Express the sum using summation notation.
+ 
+ 
... + 
A. 
B. 
C. 
D. 
Answer: B
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Find the center and radius of the circle.x2 + y2 + 2y = 8
A. (1, 0); 4 B. (0, -1); 3 C. (0, 1); 3 D. (0, 2); 2
Solve.Which hyperbola is wider? Explain.I) 
- 
= 1 II) 
- 
= 1
What will be an ideal response?
Use the table to evaluate the given expression.f(0) and f(8)
A. f(0) = 0; f(8) = 8 B. f(0) = 2; f(8) = 9 C. f(0) = -4; f(8) = 5 D. f(0) = 1; f(8) = 5
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.What is the magnitude of an earthquake whose seismographic reading is 7.6 millimeters at a distance of 100 kilometers from its epicenter?Round the answer to four decimal places.
A. 0.20281 B. 2.0281 C. 0.38808 D. 3.8808