In triangle abc, which trigonometric ratio has the value a/c?
a) tan a
b) cos a
c) tan c
d) cos c
e) sin c

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Which shows a reasonable estimation for 124% of 42 using the distributive property?

What is the measure of angle 1? a.28 b.152 c.168 d.64