Question

Calculate the value of a

A. 2.93
B. 1.46
C. 1.87
D. 1.36

Answer 1

well look to see about what trig ratio you can use out of sin,cos, or tan. Do you see it?

Answer 2

not really

Answer 3

well what 2 sides of the triangle do they give you?

Answer 4

they give me 2 and 43

Answer 5

43 is a degree not a side they give the opposite of the angle the variable a and the hypotenuse of the triangle 2

Given this and the 3 trig rations of sin (opp/hyp), cos (adj/hyp) and tan (opp/adj) which one do you think you can use to find a?

Answer 6

sin

Answer 7

yes so now set up an equation that looks like

\[\sin(43)=\frac{ a }{ 2 }\]

Multiply by 2

\[2(\sin)43)=a\]

Now calculate it on your calculator (make sure your calculation mod is in degrees)

Answer 8

2sin(43) sorry

Answer 9

1.6

Answer 10

umm i get 1.36

Answer 11

huh...weird

Answer 12

well that is your answer, D

Answer 13

thank you for your patience

Answer 14

welcome! Anytime you need me id be glad to help