Solve the equation. If the equation is an identity or a contradiction, state this.7(x - 1) + x = 8(x + 1) - 15
A. ? or { }; contradiction
B. all real numbers; identity
C. {7}
D. {0}
Answer: B
Mathematics
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Factor the polynomial completely. If the polynomial is prime, so state.-75x3 - 130x2 - 40x
A. x(3x + 4)(-25x - 10) B. -5(3x2 + 4)(5x + 2) C. -5x(3x + 4)(5x + 2) D. x(-15x - 20)(5x + 2)
Mathematics
Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a11 when a1 = 2, r = 3.
A. 118,102 B. 354,294 C. 118,098 D. 32
Mathematics
Find the difference.
- 
A. 
B. 
C. - 
D. - 
Mathematics
Use De Moivre's Theorem to find the indicated power of the complex number. Write your answer in standard form a + bi.(5(cos 90° + i sin 90°))3
A. -125 i B. -125 C. -15 i D. 0
Mathematics