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2 answers:
Answer:
-3.86
Step-by-step explanation:
Replace x with 19.
f(19) = 3/(19+2) - √19-3
f(19)= 1/7 - 4
f(19) = -3.86
Answer:
(-65)/17
Step-by-step explanation:
Evaluate 3/(x - 2) - sqrt(x - 3) where x = 19:
3/(x - 2) - sqrt(x - 3) = 3/(19 - 2) - sqrt(19 - 3)
19 - 3 = 16:
3/(19 - 2) - sqrt(16)
19 - 2 = 17:
3/17 - sqrt(16)
sqrt(16) = sqrt(2^4) = 2^2:
3/17 - 2^2
2^2 = 4:
3/17 - 4
Put 3/17 - 4 over the common denominator 17. 3/17 - 4 = 3/17 + (17 (-4))/17:
3/17 - (4×17)/17
17 (-4) = -68:
3/17 + (-68)/17
3/17 - 68/17 = (3 - 68)/17:
(3 - 68)/17
3 - 68 = -65:
Answer: (-65)/17
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Answer:
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Step-by-step explanation:
Diameter of a Sphere
D = 2 r
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Answer:
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Step-by-step explanation:
Let the number be x,
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Answer:
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Step-by-step explanation: