Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the value of the indicated trigonometric function of the given angle. Rationalize the denominator if applicable.Find sin A when a = 9 and b = 2.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem. If necessary, refer to the table below.?Monthly Payments to Repay Principal and Interest on a $1000 Mortgage Term of Mortgage (Years)
Constance Hairston obtains a 20-year, $132,600 mortgage at 8.5% on a house selling for $158,000. Her monthly payment, including principal and interest, is $1150.73. How much of the total cost will be interest?
A. $133,525.67 B. $186,648.79 C. $276,175.20 D. $157,933.59
Use a graphing utility to obtain the plane curve represented by the given parametric equations.Witch of Agnesi: x = 2 cot t, y= 2 sin2 t, 0 ? t < 2?
A. 
B. 
C. 
D. 
Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
A. 3b2
B. 
C. 4b2
D. 
Find the area of the triangle.The base is 7.8 yd and the height is 45 ft.
A. 58.5 yd2 B. 117 yd2 C. 175.5 yd2 D. 234 yd2