Find a general term an for the geometric sequence.a1 = - 
and r = -9
A. an = - 
- 
(n - 1)
B. an = 
n-1 + 
C. an = - 
? (-9)(n-1)
D. an = - 
+ 
(n - 1)
Answer: C
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Use the circle graph to solve the problem. Give your answer as a fraction, decimal, and as a percent.The circle graph below shows the majors for 160 college students at Blackwood Community College. What portion of the students are majoring in science?
A.
 ; 0.4; 40% |
B.
; 0.4; 4%C.
; 0.33; 33%D.
 ; 0.2; 20% |
Solve the quadratic inequality by graphing an appropriate quadratic function.x2 + 2x ? 8
A. (-2, 4) B. [-2, 4] C. [-4, 2] D. (-?, -2] ? [4, ?)
Find 
. Write the answer in polar form with the argument between 0° and 360°z1 = 10(cos 30° + i sin 30°), z2 = 5(cos 10° + i sin 10°)
A. 2(cos 3° + i sin 3°) B. 5(cos 20° + i sin 20°) C. 5(cos 3° + i sin 3°) D. 2(cos 20° + i sin 20°)
Multiply the polynomials using the FOIL method. Express the answer as a single polynomial in standard form.(x - 7)(x - 4)
A. x2 - 11x - 11 B. x2 - 11x + 28 C. x2 - 12x + 28 D. x2 + 28x - 11