Solve the problem.Shade in the points (x, y) for which (xi + yj) ? v ? 0. Justify your answer.
What will be an ideal response?
Let w = xi + yj. Then the dot product is w? v = 
cos? ? 0. The relation is satisfied for all ? between - 
and 
.
Mathematics
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Determine whether the function is a solution of the wave equation.w = sin(10x + 10ct)
A. Yes B. No
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Evaluate.x - y, where x = -27.403 and y = -9.708
A. -37.111 B. -18.305 C. -36.211 D. -17.695
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Suppose you purchase a home and obtain a 15-year fixed-rate loan of $185,000 at an annual interest rate of 7.5%. Of the second month's mortgage payment, how much is applied to the principal?
a. $562.21 b. $558.72 c. $1,152.76 d. $1,156.25 e. $1,714.97
Mathematics
Simplify by writing with positive exponents. Evaluate if necessary. Assume that all variables represent nonzero real numbers.5-3
A. 125
B. 
C. 
D. -125
Mathematics