Solve the equation and express the solution in exact form.log4(x + 1) + log4(x - 1) = 2
A. 
B. 
C. {17}
D. {
}
Answer: D
Mathematics
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Use the graph to evaluate the limit.
f(x)
A. -2 B. does not exist C. 1 D. 0
Mathematics
Round the number as indicated.568 to the nearest thousand
A. 1,000 B. 10,000 C. 100 D. 100,000
Mathematics
Find any missing lengths in the similar shapes.
A. x = 4.286 in., y = 3.75 in., z = 6.83 in. B. x = 6.83 in., y =3.75 in., z = 4.286 in. C. x = 0.233 in., y = 3.75 in., z = 0.146 in. D. x = 4 in., y = 3.75 in., z = 6.375 in.
Mathematics
For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk; osculating plane at t = 0.
A. x - y = - 
B. x - y = 0
C. x - y = 
D. x - y = 
Mathematics