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Iteru [2.4K]
3 years ago
5

Subtract -5x^2+2 from 9x^2-2x

Mathematics
1 answer:
ozzi3 years ago
3 0

Answer:

2(2x^2 - x + 1)

Step-by-step explanation:

you write you problem 9x^2 - 2x - 5x^2 + 2 = 2(2x^2 - x + 1)

You collect the like terms by subtracting their coefficients

(9-5)x^2

Subtract the numbers

4x^2

4x^2 - 2x + 2

Factor out 2 from the expression

2(2x^2 - x + 1)

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A shirt costs $5 less than a sweater. Together they cost<br> $25. How much does the sweater cost?
Aleksandr-060686 [28]

Answer:

Shirt: $7.5

Sweater: $17.5

Step-by-step explanation:

25/2=12.5

Shirt is 5 less than Sweater

12.5-5=7.5

Add 5 to sweater cost

12.5+5=17.5

Shirt=7.5 Sweater=17.5

17.5+7.5=25

6 0
3 years ago
How can you write 200,000 using a whole number and a power of 10
jeka94

Hey!

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

Question Explanation:

In other words you can write 200,00 using a whole number and a power 10 using scientific notation!

In scientific notation you want a number less than 10 multiplied by 10 to the power of a number.

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

Solution:

200,000 / 10 = 20,000

20,000 / 10 = 2,000

2,000 / 10 = 200

200 / 10 = 20

20 / 10 = 2

I divided 200,000 by 10 five times to get a number less than 10.

So, 5 is going to be the exponent.

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Answer:

2 x 10^5

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Hope This Helped! Good Luck!

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3 years ago
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What is the x-coordinate of the soultion y=x+2 y=-x+6
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