Answer:
X=-42
Explanation:
1-2x-9=4•19
-8-2x=76
-2x=76+8
-2x=84
X=-42
Answer: Choice B) { f(x)| –∞ < f(x) ≤ 4}
Note that { f(x)| –∞ < f(x) ≤ 4} is the same as { f(x)| f(x) ≤ 4} and that's saying "the output y is at most 4". So the largest y can get is 4. This is the upper limit or ceiling so to speak. The value of y can be any number less than 4.
The range is basically the set of all possible y outputs of a function. It is the set of all y coordinates of the points on the function curve. The highest we can go is y = 4. There is no limit on how low the points can go, so it goes off to negative infinity.
It’s either b or c the hypotenuse is always the longest side
Step-by-step explanation:
x = Iman's money
y = Daphne's money
x = 2y
x - 128 = y - 40
now we use the first equation as identity in the second equation and get
2y - 128 = y - 40
y - 128 = -40
y = $88
x = 2y = $176
these were the starting values.
now, after spending, they have both left
176 - 128 = 88 - 40 = $48