Find the acute angle, in degrees, between the lines.3x - y = 12 and 2x + y = -1
A. 45°
B. 75°
C. 30°
D. 60°
Answer: A
Mathematics
You might also like to view...
Simplify the decimal expression.6.4 - 1.8
A. 5.7 B. 5.6 C. 4.5 D. 4.6
Mathematics
Solve the problem.Subtract (20a4 - 13a3) from (-5a4 - 17a3).
A. -25a4 - 30a3 B. 15a4 - 30a3 C. -29a7 D. -25a4 - 4a3
Mathematics
Determine the value of c so that the given system of equations is dependent.
A. -16 B. -28 C. 12 D. 14
Mathematics
Solve the problem.On a map of the Fox River, 1 centimeter equals 2 kilometers. If a trail by the river is actually 
long, what is the length of the river on the map?
A. 6.8 cm B. 4.8 cm C. -2.4 cm D. 7.6 cm
Mathematics