X - 2y = - 9
7x + 2y = 1
x - 2y = - 9
(+)
7x + 2y = 1
___________
8x = - 8
x = - 1
- 1 - 2y = - 9
2y = 8
y = 4
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2/45 or 0.0444....
Hope this helped
A) The area of a square of side 1 that is outside a circle of radius 1 is (1 -π/4), so the probability of interest is
.. p(outside unit circle) = 1 - π/4
b) The sets of numbers such that 3y>x is fill an area that is 5/6 of all sets of numbers (x, y) in the interval [0, 1].
.. p(3y > x) = 5/6
Answer:
12
Step-by-step explanation:
square: 2 x 2 = <u>4 units sq</u>
small triangle: 2 x 2 = 4, 4 / 2 = <u>2 units sq</u>
big triangle: 2 x 6 = 12, 12 / 2 = <u>6 units sq</u>
4 + 2 + 6 = <u>12 units sq</u>