Use Cramer's Rule to solve the following system of linear equations:
a. 
b. 
c. 
d. 
e. 
c.
Mathematics
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Decide whether the following is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.
A. Equation; 9
B. Expression; x + 7
C. Equation; 7
D. Expression; 
Mathematics
Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s.r = 1.5 meters, s = 2.25 meters
A. 0.67 radians B. 1.4 radians C. 0.75 radians D. 1.5 radians
Mathematics
Solve the equation. Round to the nearest hundredth, if necessary.2(k - 4.8) = -0.7(k - 3.7)
A. k = 9.38 B. k = -5.39 C. k = 5.39 D. k = 4.51
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics