Use De Morgan's law to write an equivalent statement for the sentence. It is false that cats are lazy or dogs are not friendly.
A. Cats are lazy and dogs are friendly.
B. Cats are not lazy or dogs are friendly.
C. Cats are not lazy or dogs are not friendly.
D. Cats are not lazy and dogs are friendly.
Answer: D
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Graph the exponential function whose equation is given. Start by using -2, -1, 0, 1, and 2 for x and finding the corresponding values for y.f(x) = 3x
A. 
B. 
C. 
D. 
Sketch the graph of the function and find the domain and range.f(x) = (x - 2)2 - 1
A. domain: all real numbers
range: y ? -1
B. domain: all real numbers
range: y ? 2
C. domain: all real numbers
range: y ? -2
D. domain: all real numbers
range: y ? -1
Translate the phrase into a mathematical expression and then evaluate it.Sixty divided by five, minus eight
A. 
- 8; 4
B. 
+ 8; 20
C. 
; 20
D. 
; 4
The 15th term of an arithmetic sequence is 105, and the first term is -7. Find the common difference. ?
A. 8 B. -10 C. 26 D. -8 E. 10