Translate the problem situation to a system of equations. Do not attempt to solve.The Cudly College football team scored 60 times last season, some on seven-point touchdowns and some on three-point field goals. Altogether, the 60 scores accounted for 248 points. How many touchdowns and field goals did they score? (Let x represent the number of touchdowns and y represent the number of field goals.)
A. x - y = 60, 7x - 3y = 248
B. x + y = 60, 7x + 3y = 248
C. x + 3y = 60, 7x + y = 248
D. x + y = 248, 7x + 3y = 60
Answer: B
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Find all solutions of the equation in the interval [0, 2?).(8 sec x - 16)(4 sec x - 4) = 0
A. 
B. 
C. 
D. 
Determine whether the relation is a function. Give domain and range of the relation.{(-1, -3), (-2, -2), (-2, 0), (2, 2), (14, 4)}
A. function; domain: {-1, 2, -2, 14}, range: {-3, -2, 0, 2, 4} B. function; domain: {-3, -2, 0, 2, 4}, range: {-1, 2, -2, 14} C. not a function; domain: {-1, 2, -2, 14}, range: {-3, -2, 0, 2, 4} D. not a function; domain: {-3, -2, 0, 2, 4}, range: {-1, 2, -2, 14}
Find the function value.Let f(x) = e-x. Find f(3.9), rounded to four decimal places.
A. 10.6013 B. 1.4347 C. 49.4024 D. 0.0202
Expand the expression.log2 
A. 7 log2 x - 9 log2 y - log2 9 B. 7 log2 x + 9 log2 y + log2 9 C. 7 log2 x + 9 log2 y - log2 9 D. (7 log2 x)(9 log2 y) - log2 9