Answer:
The ball reaches a height of 29.25 ft after 1.125 seconds
Step-by-step explanation:
The maximum height of a parabola can always be found by looking for the vertex. You can find the x value (or in this case the t value) of a vertex by using -b/2a in which a is the coefficient of x^2 and b is the coefficient of x.
-b/2a
-(36)/2(-16)
-36/-32
1.125 seconds
Now to find the height, we input that value in for t
h = -16t^2 + 36t + 9
h = -16(1.125)^2 + 26(1.125) + 9
29.25 feet
Answer:
A
Step-by-step explanation:
It just is
Answer:
A.
Step-by-step explanation:
Answer:
7218°C
Step-by-step explanation:
difference between the two numbers 7000 and -218 is
7000-(-218) = 7000+218 = 7218
(NOTE: <em>When conditions like this arise, when two minus (-) sign come together, replace the two minus with a plus sign and open the brackets. When two plus sign occurs together, do not replace it with a minus sign, just replace with a single plus sign</em>)
Answer:
Direct variation is the relationship between two variables, whereby if one variable increases, the other also increases and vice versa. If one variable increases if the other decreases, it is called inverse variation.
Step-by-step explanation:
