Find the quadratic approximation of f at x = 0.f(x) = 
A. Q(x) = 6 + 
B. Q(x) = 6 - 
C. Q(x) = 6 - 
D. Q(x) = 6 + 
Answer: B
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Determine whether the equation is linear.-43y + 
= 0
A. Not Linear B. Linear
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. 0.38808 C. 2.0281 D. 3.8808
A vertical beam of a searchlight, S, illuminates a cloud at P. An observer, Q, 100 feet from S measures the angle of elevation to P as 82°. How high is the cloud?
Divide.(x2 + 8x + 15) ÷ (x + 5)
A. x + 3 B. x3 - 10 C. x2 + 3 D. x - 10