Answer:
The difference of a number and 8 is 16
Step-by-step explanation:
Statement that is expressed in words
Answer:
Step-by-step explanation:
< 3 and <6 are <u>same side interior angles </u>and
they are <u>supplementary angles</u> (they add up to 180°)
m<3 = 41°
m<6 = 180-41= 139°
<6 and <8 are <u>vertical angles</u> and <u>vertical angles are congruent </u>
(they have equal measures)
m<6 = 139°
m<8 = 139°
Answer:
All work is shown and pictured
Answer:
The minimum average speed needed in the second half is 270 km/hr
Step-by-step explanation
We can divide the track in two parts. For the first half of the track the average speed the car achieved was 230 km/hr and we need to make sure that the average speed of the full track is 250 km/hr. Then, we can calculate the average speed of the two parts of the track and force this to be equal to 250 km/hr. In equation, defining 
as the average speed of the second half:
Solving for 
Therefore, achieving a speed of 270 km/hr in the second half would be enough to achieve an average speed of 250 on the track.
Answer: choice B, 40.5 degrees
The triangle is isosceles based on the fact that AC = BC (the tick marks are the same). The angles opposite the congruent sides are also congruent
angle A = angle B = x for some unknown number x
The three angles A,B,C add to 180, so,
A+B+C = 180
x+x+99 = 180
2x+99 = 180
2x = 180-99
2x = 81
x = 81/2
x = 40.5
So angle A and angle B are both 40.5 degrees
Check:
A+B+C = 180
40.5+40.5+99 = 180
180 = 180 answer is confirmed
==============================
Edit
The sides with the two tick marks are the same length, so 7x-4 is the same as length as 31
7x-4 = 31
7x = 31+4
7x = 35
x = 35/7
x = 5
Answer is choice B) 5
