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 cot A when a = 9 and c = 10.
A. 
B. 
C. 
D. 
Answer: D
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Write the ratio as a ratio of whole numbers using fractional notation. Write the fraction in simplest form.9
tons to 9
tons
A. 
B. 
C. 
D. 
Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 4.2 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 3.99t B. (S ? d)(t) = 3.15t C. (S ? d)(t) = 2.31t D. (S ? d)(t) = 7.1t
Find the center of the ellipse.
+ 
= 1
A. (5, -3) B. (3, -5) C. (-5, 3) D. (-3, 5)
Solve the problem.An omelette costs $1.00 more than Mario's order of pancakes. After treating his family to breakfast, Mario is sure that 5 omelettes and 4 orders of pancakes cost more than $25 but not more than $40, including tax of 7% and a tip of $3.50. In what price range is an order of pancakes?
A. [$1.65, $3.21] B. ($1.68, $3.23] C. ($1.65, $3.21] D. ($1.68, $3.23)