How do you calculate trapezoid area? - ANSWER Average of bases x height
How do you find the circumference of a circle?
How do you find the area of a circle? - ANSWER C= 2 x π x r
A= π x r^2
, Surface Area of Sphere - ANSWER 4 x π x r^2
How do you calculate the volume of a sphere? - ANSWER 4/3 x π x r^3
5 red
3 green
4 blue
What is the probability of getting red then another red, without replacement? - ANSWER 5/12 x 4/11 =
20/132
Pnumonic for sin, cos, tan? - ANSWER Sin= SOH
Cos= CAH
Tan= TOA
CSC?
SEC?
COT? - ANSWER Cosecant = 1/ sin
Secant = 1/ cos
Cotangent = 1/ tan
In a group of people, 30 of them wear glasses and 17 of them wear earrings. If 12 people wear both
glasses and earrings, how many people wear only earrings or only glasses?
A. 17 people
B. 23 people
C. 30 people
D. 35 people
E. 42 people - ANSWER 30 glasses
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