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3 years ago

Can someone please assist me on this problem, any help would be appreciated.

Mathematics

1 answer:

sashaice [31]3 years ago

3 0

Answer:

11x^2 -4x + 3

Step-by-step explanation:

(x^2-5x+7)+(10x^2+x-4)

= x^2-5x+7+10x^2+x-4

= 11x^2 -4x + 3

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Suppose f(x)=6x-2 and g(x)=2x+4). Find each of the following functions.

makvit [3.9K]

a. (f+g)(x) = 8x+2

b. (f-g)(x) = 4x-6

Step-by-step explanation:

Given

$f(x) = 6x-2\\and\\g(x)=2x+4$

a. (f+g)(x)

$(f+g)(x)=f(x)+g(x)\\=6x-2+(2x+4)\\=6x-2+2x+4\\=6x+2x-2+4\\=8x+2$

b. (f-g)(x)

$(f-g)(x)=f(x)-g(x)\\=(6x-2)-(2x+4)\\=6x-2-2x-4\\=6x-2x-2-4\\=4x-6$

Hence,

a. (f+g)(x) = 8x+2

b. (f-g)(x) = 4x-6

Keywords: Functions

Learn more about functions at:

#LearnwithBrainly

8 0

3 years ago

If the area of a rectangle is 162 square meters, what is the length of the base

Contact [7]

Answer:

If the long side is down then the length of the base is 81 sq.m.

If the short side is down then the length of the base is 20.25 sq.m.

Step-by-step explanation:

162/4 is 40.5 that means if this were a square it would be 40.5 sq.m. On each side, if the base is longer you multiply 40.5 by 2 (or whatever youre supposed to honestl) and if the base is shorter you divide by 2 (or whatever you were supposed to)

7 0

3 years ago

Simplified -\15| How do you simplify this ?

Zina [86]

Answer -15 because it would be 15 but the negative would be turned into a negative again

4 0

2 years ago

What is the inverse of the function below? f(x) = -6x + 4

babunello [35]

F^-1(x)=2/3-x/6 hope this works

7 0

3 years ago

For the graphed function f(x) = (2)x + 2 + 1, calculate the average rate of change from x = −1 to x = 0. a graph of an exponenti

Paladinen [302]

Answer:

2 is the average rate of change of the function $f(x)=2^{x+2}+1$ from $x=-1$ to $x=0$ .

Step-by-step explanation:

I assume you meant $f(x)=2^{x+2}+1$ based off the points.

We are given that $(-1,3)$ and $(0,5)$ are points on this curve.

We are asked to find the average rate of change (the slope) from $x=-1$ to $x=0$ .

We have the two points needed to find the slope.

We just need to line them up and subtract vertically then put 2nd difference on top of 1st difference.

$(-1,3)$

$(0,5)$

--------------------Subtracting!

$-1,-2$

So the slope is $\frac{-2}{-1}=2$ .

3 0

3 years ago

Read 2 more answers