Solve the equation. Use words or set notation to identify equations that have no solution, or equations that are true for all real numbers. 2(x + 6) = 2x - 24
A. ?
B. {0}
C. {x|x is a real number}
D. {24}
Answer: A
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 2sec2(t)i - 2tan(t)j + 9t2k
A. v
= 8i + 4j - 
?k
B. v
= 8i - 4j + 
?k
C. v
= -4j - 
?k
D. v
= -4j + 
?k
Mathematics
Solve the proportion.
= 
A. 0.13 B. 2 C. 20 D. 8.0
Mathematics
Find real numbers a and b such that the equation is true.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Determine whether the given quadratic function has a maximum or minimum value. Then find that maximum or minimum value.f(x) = 2x2 - 4x + 11
A. Maximum, 1 B. Maximum, 9 C. Minimum, 9 D. Minimum, 1
Mathematics