Answer: it’s the third one
Step-by-step explanation:
It is
Answer:
2 dollars and 10 cents
Step-by-step explanation: 21 dimes divided by 10 is 2.1 so it will be 2 dollrs and 10 cents.
X can be anything you want as long as it is not 1 or -7. If you have repeated x values with different y values, then it won't be a function.
Answer:
(x, y) = (4, 3)
Step-by-step explanation:
The first equation gives an expression for y that can be substituted into the second equation:
3(2x -5) -x = 5
5x -15 = 5 . . . . . . simplify
5x = 20 . . . . . . . .add 15
x = 4 . . . . . . . . . . divide by 5
y = 2(4) -5 = 3 . . substitute for x in the first equation
(x, y) = (4, 3)
__
Solution by graphing confirms this result.
The y-intercept for the cubic function: 4x^3-3x^2+7 is (0, 7)
Given the polynomial function 4x^3-3x^2+7, the y-intercept of the function occurs where the value of x is zero
Substituting x = 0 into the polynomial function will give;
y = 4x^3-3x^2+7
y = 4(0)^3-3(0)^2+7
y = 0 - 0 + 7
y = 7
Hence the y-intercept for the cubic function: 4x^3-3x^2+7 is (0, 7)
Learn more here: brainly.com/question/19859423
