Answer:
A(x1, y1), B(x2, y2), C(x3, y3), D(x4, y4) form line segments AB and CD
For AB to be perpendicular to CD, triangle ABC should be a right angle or AC^2 = AB^2 + BC^2
(x3-x1)+(y3-y1) = (x2-x1)+(y2-y1) + (x3-x2)+(y3-y2)
If this is equal we can say AB is perpendicular to CD
Hope this helps!
Answer: 49/8
Step-by-step explanation:
Multiply 6*8 then add 1 and get 49/8
Use a calculator put 80,257 divided by 97
Answer:
0.1749
Step-by-step explanation:
We are to find the probability that none of the house-holds tuned to 50 minutes.
P(tune to 50 minutes) = 0.16
p = 0.16
q = 1 - 0.16
q = 0.84
number of households (n) = 10
x = number of households that tuned at 50 minutes
since none of the household tuned, then:
x = 0
Using the binomial expression:
P(x =0) = 0.1749
Answer:
96°
Step-by-step explanation:
The measure of arc EC is twice the measure of ∠DEC, so is ...
arc EC = 2×68° = 136°
The measure of arc BC is found from the sum of arcs around a circle.
BC +CE +EB = 360° = BC +136° +128°
BC = 96° . . . . . subtract 264°
