Solve. Check for extraneous solutions.
- 
= 1
A. {3, -1}
B. {-3, -1}
C. {3}
D. ?
Answer: A
Mathematics
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Perform the indicated operations. Express the result in polar form.
+ 
A. 
B. 
C. 
D. 
Mathematics
Determine whether the vectors 
and 
are equivalent.A(1, 5), B(6, 14), C(1, 8), and D(7, 17)
A. Equivalent B. Not equivalent
Mathematics
Write a formula for the nth term of the arithmetic sequence. Use the formula to find the indicated term of the sequence.a = 78, d = -10;
Find a6.
A. an = 88 - 10n, a6 = -42 B. an = 78 - 10n, a6 = -42 C. an = 78 - 10n, a6 = 28 D. an = 88 - 10n, a6 = 28
Mathematics
Find all values of x satisfying the given conditions.y = x - 
and y = 4
A. -1 B. 9 C. 2, 9 D. 1, 2
Mathematics