Answer:
R=50 degrees
Step-by-step explanation:
All of the angle measures together are 180 degrees. You need to make an equation in order to solve this problem:
180= (3x+5) + (11x-1) + (5x+5)
You then combine like terms:
180= (3x+11x+5x) + (5-1+5)
180= 19x+9
Then, subtract 9 from 180:
171= 19x
Then, divide 171 by 19:
9= x
Finally, you plug the value of x into the equation representing angle R:
5 x 9 + 5
45 + 5
50
Answer:
22
Step-by-step explanation:
sorry if its wrong i dont know the answer choices
Answer:

Step-by-step explanation:
Left part of the graph is the graph of the parabola passing through the points (-2,3), (-3,2) and (-4,-1). If the equation of the parabola is
then

Subtract first two equations and last two equations:

Suybtract these two equations:

So 
Substitute into the first equation:

The equation of the parabola is 
The right part of the graph is translated 1 unit to the right and 1 unit down graph of the function
, so it has the equation 
Hence, the piece-wise function is

114 divided by 6 equals 19.
7th graders prefer fiction is 0.75 = 75%
8th graders prefer fiction is 0.68 = 68%
7th graders is greater than 8 graders
answer
<span>A. greater than</span>