$\left\{\begin{array}{ccc}y=4x-5\\y=3x+7&|\text{change the signs}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}y=4x-5\\-y=-3x-7\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad0=x-12\qquad\text{add 12 to both sides}\\\qquad\boxed{x=12}\\\\\text{Substitute the value of x to the first equation}\\\\y=4(12)-5\\y=48-5\\\boxed{y=43}\\\\Answer:\ x=12\ and\ y=43.$

7 0

4 years ago

Let p(x)=x^3+15x^2-8x+2. What is the remainder when p(x) is divided by x-2?

Oduvanchick [21]

Answer:

Step-by-step explanation:

Using synthetic division, the zeros goes into the box, which would be -1

-1 | 1 -3 -1 24

-1 4 -3

1 -4 3 21

The remainder is 21

4 0

3 years ago

Choose the equation that represents the solutions of 0 = 0.25x4 - 8x.

Andre45 [30]

The answer is 97 and the other answer is 97 thank you and hope this helps

5 0

3 years ago