Which number is the best approximation for π/3 : 1, 1.03, 1.05, or 1.07?
2 answers:
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Given:
The function is
It defined on the interval -8 ≤ x ≤ 8.
To find:
The intervals on which the function is increasing and the interval on which decreasing.
Step-by-step explanation:
We have,
Differentiate with respect to x.
For turning point f'(x)=0.
Now, 0 divides the interval -8 ≤ x ≤ 8 in two parts [-8,0] and [0,8]
For interval [-8,0], f'(x)>0, it means increasing.
For interval [0,8], f'(x)<0, it means decreasing.
Therefore, the function is increasing on the interval [-8,0] and decreasing on the interval [0,8].
The formula to convert degrees Fahrenheit to Celsius is:
Convert 59°F to degrees Celsius.
Add the number 59 in the formula, and solve.
Subtract 32 from 59.
Multiply 5 x 9 = 135, then divide 135/9 = 15.
Therefore 59 °F = 15 °C. The correct option is "D".
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