Answer:
lesser x = -6
greater x = 12
Step-by-step explanation:
(x - 3)^2 - 81 = 0
(x - 3)^2 = 81
x - 3 = +/- 9
x - 3 = 9 or x - 3 = -9
x = 12 or x = -6
Answer:
6 13/28
Step-by-step explanation:
Hope this helps!
Answer:
Step-by-step explanation:
Please use " ^ " to denote exponentiation: f(x) = x^2 + 4x - 21.
This function has a graph which is a parabola that opens up.
Its vertex is found by completing the square:
x² + 4x + 4 - 4 - 21, or
(x + 2)² - 25
Comparing this to the standard equation
(x - h)² + k, we see that h = -2 and k = -25.
Thus, the vertex (and the minimum of this function) is (-2, -25).
Thus, the range is [-25, ∞ ). This being a polynomial function, it has no restrictions on the domain: the domain is (-∞, ∞ )
The first number after the decimal point is the tenths place, making the next one (2nd) the hundredths.
We have to round to the hundredths, so we look at the next one over to the right. Because 6 is greater than or equal to 5, (greater than) we have to round up. That makes the 7 an 8, and the 6 disappears. So we get our final answer:
1.18
When combining like terms, always go from left to right.
7x-8x = -1x
9y-4y-5y=0
answer is -1x
