The three main trig functions are sine (written as sin), cosine (written as cos), and tangent (written as tan).
Sine of an angle = the length of the side opposite (aka across) the angle / the length of the hypotenuse
Cosine of an angle = the length of the side adjacent (aka the side next to which isn't the hypotenuse) to the angle / the length of the hypotenuse
Tangent of an angle = the length of the side opposite of the angle / the length of the side adjacent to the angle.
The acronym to remember this is SOHCAHTOA
SOH | CAH | TOA
SOH means sin(x) = opposite/hypotenuse
CAH means cos(x) = adjacent/hypotenuse
TOA means tan(x)= opposite/adjacent
cosB = length of adjacent side/length of hypotenuse = 7/25
tanB = length of opposite/length of adjacent = 24/7
sinB = length of opposite/length of hypotenuse = 24/25
Answer:
Step-by-step explanation:
4 1/2 minutes = 4.5 minutes
2 / 4.5 = 0.44 laps per minute
OR
4.5 / 2 = 2.25 minutes per lap
not sure which one ur looking for...but both are unit rates
Answer:
7/40
Step-by-step explanation:
Since 1 ounce is 1/20 of 20 ounces, she needs to use 1/20 of 3 1/2 cups.
1/20 * 3 1/2 = 1/20 * 7/2 = 7/40
Answer:
6 feet 8 inches
Step-by-step explanation:
The mirror ensures that the line of sight makes similar triangles, so ...
x/10 = 4/6
x = 40/6 . . . . feet = 6 2/3 ft = 6 ft 8 in
The mirror is 6 feet 8 inches from the goal.
