Answer:
8x-13x²-3
Step-by-step explanation:
you first have to work with the negative sign and the brackets by multiplying the negative sign by everything in the second brackets
3x-5-7x²+2-6x²+5x
then group the like terms
3x+5x-7x²-6x²+2-5
8x-13x²-3
I hope this helps
Answer:
2.970600004839 × 10^5
Step-by-step explanation:
First, we add up these 2 numbers.
297,060 + 0.0004839 = 297060.0004839
Then, we convert that into scientific notation.
297060.0004839 = 2.970600004839 × 10^5
Finally, we check if it's right.
10^5 = 100000
2.970600004839 * 100000 = 297060.0004839
Hope this helps.
Answer:
![\boxed {\boxed {\sf A. \ 4x+1}}](https://tex.z-dn.net/?f=%5Cboxed%20%7B%5Cboxed%20%7B%5Csf%20A.%20%5C%204x%2B1%7D%7D)
Step-by-step explanation:
We are asked to find (f+g)(x). The question is essentially asking us to find the sum of f(x) and g(x).
![(f+g)(x)=f(x)+g(x)](https://tex.z-dn.net/?f=%28f%2Bg%29%28x%29%3Df%28x%29%2Bg%28x%29)
We know that f(x) equals 3x-1 and g(x) equals x+2. Substitute the values of the functions in.
![(f+g)(x)=(3x-1)+(x+2)](https://tex.z-dn.net/?f=%28f%2Bg%29%28x%29%3D%283x-1%29%2B%28x%2B2%29)
Combine the like terms.
- 3x and x are like terms (both have the variable "x"
- -1 and 2 are like terms (both without variables, also known as constants)
![(f+g)(x)=(3x+x)+(-1+2)](https://tex.z-dn.net/?f=%28f%2Bg%29%28x%29%3D%283x%2Bx%29%2B%28-1%2B2%29)
![(f+g)(x)=(4x)+(1)=4x+1](https://tex.z-dn.net/?f=%28f%2Bg%29%28x%29%3D%284x%29%2B%281%29%3D4x%2B1)
(f+g)(x) is equal to <u>4x+1</u> and the correct answer is A.
Answer:
B
Step-by-step explanation:
If you're looking for direct correlation, you're looking for a proportion for the second box. So you set the ratio of 2.5:5.5 up as a fraction. 2.5/5.5 and set it equal to the second box 3/x.
2.5 = 3
5.5 x
cross multiply
16.5=2.5x
and divide
16.5/2.5 and you get your answer