History of Pi
Combining Like Terms
Name this Formula!
Algebra
100
What is the approximate value of that is commonly used in calculations?
π ≈ 3.14
100
Combine:
3π+2π
5π
100
C = 2*pi*r
Circumference of a Circle
100
Find the slope of the line that passes through these two points:
(-6,8) and (2,2)
-6/8 = -3/4
200
Who was the ancient mathematician that first used the symbol to represent the ratio of a circle's circumference to its diameter, and in which century did this occur?
The symbol pi was first used by Welsh mathematician William Jones in the early 18th century (1706).
200
Combine:
4π+7+2π−3
6π+4
200
A = pi * r2
Area of a Circle
200
A right triangle has legs measuring 4.5 meters and 1.5 meters. Select all correct pair of lengths that are proportional to the legs of this triangle.
a) 6m and 2m
b) 8m and 5m
c) 11.25m and 3.75m
A and C
300
What modern mathematical advancement allowed for the computation of to millions of decimal places?
Computers
300
Combine:
5+2π−3+4π
6π+2
300
V = pi * r^2 * h
Answer: Volume of a Cylinder
300
What is the equation of the function below
y = 2x-1
400
Which ancient civilization is known for approximating pi as far as 227 decimal places?
The ancient Egyptians
400
Combine:
2π−4+3π+6−1
5π+1
400
V = 4/3*pi*r3
Volume of a Sphere
400
An appliance store sells an oven for 25% off the original price. The sale price is $251.85, not including tax. What is the price of the oven, not including tax, before the discount is applied?
A) $276.85
B) $314.81
C) $326.85
D) $335.80
D
75/251.85 = x/100
x = 335.80
500
The first ____ digits of Pi contain no zeros
31
500
Combine:
7π+2−3π+4π−5+π
9π−3
500
A=2πrh+2πr2
Surface Area of a Cylinder
500
You order two servings of pancakes and a fruit cup. The cost of the fruit cup is $1.50. You leave a 15% tip. Your total bill is $11.50. How much does one serving of pancakes cost?
11.50 = bill + 15%tip
tip = $1.50
bill - fruit cup --> 10 - 1.50 = 8
Pancakes = 8/2 = 4