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Aleksandr-060686 [28]
4 years ago
9

Adding and subtracting the given polynomials

Mathematics
1 answer:
Usimov [2.4K]4 years ago
3 0

You have to combine like terms, so the variable (x, y, s, d, c....) and the exponents must be the same in order to combine them.

For example:

x² + x³    Since they don't have the same exponent, you can't combine them

y² + 3y² = 4y²

23x + x = 24x

4. 2s² + 1 + s² - 2s + 1    You can rearrange it if it makes it easier

2s² + s² - 2s + 1 + 1 = 3s² - 2s + 2

5. 5t² - 2t - 1 - (3t² - 5t + 7) Distribute/multiply the - to (3t² - 5t + 7)

5t² - 2t - 1 - 3t² + 5t - 7 = 2t² + 3t - 8

Do the same for #9 and #10, and you should get:

9. 2k² + 5k - 9

10. 6y³ - 7y² - 6y - 12

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Answer:

If the price of the shoes doesn't change and the shipping doesn't change the answer would be 2

Step-by-step explanation:

100 ÷ 32 is 2.8

3 0
3 years ago
A train travels at an average speed of 18 m/s.
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Answer:

28 seconds

Step-by-step explanation:

speed = distance/time

speed * time = distance

time = distance/speed

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4 years ago
Emily is buying new cold weather gear for her family. She pays $100 for 5 pairs of waterproof gloves that each cost the same amo
inysia [295]

Answer:

A) 100 x (4/5)

Step-by-step explanation:

Spent a total of 100 dollars, all being the same price

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For 4 pairs it would be 80.

100 x (4/5) = 80

4 0
2 years ago
A game store charges a monthly membership fee of $7.50, but then the charge to rent a game is only $1.00. Another store has no m
Eduardwww [97]

Answer:

6 games.

Step-by-step explanation:

Given that,

Monthly membership fee of store 1 is $7.5, but then the charge to rent a game is only $1.00

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Cost of first store = $7.50+$1.00n

Cost of another store = $2.00

If cost equals,

$7.50+$1.00n=$2

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Hence, 6 games needed to be rented each month.

6 0
3 years ago
What is the inverse of "f"if f(x)=^3 sqrtx-5
sashaice [31]
<span>y=<span><span>x−5</span><span>−−−−</span>√3

</span></span> <span><span>x=<span><span>y−5</span><span>−−−−</span>√3
 </span></span></span>
8 0
4 years ago
Read 2 more answers
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