Evaluate the expression: 4!
a. 120
b. 4
c. 12
d. 24
d. 24
Mathematics
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Let ? be an acute angle. Find the unknown trigonometric value using the given information.csc ? if sin ? = 
A. 
B. 
C. 
D. 
Mathematics
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary. 6x + 4y = -4 5x + 7y = 4
A. ? B. {(2, -2)} C. {(-2, -2)} D. {(-2, 2)}
Mathematics
Find a cartesian equation of the following curve, assuming the center is at the origin. Use a graphing utility to check your work.A hyperbola with vertices (0, ±2) and eccentricity 2
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics
Find the instantaneous rate of change for the function at the given value.s(t) = 3t2 + 5t - 7 at t = -2
A. 1 B. -1 C. -17 D. -7
Mathematics