Can someone help with this as soon as possible thanks
2 answers:
Answer:
72, 144, 216, 288
Step-by-step explanation:
A geometric figure has rotational symmetry if the figure appears unchanged after a rotation about a point by an angle that is between 0° and 360°. 0° and 360° are excluded since they represent the original position, nothing new happens. The angles of rotational symmetry will be factors of 360.
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Answer:
The simplified form of the given expression is (2x-1).
Step-by-step explanation:
Consider the given expression is
According to the Inverse Properties of In
In the given expression the power of e is (2x-1).
Using the Inverse Properties of In, we get
Therefore, the simplified form of the given expression is (2x-1).
Answer:
Step-by-step explanation:
Probability refers to chance of happening of some event.
Conditional probability is the probability of an event A, given that another event B has already occurred.
denote the two boxes.
In box :
No. of black balls = 1
No. of white balls = 1
In box :
No. of black balls = 2
No. of white balls = 1
Let B, W denote black and white marble.
So, probability that either of the boxes is chosen is
Probability that a black ball is chosen from box =
Probability that a black ball is chosen from box
To find:probability that the marble is black
Solution:
Probability that the marble is black =