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10.1-10.7 Honors PreCalculus Quiz - CALCULATOR PART
SHORT ANSWER. SHOW ALL WORK!!!!!!
Solve the problem.
1
)
The Famil
y
Arts Center charges $25 for adults, $12 for senior citizens, and $9 for children under 12 for their live
performances on Sunday afternoon. This past Sunday, the paid revenue was $12,904 for 861 tickets sold. There
were 46 more children than adults. How many children attended?
Solve the system of equations and then evaluate the given expression
.
2
)
2x - 3
y
+ z = 6
5x - 4y - 3z = -1
-4x + 2y + 5z = 7
Evaluate x + 2y - 3z.
Find the value of the determinant.
3
)
-2 5 4
3 -2 1
1 6 -3
Perform the indicated operations and simplify
.
4
)
Let A = 3 -4
-2 5 , B = 5 -2 8
1 0 -3 , and C =
7 -9 0
3 -5 1
-1 6 2
. Find AB + BC.
1
