Answer: someone plz help
Step-by-step explanation:
The time that the ball is in the air is 2x the time that it takes to reach the maximum value.
In order to find the time at the max value you use the equation -b/2a where b is the value attached to the t and a is the value attached to t^2.
therefore, the time at the max value is -180/(2)(-16)=5.625 seconds
Total time= (5.625)(2)=11.25
3-2 i know this by heart trust me i did the problem on paper hope it helps
Step-by-step explanation:
Using the identity a² - b² = (a + b) (a - b)
=> (3 {p - q})² - (5 {q - r})²
=> [(3 {p - q}) + (5 {q - r})] [(3 {p - q}) - (5 {q - r})]
=> [(3p - 3q) + (5q - 5r)] [(3p - 3q) - (5q - 5r)]
=> [3p - 3q + 5q - 5r] [3p - 3q - 5q + 5r]
=> [3p + 2q - 5r] [3p - 8q + 5r]
Hey there :)
The given are 104, 137, 154, 131 and we have to find x
The mean value is 130
Mean = sum of all values divided by total number of values
130 =

130 x 5 = 526 + x
650 = 526 + x
124 = xYour answer will be option
A) 124