Write sigma notation.
- 
+ 
- 
+ 
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.Given 
f(x) = Ll, 
f(x) = Lr , and Ll = Lr, which of the following statements is false? I. 
f(x) = Ll II. 
f(x) = Lr III. 
f(x) does not exist.
A. I B. none C. III D. II
Mathematics
Solve the equation for x.x = (5x - 3)(3k + 1)
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Write the number in scientific notation.620,000
A. 6.2 × 10-6 B. 6.2 × 106 C. 6.2 × 105 D. 6.2 × 10-5
Mathematics
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = x2 + 4
A. vertex: (0, 4)
axis of symmetry: x = 0
B. vertex: (0, 4)
axis of symmetry: x = 0
C. vertex: (4, 0)
axis of symmetry: x = 4
D. vertex: (0,-4)
axis of symmetry: x = 0
Mathematics