Step-by-step explanation:
x² + 3x + 2
x² + x + 2x + 2 because 1+2=3 and 2×1=2
By taking out common terms, we get
x(x+1)+2(x+1)
(x+1)(x+2)
28 = 3x+4x
x = 4
3x = 12
4x = 16
12:16 = 3:4
Answer: right triangle
Step-by-step explanation: 9, 40, and 41 are examples of Pythagorean triples.
First put everything into numbers:
30 tens = 300
3 tens = 30
3 tenths = 0.3
Substitute these values:
300 - 30.3
Solve:
269.7
Area of the square = 11*11 = 121
Area of the circle = pi r^2 = pi*1^2 = 3.142
Part A
P( hitting the circle = 3.142 / 121 = 0.026 which is closer to 0.
Part B.
P( hitting the white portion) = 1 - 0.026 = 0.974 which is closer to 1.
