Without solving the equation, find the value(s) of the variable that could result in an extraneous solution.
= 1
A. -9, 7
B. -9
C. 9
D. None
Answer: B
Mathematics
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Use the formula for the sum of the first n terms of a geometric sequence to solve.Find the sum of the first 10 terms of the geometric sequence: -6, -18, -54, -162, -486, . . . .
A. -177,164 B. -177,142 C. -177,144 D. -177,107
Mathematics
Solve the problem.Find the equation of the line tangent to the curve y = x ln x2 at the point 
A. y = 2x - 2 B. y = x - 1 C. y = 3x - 3 D. y = 2x + 1
Mathematics
Calculate the mean of the set. Round to the nearest tenth, if necessary.35 ft 42 ft 24 ft 38 ft 21 ft 42 ft 22 ft
A. 32 ft B. 35 ft C. 28 ft D. 42 ft
Mathematics
Solve the problem.Given sin 30° = 
, use trigonometric identities to find the exact value of csc 
.
A. 
B. 
C. 3
D. 
Mathematics