Given are the first three terms of a sequence that is arithmetic. Find a1 and d.9, 14, 19
A. a1 = 9; d = 3.75
B. a1 = 9; d = 15
C. a1 = 9; d = 9
D. a1 = 9; d = 5
Answer: D
Mathematics
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Solve the equation.5(8 - d) = 6d + 10 - d
A. d = 8 B. d = 3 C. d = 6 D. d = 0
Mathematics
Provide an appropriate response. Solve the following quadratic using any method: 25x2 = 81.
A. x = 
B.
x = 1.8
C.
x = -1.8, 1.8
D. x =
, -
Mathematics
Let 
, and evaluate the expression.
?
?
A. -9 B. -3 C. 3 D. -8
Mathematics
Simplify.
A. 
B. 
C. x8
D. 
Mathematics