Answer:
3=95 vertically opposite angle
2+95=129 exterior angle is equal to the sum of two opposite interior angle of a triangle
2=129-95=34 answe
4+3+47=180 sum of interior angles of a triangle is 180
4=180-47-95=38 answer
Step-by-step explanation:
WE know that (distance) = Speed * time
and Speed = distance/time & time = distance/speed
Let AB = 60 mi. & the speed is 55 mi/h , then the spent to reach the rink is
t= 60/55 = 1.09 h
Since the total time is 2.75 h & he spent 1.09h to go to the rink, so the time spent on his way back is 2.75-1.09 = 1.659 h
So his speed on his way back is 60/1.659 =36.16 mi/h
Answer:
slope = 1/3
Step-by-step explanation:
Answer:
A. square root -4
Step-by-step explanation:
The answer is A because the square root of -4 is 2i which is an imaginary number.
-The square root of -4 is 2i (an imaginary number)
-The square root of 16 is 4
-The square root of 1 is 1
-The square root of 13 is ≈ 3.606
I believe x=25 and y=10.
Step-by-step explanation:
Because we know the angles in a parallelogram add up to 360 degrees, we can add up values and divide to find x and y. 8y and 4x-20 are supplementary, they must equal the same value. Same with 10y and the other corner. By this, we can do 10y times 2 and 8y times 2 to get 16y plus 20y, or 36y. Then, we divide 360 degrees by 36. We get y=10 from this. Plug in 10 to 8y and get 80 as the upper left angle measurement. This means that 4x-20 equals 80. Add 20 to 80 on both sides so it cancels out and you get 100=4x. Simply divide and you will get x=25. To make sure this is right, plug all the numbers in and make sure all of the angles add up to 360. Hope this helps :)