Is 5_6 greater than less than or equal to 3/4
1 answer:
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Answer:
x = 3.4
Step-by-step explanation:
given,
mean = 3.7 inches
standard deviation = 0.5
we want find the value of Q₁ = ?
the value of x such that, P(X < x)= 0.25
= >
= >
=>
=>
=> x = -0.67 x 0.5 + 3.7
=> x = 3.365
=> x = 3.4
Answer:
6.34 seconds.
Step-by-step explanation:
The object will hit the ground when h = 0.
-16t^2 + 90t + 72 = 0
8t^2 - 45t - 36 = 0
We can then use the quadratic formula to solve.
[please ignore the A-hat; that is a bug]
=
=
=
(45 - 56.36488268) / 16 = -0.7103051678
(45 + 56.36488268) / 16 = 6.335305168
Since the time cannot be negative, the object will hit the ground after about 6.34 seconds.
Hope this helps!