Tell whether or not the relation is a function.{(-6,-5), (-6,1), (1,2), (3,-6), (7,7)}
A. Yes
B. No
Answer: B
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Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = 2xex2, y(1) = 3, h = 0.1
A. y1 = 3.8980, y2 = 4.6358, y3 = 5.6488 B. y1 = 3.1893, y2 = 3.9271, y3 = 4.9400 C. y1 = 2.8349, y2 = 3.5727, y3 = 4.5857 D. y1 = 3.5437, y2 = 4.2814, y3 = 5.2944
Find the work done by F over the curve in the direction of increasing t.F = -5zi + 7xj + 7yk; C: r(t) = ti + tj + tk, 0 ? t ? 1
A. W = 3
B. W = 9
C. W = 
D. W = 18
Determine ? in decimal degrees. Round results to an appropriate number of significant digits.tan ? = 0.545
A. 8.0° B. 8° C. 29° D. 29.0°
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.40% of the teachers in a school are female. If there are 255 teachers altogether, how many teachers are female?
A. 638 teachers B. 102 teachers C. 16 teachers D. 153 teachers