3 years ago

* Write the equation in standard form using integers. y=-4/5x+3

Mathematics

1 answer:

svetoff [14.1K]3 years ago

6 0

Answer:

4x + 5 y = 15

Step-by-step explanation:

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marta [7]

Answer:

(3,2)

Step-by-step explanation:

Let's solve this via elimination method:

$\begin{cases} x+y=5\\x-y=1\end{cases}$

By subtracting equation 2 from equation one we obtain:

$\begin{cases} x+y=5\\-(x-y=1)\end{cases}\\\\0x+2y=4\\\\y=2$

Next we can use any equation either 1 or 2 to determine what x is, I'll use equation 1. Let y=2 and so:

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Therefore the solution for the system of equations is:

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3 years ago

If f(x) = 2x2 + 2 and g(x) = x2 - 1, find (f - g)(x)I

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Answer:

C. x^2 + 3

Step-by-step explanation:

Substitute for f(x) and g(x) and simplify.

(f -g)(x) = f(x) -g(x)

(f -g)(x) = (2x^2 +2) -(x^2 -1) = 2x^2 +2 -x^2 +1

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