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Artyom0805 [142]
3 years ago
14

Choose the correct simplification of the following: (2x^2 + x - 1) - (x^2 + 3x – 5)

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

x^2 - 2x + 4

Step-by-step explanation:

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A group of 2 adults and 4 children pay $95 for admission to a water park. A
il63 [147K]

Answer:

2a + 4c = 95

3a +7c =155

Step-by-step explanation:

2a + 4c = 95

3a +7c =155

8 0
3 years ago
Help me with my math homework
saul85 [17]
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2. √5
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6 0
2 years ago
Let u = <6, -9>, v = <1, -4>. Find u - v.
melamori03 [73]
To subtract vectors, subtract the x coordinates together. Do the same for the y coordinates as well.

In terms of a formula if we had the vectors u and v such that
u = <a,b>
v = <c,d>
then 
u - v = <a-c, b-d>

Let's use that to get...
u - v = <6,-9> - <1,-4>
u - v = <6-1,-9-(-4)>
u - v = <6-1,-9+4>
u - v = <5,-5>
----------------------
Answer: A) <5,-5>

3 0
2 years ago
Perform the indicated operation to write given polynomial in standard form: (x^3+2x^2 − 3x − 1) +(4 − x − x^3)
Rzqust [24]

Answer:

\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-4x+3

Step-by-step explanation:

To write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to write.

To add the polynomials you need to:

Remove parentheses

\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=x^3+2x^2-3x-1+4-x-x^3

Group like terms

\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=x^3-x^3+2x^2-3x-x-1+4

Add similar elements

\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-3x-x-1+4\\\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-4x-1+4\\\left(x^3+2x^2-3x-1\right)+\left(4-x-x^3\right)=2x^2-4x+3

5 0
3 years ago
Kayla is going to invest in an account paying an interest rate of 2.9% compounded
12345 [234]

Answer:

the answer is 48m^2!

Step-by-step explanation:

6 0
3 years ago
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