Answer:
a. she cleans 2.5 rooms per hour
b. im not sure what the equation would be
c. the point (6,15) represents 15 rooms were cleaned in 6 hours
d.20
e.4
Step-by-step explanation:
4a² − 20a + 25. is the answer.
Answer:
99
Step-by-step explanation:
Geometry is not my best subject but here's what I did:
The sum of the angles in a triangle is 180 so if we add 4 and 8 we can get angle 6
--> 180 - (37+62)
--> 180 - 99
---> 81
The sum of the angles on a line intersected at a point = 180
180 - 81 = Angle 5
Angle 5 = 99
Since the ball will reach the maximum height of 18 meters after 1 second, meaning after 1 second it will start to go down. So will expect that the height will be lower than 18 m after 1.5 s.
f(x) = –10x2 + 20x + 8
f(x) = –10(1.5^2) + 20(1.5) + 8
f(x) = 15.5 m