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:
14x-24
Step-by-step explanation:
Answer:
$1,365
Step-by-step explanation:
Large Pizza: 40*12= $480
Medium Pizza: 57*10= $570
Small Pizza: 35*9= $315
480+570+315= $1,365
5v^2 + 25 = 115
5v^2 = 115 - 25
5v^2 = 90
v^2 = 90/5
v^2 = 18...take the square root of both sides eliminating the ^2
v = (+-) sqrt 18
v = 4.24 or v = -4.24
I dont get what the letter mean what goes with each thing