Add or subtract the rational numbers. Express the sum or difference as a rational number in lowest terms.
- 
A. 
B. - 
C. - 
D. 
Answer: A
Mathematics
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Write the sum without sigma notation and evaluate it.
A. -(1 - 3)2 -2(2 - 3)2 -3(3 - 3)2 = -6 B. -(1 - 3)2 + (2 - 3)2 - (3 - 3)2 = 3 C. (1 - 3)2 - (3 - 3)2 = -4 D. -(1 - 3)2 + (2 - 3)2 - (3 - 3)2 = -3
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 0 B. -12 C. 1 D. -4
Mathematics
Completely factor the polynomial or state that the polynomial is prime.4x3 + 12x2 - 40x
A. 4x(x + 2)(x - 5) B. (x - 2)(4x2 + 20) C. (4x2 + 8x)(x - 5) D. 4x(x - 2)(x + 5)
Mathematics
Find the exact value using a double-angle identity.sin(480°)
A. 
B. -1
C. - 
D. 
Mathematics