A function is a rule that assigns each value of the independent variable to exactly ONE value of the dependant variable
Answer:
4x^2 - 6x^2 -6x + 3x +3 - 4
Step-by-step explanation:
The terms here involve x^0, x, x^2.
Write the x^2 terms first: 4x^2 - 6x^2;
then write the x terms: -6x + 3x; and
then write the constants: 3 - 4
and so we have, in descending powers of x,
4x^2 - 6x^2 -6x + 3x +3 - 4
Let x be the first number and y be the second.
2x + y = 25
3x - y =20
1) Add them together.
5x = 45
x = 9
2) Solve for y.
2(9) + y = 25
y=7
3) Check your work on the other equation.
3(9) - (7) = 20
27 - 7 =20
20 = 20
Answer:
Last equation 350 - 170 - 120 = r
Step-by-step explanation:
So if she ordered 350, and we already know 170 + 120 for black and blue pens. So we add 170 and 120 to get 290. So we subtract 290 from 250 and get 60. So the equation is 350 - 170 - 120 = r. Brainliest please!
