Suppose the triangles shown are similar, with angle A = angle D, angle B = angle E, and angle C = angle F. Answer the question.
What is the length of side DF?
A. 76
B. 22
C. 54
D. 30
Answer: B
Mathematics
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Choose the graph that matches the function. f(x) = - 
x + 5
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The vertical displacement y (in ft) of a water wave was determined to be 
where t is the time (in s). Find the velocity for 
A. 23 ft/s B. -1.6 ft/s C. 3.7 ft/s D. 1.7 ft/s
Mathematics
Write the ratio in lowest terms.35 to 45
A. 
B. 
C. 
D. 
Mathematics
Identify the equation as either an identity or not.
= 1
A. Not an identity B. Identity
Mathematics