Answer:
The correct option is b: 6 seconds.
Step-by-step explanation:
The formula is:
Where:
t: is the time
h: is the height = 384 ft
When the stone hit the ground, h = 0
To solve the above quadratic equation we need to use the following formula:
(1)
Where:
a: is the coefficient of t² = -16
b: is the coefficient of t = 32
c: is the independent term = 384
By entering the above values into equation (1) we have:
Since we can not take the negative value of time (t₂) equal to -4, the answer is 6 seconds.
Therefore, the stone will hit the ground in 6 seconds. The correct option is b: 6 seconds.
I hope it helps you!
Answer:
huh?
Step-by-step explanation:
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Answer:
(0,5) (1/2, -1) (1, 3)
Step-by-step explanation:
We basically plug in all of these points.
(0,0) --> 0=8(0)-5 <-- This is not true, because 0 ≠ -5
(0,5) --> -5=8(0)-5 <-- This is true, because -5 = -5
(1/2, -1) --> -1=8(1/2)-5 <-- This is true because -1 = -1
(8, -5) --> -5=8(8)-5 <-- This is not true because -5 ≠ 59
(1, 3) --> 3=8(1)-5 <-- This is true because 3 = 3
X=27. you find this out by first adding seven to each side so it becomes 2/3 x = 11+7 then you simplify that to 2/3x = 18. Then you multiply each side by the reciprocal of 2/3 so 3/2. This leaves x by itself. 18(3/2) is 27 so x = 27
Find the mean of the following<br>
data set.<br>
1,1,2,4,6,7,7,8,9,10,12,13,17,17,18
Anit [1.1K]
Answer: The median is 8
Step-by-step explanation: