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Mathematics, 21.10.2020 16:01 darkcrystal463
I ONLY HAVE 3 MINUTES LEFT HELP!
1.What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?
A) {0,3,5}
B) {0,4,3}
C) {0,4,5}
D) {8,4,3}
2.
What is the domain of the quadratic function given by f(x) = 2x^2 + 2x - 4?
A) [0, +[infinity])
B) all real numbers
C) all negative real numbers
D) all positive real numbers
3.The barber’s profit each week depends on his charge c per haircut. It is modeled by p = -200c^2+ 2400c – 4700. What is the reasonable domain of this function, given this situation?
A) c ≥ 0
B) all real numbers
C) 0 ≤ c ≤ 2.5
D) 2.5 ≤ c ≤ 9.5
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Answers: 1
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I ONLY HAVE 3 MINUTES LEFT HELP!
1.What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?<...
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