Answer:
130
All of the angles on a triangle add up to 180 degrees.
Answer:
As e is point between df. So we can write df as
df = de + ef
As given df = 78 , de = 5x - 9 , ef = 2x + 10.
So we can write
78 = 5x - 9 + 2x + 10
78 = 7x + 1
On subtracting 1 on booth side
78 - 1 = 7x +1 - 1
77 = 7x
On dividing both side by 7.
11 = x
So x = 11.
So ef = 2x + 10 = 2*11 + 10 = 22 + 10 = 32
Step-by-step explanation:
Answer:
-84
Step-by-step explanation:
Answer:
Interval positive and negative
The positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. ... y-values that are on the x-axis are neither positive nor negative.
Step-by-step explanation:
Answer:
Step-by-step explanation:
To convert from miles per hour to miles per minute we must convert hours to minutes.
We know that in 1 hour there are 60 minutes,
Then we use the following conversion factor. 
Finally the expression will be:
Then notice that:
