Solve the quadratic equation for complex solutions.x2 + x + 8 = 0
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Determine if the equation is an identity.cos(x - y) cos y - sin(x - y) sin y = cos y
A. Not an identity B. Identity
Mathematics
Evaluate the logarithm.ln e9
A. 9 B. 9 ln e C. 1 D. e9
Mathematics
Find the absolute value.
A. 
B. 0
C. - 
D. 
Mathematics
After determining whether the variation model below is of the form 
or 
, find the value of k.
x
154
161
168
175
182
y
66
69
72
75
78
A. 
B. 
C. 
?
D. 
E. 
Mathematics