Ask question

Ask question

All categories

3 years ago

9

Adittion of letters with powers

1 answer:

GREYUIT [131]3 years ago

8 0

To add or subtract with powers, both the variables and the exponents of the variables must be the same. You perform the required operations on the coefficients, leaving the variable and exponent as they are.

You might be interested in

Solve the following system of equations by substitution. Show all steps.

Alinara [238K]

Answer:

Given system of equations:

$\begin{cases}f(x)=-x^2+2x+3\\g(x)=-2x+3\end{cases}$

To solve by substitution, equate the equations and solve for x:

$\begin{aligned}f(x) & = g(x)\\\implies -x^2+2x+3 & = -2x+3\\-x^2+4x & = 0\\x^2-4x & = 0\\x(x-4) & = 0\\\implies x & = 0\\\implies x-4 & = 0 \implies x=4\end{aligned}$

Therefore, the x-values of the solution are $x = 0$ and $x = 4$ .

To find the y-values of the solution, substitute the found values of x into the functions:

$f(0)=-(0)^2+2(0)+3=3$

$g(0)=-2(0)+3=3$

$f(4)=-(4)^2+2(4)+3=-5$

$g(4)=-2(4)+3=-5$

Therefore, the solutions to the given system of equations are:

$(0, 3)$ and $(4, -5)$

4 0

3 years ago

The graph below shows data that was collected from a person's commute to work over the course of one month. The equation of the

Mariulka [41]

The speed of the commute would be approximately 34.166 repeating.

3 0

3 years ago

When is my dad coming back from the store with milk?

joja [24]

Answer:

Don't know, it's one of the worlds greatest mysteries.

I know that much cause I waiting for mine to come back too!

Step-by-step explanation:

5 0

3 years ago

Nikita ran a 5-kilometer race in 39 minutes (0.65 of an hour) without training beforehand. In the first part of the race, her av

Brrunno [24]

The answer is 6(0.65-t)

3 0

3 years ago

Read 2 more answers

1 7/8+1/9= <br><br> A.0<br> B.1<br> C.2<br> D.2 1/2

vichka [17]

Answer

the answer would be C

Step-by-step explanation:

6 0

3 years ago