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Nikitich [7]
3 years ago
8

Simplify the polynomial expresion : (5x^2 - 7x +10) +(7x^2 - 11) +(-x^2 +7x- 2)​

Mathematics
1 answer:
MrRa [10]3 years ago
7 0

Answer:

Step-by-step explanation:

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6 mm
Akimi4 [234]
The answer is 20 ashsnenzhwnebdhdjsjdn
7 0
3 years ago
Brianna is playing a video game and loses 3.5 lives. Later she gains 6 more lives. What is the overall change in Brianna's total
fredd [130]
It depends how much she begins with but if she doesn’t begin with any then it’d be 2.5
5 0
3 years ago
Read 2 more answers
Is 800 cm bigger than 8 m
Soloha48 [4]
Convert 8m to cm.

1 m = 100 cm

Multiply:

8 * 100 = 800

So 8 m is equal to 800 cm.

Both of them are equal, so 800 cm is not bigger than 8 m.
4 0
3 years ago
70 points and i’ll give brainliest!! please answer all the questions on the page! must show work and how you got the answer. ple
Bezzdna [24]

6. One variable only so pretty straightforward.

length-x+4

width-x

x+x+4=80

2x=76

x=38

x+4=42

answer: length 42cm and width 38cm

7. Another money problem!

n-# of nickels

q-# of quarters

n=3+q

0.05n+0.25q=2.85

Substitution works like a charm!

0.05(3+q)+0.25q=2.85

0.15+0.05q+0.25q=2.85

0.3q=2.7

q=9

n=3+q

n=3+9

n=12

answer: 9 nickels and 12 quarters

8. One variable situation again.

Ann's money-2b+9

Betty's money-b

b+2b+9=60

3b=51

b=17

2b+9=43

answer: Ann has $43 and Betty has $17.

9. # of red m&m's-x+1

# of blue m&m's-x

x+1+x=13

x=6

x+1=7

answer: 6 blue and 7 red m&m's

10. a-number of adult tickets

s-number of student tickets

a+s=785 ----> a=785-s

5a+2s=3280

5(785-s)+2s=3280

-3s=-645

s=215

a+s=785

a+215=785

a=570

answer: 215 children tickets and 570 adult tickets

3 0
3 years ago
Which expression is equivalent to 4y – 1
uysha [10]
Y-.25 is your answer.
4 0
3 years ago
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