Establish the identity.sin(? - ?) cos(? + ?) = sin ? cos ? - sin ? cos ?
What will be an ideal response?
sin(? - ?) cos (? + ?) = (sin ? cos ? - cos ? sin ?)(cos ? cos ? - sin ? sin ?) 
= sin ? cos ? - sin ? cos ?
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Solve.If two times the smaller of two numbers is added to five times the larger, the result is eleven. However, if two times the smaller is subtracted from two times the larger, the difference is ten. What are the numbers?
Fill in the blank(s) with the appropriate word(s).
Simplify the expression without using a calculator.(-10)2
A. 20 B. -100 C. 100 D. -20
Use the table to find the compound interest. Round to the nearest cent.
$120 at 1% compounded annually for 5 years
A. $6.00 B. $4.80 C. $4.87 D. $6.12
Find the center (h, k) and radius r of the circle with the given equation. x2 + (y - 4)2 = 25
A. (h, k) = (0, 4); r = 5 B. (h, k) = (0, 4); r = 25 C. (h, k) = (4, 0); r = 5 D. (h, k) = (4, 0); r = 25