Answer:
½ - sqrt(3)
Step-by-step explanation:
cos(60) = ½
tan(30) = 1/sqrt(3)
cot(30) = sqrt(3)
tan(90) is undefined
cot(90) = 0
½ - sqrt(3) -0
½ - sqrt(3)
B
It is the only one that makes sense to me!
Pythagorean theorem.....a^2 + b^2 = c^2....where a and b are the legs and c is the hypotenuse
a^2 + 35^2 = 37^2 <===
1) To create an equation with r isolated, you divide both sides by π and square root both (it is given that all variables are positive). The equation is √A/π = r.
2) Plugging in the numbers give us <em>√54/(22/7) = r</em>.
√54(22/7) can be rewritten as √54*7/22, which is √378/22, which can be simplified to √189/11, or about 17.18.
A is the answer for your question