Which algebraic property does the expression 12 + 0 = 12 represent?
2 answers:
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According to the question given, (fg)(x) is
Which is not given in the options.
Step-by-step explanation:
We are given:
We need to find (fg)(x)
Solving:
According to the question given, (fg)(x) is
Which is not given in the options.
Keywords: Composite functions
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Answer:
<u>Step-by-step explanation:</u>
NOTE: Neither the Trapezoidal Rule or Reimann Sums can be used without the number of rectangles (n) you are separating the interval into. Besides, they only provide an estimate. If you want the EXACT area, you must use integration.
Answer:
a). 59.049°C
b). 2.1179 seconds
Step-by-step explanation:
Expression representing the final temperature after decrease in temperature of the metal from 100°C to T°C is,
T =
where x = duration of cooling
a). Temperature when x = 5 seconds
T = 100(0.9)⁵
= 59.049
≈ 59.049°C
b). If the temperature of the metal decreases from 100°C to 80°C
Which means for T = 80°C we have to calculate the duration of cooling 'x' seconds
80 =
0.8 =
By taking log on both the sides
log(0.8) =log[]
-0.09691 = x[log(0.9)]
-0.09691 = -0.045757x
x =
x = 2.1179
x ≈ 2.1179 seconds