Answer:
Step-by-step explanation:
Find the lenghth of the left and right sides using the distance formula to determine if the trapeziod is isosceles
Since 
(the sides are not equal) this is not an isosceles trapezoid
Sally is incorrect and John is possibly correct.
Find the slope of the top and bottom sides to determine if this is a trapezoid.
SR: 
PQ: 
since 
(the slopes are not equal) the top and bottom sides are not parallel therefore this is not a trapezoid. Hence, John is incorrect, and Mary is ultimately correct.
Answer:
The center is at (2.5, -5.4) and the radius is 1.1
Step-by-step explanation:
The formula for a circle is
(x-h)^2 + (y-k)^2 = r^2
Where (x,k) is the center and r is the radius)
(x − 2.5)^2 + (y + 5.4)^2 = 1.21
(x − 2.5)^2 + (y - - 5.4)^2 = 1.1^2
The center is at (2.5, -5.4) and the radius is 1.1
62.40 for each ticket.
156 x 20 = 3120.
3120 / 100 = 31.2
156 - 31.2 = 124.8
124.8 / 2 = 62.40
Answer:
Population A
Step-by-step explanation:
Think about. If population A already known for normally distribution AND you take large samples. The rest would still be distributed, Which keeps population A a Normal Distribution.
but Population C is nor normally distributed, so if you take away large samples. it will deteriorate its distribution so it won't get any better or in this case, normal. so. it is Population A.
