y? = sin (x y), y (0) = 1, ?x = 0.1
For the initial-value problem, use
(a) Euler’s method and
(b) the Runge-Kutta method with the given step size ?x to approximate y (2).
(a) 2.117293
(b) 2.1432
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Find the volume of the indicated region by an iterated integration.The tetrahedron bounded by the coordinate planes and the plane 
A. 30 B. 45 C. 90 D. 60
Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. 0 B. 1 C. -1 D. undefined
Represent the vector in the form v = ai + bj whose magnitude and direction angle are given.
= 14; ? = 270°
A. v = -14i - 14j
B. v = -14j
C. v = -14i
D. v = 14
Solve the problem.The table shows the average temperature in degrees Fahrenheit from February through December in a certain city. In this table 
corresponds to February, 
corresponds to April, etc. 
Determine whether a linear, quadratic, cubic, or quartic polynomial best fits this data.
A. Linear B. Quadratic C. Cubic D. Quartic