Solve the equation. If the equation is an identity or a contradiction, state this.10x - 7 = 50 - 9x
A. x = 57
B. x = -3
C. x = 3
D. x = 43
Answer: C
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Find the area. Use 3.14 for ? as necessary.
A. 109.9 cm2 B. 961.625 cm2 C. 3846.5 cm2 D. 219.8 cm2
Provide an appropriate answer.Fill in the blanks (four of them) with the best responses:To use DeMoivre's theorem to find the n nth roots of a complex number: 1. Express the number in ________________form. 2. Express the root as a ________________ exponent. 3. Use 
n = 
with ? to find one root. 4. Use 
n = 
and add _______° to ?, _________ times.
A. rectangular; decimal; 360; n - 1 B. fractional; polar; 360; n - 1 C. fractional; polar; 180; n - 1 D. polar; fractional; 360; n - 1
Solve by the substitution method. If the system is inconsistent or dependent, say so.5x + 4y = 253x + 2y = 13
A. (1, 6) B. (0, 6) C. (1, 5) D. No solution
Find or investigate the function as requested.Find a function f(n) whose domain is the set of natural numbers and the output produces the terms of the sequence 8, 11, 14, 17, . . .
A. 3n + 5 B. 3n C. 3n - 5 D. n - 5