) means exponent

= x^2 + 2x- 3/x -2x^2 + 5x- 3/x^2 -16

= x^2 - 2x^2 + 2x+5x - 3/x- 3/x^2 -16

= x^2 - 2x^2 = -x^2

=  -x^2 + 2x + 5x- 3/x- 3/x^2-16

As you see you add 2x and the 5x and got 7x

= Answer : <u>x^2 + 7x- 3/x - 3/x^2 -16</u>

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Even though the elimination method is easy I still have trouble with it
kicyunya [14]

Answer:

(1,2)

Step-by-step explanation:

x+4y = 9

2x -4y= -6

Add the equations together

x+4y = 9

2x -4y= -6

-------------------

3x +0y = 3

3x=3

Divide by 3

3x/3 = 3/3

x=1

Now find y

x+4y = 9

1 +4y =9

Subtract 1 from each side

4y = 8

Divide by 4

4y/4 = 8/4

y =2

6 0
3 years ago
A printer makes more than 3 copies of a book every hour. How many books can the printer make in 4 hours?
sineoko [7]

Answer:

12

Step-by-step explanation:

4 x 3 is 12

7 0
2 years ago
Read 2 more answers
Which of the following is a solution of the equation 9- 2x=-1?<br> 04<br> 05<br> 04<br> 0-5
8_murik_8 [283]

Answer:

the answer is 5

Step-by-step explanation:

9-2x=-1. you subtract the 9 from both sides, giving you -2x=-10. then you divide the -10 by -2 which gives you 5

8 0
3 years ago
Read 2 more answers
Which equation represents a parabola that has a focus of (0, 0) and a directrix of y = 2?
Genrish500 [490]

Answer: The correct answer is x^2=-4(y-1)

Step-by-step explanation:

Just took the test

7 0
3 years ago
Can someone give me an answer for this?
stealth61 [152]

Answer:

444 adult ticket

763 student ticket

Step-by-step explanation:

let a = number of adult ticket

let s = number of student ticket

s+a=1207

5a+s=2983

get s by itself in the 1st equation so you can plug it into the 2nd

s+a=1207

-a      -a

s=1207-a

5a+(1207-a)=2983

solve for a

4a+1207=2983

-1207      -1207

4a= 1776

444

this is adult ticket amount

subtract this from 1207 to get student amount

1207-444=763

8 0
3 years ago
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