Step-by-step explanation:
in option c
rectangle have four right angled and two pair of parallel side
in option b
only one pair of parallel side
The probability of choosing cards either Q or R when a card is drawn from a deck of 8 cards is 0.25.
Given that a card is randomly chosen from 8 cards shown in figure.
We have to calculate the probability of choosing either Q or R when a card is drawn from those 8 cards.
Probability means calculating the likeliness of happening an event among all the events possible. It lies between 0 and 1. It cannot be negative.
Number of cards=8
Number of repeated cards=0
Number of cards showing Q and R =1 each.
Probability of getting Q or R is P(X=Q)+P(X=R)
= 1/8+1/8
=2/8
=1/4
=0.25
Hence the probability of getting either P or Q when a card is drawn from 8 cards is 0.25.
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Answer:
The simple interest that said investment yielded was 3.75% per year.
Step-by-step explanation:
Given that Sarah's current account balance is $ 2,600, and she made a single lump sum amount of $ 2,000 eight years ago into the account, to calculate the equivalent simple interest rate (quoted annually) that she earned the following calculation must be performed:
(2,600 - 2,000) / 8 = X
600/8 = X
75 = X
2,000 = 100
75 = X
75 x 100 / 2,000 = X
7,500 / 2,000 = X
3.75 = X
Thus, the simple interest that said investment yielded was 3.75% per year.
Answer:
Step-by-step explanation:
A tangent forms a right angle with the centre of circle at the point it touches the circumference. i.e. OAB = 90 degrees
If AOB = 55 degrees, then ABO = 90 - 55 = 35 degrees
