Answer the question.If the trinomial ax2 + bx + c is a perfect square, what can we conclude about the solutions of the equation ax2 + bx + c = 0?
A. The equation has exactly one irrational solution.
B. The equation has exactly one rational solution.
C. The equation has two different rational solutions.
D. The equation has no real number solutions.
Answer: B
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Solve the equation.1.3x - 4.8 = 0.7x + 0.78
A. 9.31 B. 9.3 C. -0.108 D. 9.393
Evaluate the line integral along the curve C.
ds , C is the path from (0, 0, 0) to (-4, 4, 1) given by:C1: r(t) = -4t2i + 4tj, 0 ? t ? 1C2: r(t) = -4i + 4j + (t-1)k, 1 ? t ? 2
A. 
- 
B. 
C. 
D. 
+ 
Given that ? is an angle in standard position whose terminal side contains the given point, provide the exact value of the indicated function.(-20, 48); sin ?
A. - 
B. 
C. - 
D. 
Use the formula for Sn to find the sum for the geometric sequence.3, -9, 27, -81, 243
A. 183 B. 363 C. -363 D. -183