Solve the equation.2.3y = 69
A. y = 69
B. y = 46
C. y = 2.3
D. y = 30
Answer: D
Mathematics
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Match the system of equations with one of the graphs.x2 - y2 = 9x2 + y2 = 25
A. 
B. 
C. 
D. 
Mathematics
If f is an exponential function with growth factor 
, then f satisfies the equation of change 
.
Answer the following statement true (T) or false (F)
Mathematics
Use the quadratic formula to solve the equation. Simplify any radicals.15n2 = -21n
A. {0}
B. 
C. 
D. 
Mathematics
Give the measure of the requested angle.The complement of angle x is two times the angle. Find the measure of the angle and its complement.
A. 30° and 60° B. 45° and 90° C. 22.5° and 67.5° D. 60° and 120°
Mathematics