Which equation can be used to find the length of AC? A
10 in
b
40°
С
B
a
O (10)sin(400) = AC
(10) cos(40°) = AC
10
= AC
sin(40)
10
= AC
cos(40°)

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the complete question in the attached figure

we know that

sin40° = opposite side / hypotenuse

opposite side =AC

hypotenuse = AB-------> 10 in

so

sin 40=AC/AB---------> AC=AB*sin 40-------> AC=10*sin 40

the answer is

AC=10*sin 40

i only know the sequence of arithmetic it adds the first is 5+4 then it goes up as it adds to then it is 9+5 then 14+6 then to 20+7 and so on. 5,9,14,20,27,35.

step-by-step explanation: