Use Euler's method to approximate the indicated function value to three decimal places using 
= x2 + y2; y(0) = 1; find y(0.4)
A. 1.689
B. 1.573
C. 1.462
D. 1.569
Answer: B
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Make the required change in the given equation.x = -5 to cylindrical coordinates
A. r cos ? sin ? = -5 B. ? = arccos -5 C. r cos ? = -5 D. Not enough information to answer
Solve the problem.The charcoal from a tree killed in a volcanic eruption contained 64.9% of the 
found in living matter. How old is the tree, to the nearest year? Use 
for the half-life of 
A. 1708 years B. 3555 years C. 5700 years D. 2464 years
Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) = 
A. (8, 0) and (-3, 0)
B. (-8, 0) and 
C. (8, 0) and 
D. none
Solve the problem.Given is a graph of a portion of the postage function, which depicts the cost (in cents) of mailing a letter, p, versus the weight (in ounces) of the letter, x. What is the postage for a letter weighing 
Is the postage function continuous?
A. 33 cents; 55 cents; 77 cents; no B. 55 cents; 77 cents; 77 cents; no C. 55 cents; 55 cents; 77 cents; no D. 55 cents; 55 cents; 77 cents; yes