Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find cos ?.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the acceleration for the specific value of t.x = 
, y = 
, t = 2
A. 0; 123.1° B. 0.01; 303.1° C. 0.01; 123.1° D. 0; 303.1°
Mathematics
Use a calculator to find the value of y in degrees rounded to two decimal places.y = sin-1 0.9128
A. 67.89° B. 70.89° C. 65.89° D. 60.89°
Mathematics
Solve the problem.Jack borrowed $700 from his brother. Jack's brother wants 12 monthly payments of $75 to repay the loan. How much extra is Jack's brother charging for the loan?
A. $1000 B. $900 C. $200 D. $125
Mathematics
Solve the equation. Express radicals in simplest form.m2 = 30.25
A. {5.5} B. {-5.5, 5.5} C. {-6.25, 6.25} D. ?
Mathematics