Find the weighted mean of the numbers in the table. Round to the nearest tenth.A telephone company kept track of the calls for the correct time during a 24-hour period for two weeks. The results are shown in the table. 
A. 62.0 calls
B. 61.8 calls
C. 61.6 calls
D. 59.6 calls
Answer: B
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Solve.At Allied Electronics, production has begun on the X-15 Computer Chip. The total cost function is given by src="https://sciemce.com/media/4/ppg__fdf0508192335__f1q186g5.jpg" alt="" style="vertical-align: -4.0px;" />
A. R(x) = 48x - 0.3x2
B. R(x) = 45x - 0.6x2
C. R(x) = 46x + 0.3x2
D. R(x) = 46x - 0.3x2
and the total profit function is given by 
where x represents the number of boxes of computer chips produced. The total revenue function, 
is such that 
Find
Solve. Write the answer in simplest form.A rectangular flower bed in front of a building measures 4
feet by 2
feet. What is the total area of the flower bed? Hint: The area of a rectangle is the product of the length times the width.
A. 13 square feet
B. 8
square feet
C. 11 square feet
D. 12 square feet
A formula used by meteorologists to calculate the wind chill temperature (the temperature that you feel in still air that is the same as the actual temperature when the presence of wind is taken into consideration) is
?
?
where t is the actual air temperature in °F and S is the wind speed in mph.
?
What is the wind chill temperature when the actual air temperature is 52 °F and the wind speed is 30 mph? Please round the answer to the nearest °F
?
T=__________ °F
?
If the temperature is 52 °F, by how much approximately will the wind chill temperature change if the wind speed increases from 30 mph to 31 mph? Please round the answer to the nearest tenth.
?
T=__________ °F
What will be an ideal response?
Solve.The new mural in the student union shown in the sketch below is in the shape of half an ellipse. Find the equation for the ellipse if the center of the ellipse is at point A.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1