Answer:
n= 1/ 3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
3 /4 n+ 1 /4 = 1 /2
Step 2: Subtract 1/4 from both sides.
3 /4 n+ 1 /4 − 1 /4 = 1 /2 − 1 /4
3 /4 n= 1 /4
Step 3: Multiply both sides by 4/3.
( 4 /3 )*( 3 /4 n)=( 4 /3 )*( 1 /4 )
n= 1 /3
It is cotangent
Sin-CSC
cosin-sec
tan-cot
for nr. 1
sum of angles in a triangle=180
x=180-(81+84)=15
acute triangle
for nr.2
x=180-(24+36)=120
obtuse triangle
D.) the initial height of the roller coaster
A acute triangle looks like this..^^
