Determine whether each sentence is true or false.
a. Every square is a rectangle.b. Every square is a parallelogram.
A. a true, b false
B. a false, b true
C. a false, b false
D. a true, b true
Answer: D
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Solve the problem.A cellular phone plan had the following schedule of charges:Basic service, including 100 minutes of calls$20.00 per month2nd 100 minutes of calls$0.075 per minuteAdditional minutes of calls$0.10 per minuteWhat is the charge for 200 minutes of calls in one month?What is the charge for 250 minutes of calls in one month?Construct a function that relates the monthly charge C for x minutes of calls.
What will be an ideal response?
The function f is one-to-one. Find its inverse.f(x) = 5x + 7
A. f-1(x) = 
B. f-1(x) = - 
C. f(x) = 
D. f-1(x) = 
Simplify by rationalizing the denominator. Write your answer in a + bi form.
A. - 
- 
i
B. - 
- 
i
C. 
- 
i
D. 
- 
i
Convert the polar equation to a rectangular equation.r = -2 cos ?
A. x = -2
B. x2 + y2 = 2
C. 
2 + y2 = 4
D. 
2 + y2 = 1