The correct answer to this question is: " A valid reason why the quadrilateral shown below is a parallelogram is that "B. All pairs of consecutive angles are supplementary."
The choices are:
A. Both pairs of opposite angles are congruent
B. All pairs of consecutive angles are supplementary
C. Both pairs of opposite sides are parallel
D. All pairs of consecutive angles are complementary
Answer:
2√3 = hypotenuse
√3 = side
Step-by-step explanation:
Answer:
80 hours for 2 workers to build 8 cars
Step-by-step explanation:
2 cars / 8w *5 hr = 2 cars / 40 hrs 1 car takes 20 hrs
8 cars * 20 hours = 160 hours required
two workers split this time 160/2 = 80 hours
Answer:
It is proved that if 
is even the n is even.
Step-by-step explanation:
Given n is any integer.
To show is even then n is even.
Proving by contrapositive suppose is odd. Then we need to show n is odd.
Then, letting k is a ny integer,
Now since (2k+1) is odd therefore n is odd.
Conversly let n is odd, then,
since 2k+1 is odd so is odd.
This proves, if n is even then is even.
<span>As the Earth has a radius of 6371 kilometers and pilot is flying at a steady altitude of 5.6 kilometers above the earth's surface.
This forms a right angled triangle of perendicular 6371km and hypotenuse of (6371+5.6)km.
The pilot's distance to the horizon will be the Base.Hence by pythagoras theorem
we have Distance=276.5km
rounding of =280km</span>
