Its a because you have to do the change in y over the change in x which is
y2-y1
------
x2-x1
It is c
X=20 :)
Hopefully it’s right.
Answer:
√3/2 or 0.866
Step-by-step explanation:
Use special triangles. (See attachment)
The cosine ratio is adjacent ÷ hypotenuse.
cos30° = √3 ÷ 2 = √3/2
As a decimal, cos30° ≈ 0.866
Remember all the primary trig ratios with the acronym SohCahToa.
"o" = opposite
"a" = adjacent
"h" = hypotenuse
S, C and T are sin, cos, tan
Answer:
.50 dollars for each hour
Step-by-step explanation:
1) the answer is 5x and -2x
2) -3a and a
3)4x and 5x
4)7x