Answer:
(9x -2)(9x +2)
Step-by-step explanation:
Each of the terms in the difference is a perfect square, so the "perfect square trick" applies. The factors are the sum and difference of the square roots of the given terms.
81x² - 4 = (9x +2)(9x -2)
B) 1 ≤ ƒ(x) ≤ 6
C) –2 ≤ x ≤ 2
D) –2 ≤ ƒ(x) ≤ 2
Answer:
Option (C)
Step-by-step explanation:
Domain of a function is represented by the 'x' values on the graph.
Similarly, y-values of a function represents the range.
Therefore, options (B) and (D) will not be the answer as they are representing the function values or y-values.
Given segments starts form x = -2 and ends at x = 2 (Including these points).
Therefore, Domain of the segment will be [-2, 2] Or -2 ≤ x ≤2
Option (C) will be the correct option.
Answer:
B) 1 ≤ ƒ(x) ≤ 6
Step-by-step explanation:
this is the right answer I got it right on usa test prep
Answer: p^2 = 25 ^2 = 625
Coe-.00012t
where co is the initial anong . estimate the age of a sample of
wood discoverd by a arecheologist if the carbon level in the sample
is only 20% of it orginal carbon 14 level.
Answer:
The age of this sample is 13,417 years.
Step-by-step explanation:
The amount of carbon 14 present in a sample after t years is given by the following equation:
Estimate the age of a sample of wood discoverd by a arecheologist if the carbon level in the sampleis only 20% of it orginal carbon 14 level.
The problem asks us to find the value of t when
So:
The age of this sample is 13,417 years.
10xy=W
Answer:
x=W/10y
Step-by-step explanation:
Answer:
P = 20 ft
h = 2 ft
B = 10.56 ft²
Step-by-step explanation:
P = 8.8 + 8.8 + 1.2 + 1.2 = 20 ft
h = 2 ft
B = 1.2 x 8.8 = 10.56 ft²
Answer:
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Step-by-step explanation: