Answer:
B
Step-by-step explanation:
h(t)=-4.9t^2+ v_0t+h_0
v_0 represents initial velocity
h_0 represents initial height
we use -4.9 for the coefficient of t^2 because we dealing with meters and seconds
(If it was feet and seconds it would have been -16 instead of -4.9)
Anyways v_0 is 15m/s (We will just put 15 to make it look less complicated)
and from the ground means the initial height was h_0=0
So the answer is B.
Answer:
b) Complement of spinning any number less than 3 is Spinning 3 or 4.
Step-by-step explanation:
COMPLIMENT of any Set A is the set of all the elements which are in the sample space but NOT IN SET A.
Here, Event E = Spinning a spinner with 4 parts and getting a number less than 3.
Here, Sample Space = {1,2,3,4}
Also, as outcomes is LESS THAN 3, ⇒ E = {1 ,2}
Now, Compliment E = Sample Space - { Elements in set E}
= {1,2,3,4} - {1 ,2}
or, E' = { 3,4}
Hence, complement of spinning any number less than 3 is Spinning 3 or 4.
