There are five marbles in a bag: four are blue, and one is red. What is the probability that blue Marble gets picked?
2 answers:
Probability of picking blue marble =
Step-by-step explanation:
Given,
Number of blue marbles = 4
Number of red marble = 1
Total number of marbles = 5
To find the probability of picking blue marble
Formula
Probability of an event = (number of occurrence of an event) ÷ (total number of events)
So,
Probability of picking blue marble =
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Answer:
d= 12.50 miles
Step-by-step explanation:
Kinematic equation of uniform motion (constant speed) :
v= d/t Formula (1)
v: velocity in miles per hour (mph)
d: distance in miles
t: time in hours
Data
v= 50 mph
t= 0.25 hours
Problem development
We replace data in formula (1)
50 mph=d/0.25 hour
d= 12.5 miles
d= 12.50 miles
When we rotate a figure and there is no change in the shape of the figure then it has rotational symmetry.
We know that the order of rotation for a square is 4.
Hence, we have
Thus, the angle of rotational symmetry of square are
Hence, the minimum angle of rotational symmetry is
Therefore, the minimum angle of rotational symmetry for a square is 90 degrees.