Use the triangles at the right to find the trigonometric ratio

Trigonometric ratio is the special measurements of a right triangle. There are three basic trigonometric ratios which are sine , cosine , and tangent.

Step-by-step explanation:

What is sine? The sine of an angle x is the length of the opposite side.

What is cosine? The cosine of an angle is the length of the adjacent side divided by the length of the hypotenuse.

What is tangent? The tangent of an angle is the length of the opposite side

Tangent and sine are very closely related and easily mixed up. Be carful with your calculations for the most accurate answer.

answer:

sometimes

*i think

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)