Use the quadratic formula to solve the equation.7x2 + 8x + 2 = 0
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use the given graph to find the x-intercepts.
A. -4, -1 B. -1, 4 C. -4, 1 D. 1, 4
Mathematics
Find the exact value by using a half-angle identity.cos - 
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation and simplify. Assume all variables represent positive real numbers.
A. 7a2 + a 
+ 
+ 
B. 7a2 + a 
+ 7a 
+ 
C. 7a2 + a 
+ 7a 
D. 7a2 + 
Mathematics
Find the domain of the function of two variables.f(x, y) = ye
A. {(x, y)| x ? 4} B. {(x, y)| x ? -4 and y ? 0} C. {(x, y)| x ? -4} D. {(x, y)| x ? -4}
Mathematics