Answer:
The graph does represent a function because it passes the vertical line test!
Step-by-step explanation:
A vertical line test means if you put a vertical line over any area on the graph it shouldn't hit the line more than once :)
Answer: 8?
Step-by-step explanation:
Answer:
36 miles.
Step-by-step explanation:
We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.

Substitute the given values:




The total distance is 72 miles, so the distance going up would be half of 72.

Therefore, Karina went 36 miles up the mountain.
Answer:
$80+18%= $94.4
Step-by-step explanation:
80:100×18= $14.4 (18% of 80)
$80+14.4 = $94.4
Answer:
The area of the circle is 113.0 ft²
Step-by-step explanation:
To solve this problem we need to use the area formula of a circle:
a = area
r = radius = 6ft
π = 3.14
a = π * r²
we replace with the known values
a = π * (6ft)²
a = π * 36ft²
a = 113.04ft²
The area of the circle is 113.04ft²
round to the nearest tenth
a = 113.04ft² = 113.0 ft²