Theorem:
The measure of an exterior angle of a triangle is equal to the sum of the measures of its remote interior angles.
Angle 4 is an exterior angle of the triangle.
Angles 1 and 2 are the remote interior angles of angle 4.
m<4 = m<1 + m<2
m<4 = 30 deg + 110 deg
m<4 = 140 deg
Answer:
30. -5 , -2 , -2, 3 , 8
31. -7, -6, -6, 5, 8
32. -26, -15, -12, -12, 10
33. -34, -17, -11, 20, 21
Answer:
At least means... From 45$ above or It should be equal to 45 or More...
7x≥45
x≥45/7
He need to Move at least 7 lawns.
Solution :
Give that a shark can chase prey about 30 miles per hour.
1 hour = 60 minute
by using unitary method, we will convert miles per hour into miles per minute
in 60 minutes the shark can chase the prey 30 miles
In 1 minute the shark can chase 
Hence the shark can chase the prey about 0.5 miles per minute.
