X+y=51
x-y=29
add equations
x+y=51
<u>x-y=29 +</u>
2x+0y=80
2x=80
divide 2
x=40
sub
x+y=51
40+y=51
y=11
they are 40 and 11
Given:
Population mean, μ = 10
Population standard deviation, σ = 1.5
Random variable, x = 11.
By definition, the z-score is
z = (x - μ)/σ
= (11 - 10)/1.5
= 0.667
Answer: 0.667
Their is no possible solution because you can’t get .4 of a book
Angles around a point equal 360°, so n = 360 - 291 = 69°
Thus, as angles in a triangle add to 180°, m = 180 - 31 - 69 = 80°
What is the radius of the circle?