The axis of symmetry is x=3
Answer: (12, 0) and (0, 8)
Step-by-step explanation:
This equation is in standard form. We can sub in a number for x to solve for y and vice versa.
Let's sub in 0 for x.
When x is 0 y is 8 giving us the coordinate (0, 8).
Now lets sub in 0 for y
When y is 0 x is 12 giving us the coordinate (12, 0)
Answer:
67.5 degrees
Step-by-step explanation:
The angles at the center of the figure = 360 degrees
Therefore, 3x + x + 90 degrees = 360 degrees
simplifying:
4x + 90 degrees = 360 degrees
4x = 360 - 90
4x = 270 degrees
x = 270÷ 4
x = 67.5 degrees
First turn this into an equation
7x+8x+44.4=180
Now collect like terms
15x+44.4=180
Next take away 44.4 from 180
15x=135.6
Finally divide 135.6 by 15
x=9.04
To calculate the shaded angle substitute 9.04 for x
8x=8×9.04
8x=72.32
The shaded angle is 72.32°
5,280 feet → 1 mile
63,360 feet → 63,360/5,280 = 12 miles
60 x 60 seconds → 1 hour
3,400 seconds → 3,400/3,600 = 17/18 hours
Nina's rate = 12 miles / (17/18) hours = 12 12/17 miles per hour.
