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masya89 [10]
2 years ago
5

Subtract 5x^2-8x-1 from -(5x^2 -x - 8).

Mathematics
2 answers:
geniusboy [140]2 years ago
8 0

Answer:

−

2

x

2

+

6

x

+

4

Explanation:

(

3

x

2

+

8

x

−

7

)

−

(

5

x

2

+

2

x

−

11

)

(

3

x

2

−

5

x

2

)

+

(

8

x

−

2

x

)

+

(

−

7

+

11

)

−

2

x

2

+

6

x

+

4

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Or if you prefer:

...

.

.

3

x

2

+

8

x

−

7

...

.

.

5

x

2

+

2

x

−

11

−−−−−−−−−−−−

←

Subtract

.

−

2

x

2

+

6

x

+

4

Step-by-step explanation:

have a good day

Jobisdone [24]2 years ago
3 0

Answer:

-10x² - 7x + 7

Step-by-step explanation:

Subtract:

  • -5x² - 8x - 1 - (5x² - x - 8)
  • -5x² - 5x² - 8x + x - 1 + 8
  • -10x² - 7x + 7

Remember: subtracting a negative number is adding that number

-Chetan K

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Troyanec [42]

Answer:

12x+22(y+10)=1240, y=x

small cups=30

large cups=40

Step-by-step explanation:

let x be the number of small cups and y the number of large cups.

-Given that 10 more cups than small cups of lemonade were sold:

12x+22(y+10)=1240

#Before the 10 more were sold, the number of x and y sold were equal>

x=y\\\\\therefore 12x+22(x+10)=1240\\\\12x+22x+220=1240\\\\34x=1240-220\\\\34x=1020\\\\x=30

The number of small cups sold was 30

#Since, the number of large cups was 10 more, y=x+10=30+10=40

7 0
3 years ago
Read 2 more answers
Pls help me solve it!
vekshin1

Answer:

A= 40°

B= 35°

C= 15°

Step-by-step explanation:

Since it says if the triangles were accurately drawn, then A would be the same  degree as Q. C would be the same degree as P. B would be the same degree as R. Since R's degree is missing I knew that a obtuse triangle was 90°. I added 40+15 and got 55. Then i subtracted 90-55 and got 35. So the unknown value would be 35°.

I hope this helps.

3 0
3 years ago
3x/3x-1 + 2/x =1 this is the question
dmitriy555 [2]
X= -1.769292

For math equations like this i use MathPaPa online and they give answers right away!! or you can you math away.
3 0
2 years ago
What’s 1 decade and 8 years minus 9 years
san4es73 [151]
One decade is 10 years+ 8 years is 18 total years
18 minus 9 is 9 years
Hope this helps
6 0
3 years ago
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Ostrovityanka [42]
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