Solve.A rectangular box with volume 247 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base. Express the cost the box as a function of x.
A. C(x) = 4x + 
B. C(x) = 3x2 + 
C. C(x) = 3x2 + 
D. C(x) = 2x2 + 
Answer: B
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Provide an appropriate response. Graph sin x, sin 2x, and sin 0.5x on the same graph. Compare the graphs. How are they alike and how are they different? Use a graphing calculator.
What will be an ideal response?
Solve the problem.An electric company has the following rate schedule for electricity usage in single-family residences:Monthly service charge $4.93Per kilowatt service charge1st 300 kilowatts$0.11589/kWOver 300 kilowatts$0.13321/kWWhat is the charge for using 300 kilowatts in one month?What is the charge for using 375 kilowatts in one month?Construct a function that gives the monthly charge C for x kilowatts of electricity.
What will be an ideal response?
Write the vector as a sum of scalar multiples of u and v.
a. w1b. w2c. w3d. w4
A. a. w1= u - v;
b. w2 = 
v;
c. w3 = u + v;
d. w4 = v - u
B. a. w1= u + v;
b. w2 = -
v;
c. w3 = u - v;
d. w4 = v - u
C. a. w1= u + v;
b. w2 = 
v;
c. w3 = u - v;
d. w4 = v - u
D. a. w1= u - v;
b. w2 = -
v;
c. w3 = v - u;
d. w4 = u + v
Find angle 
in degree measure.
?
A. 270° B. 275° C. 145° D. 135° E. 245°