Answer:
a=10
Step-by-step explanation:
Step 1: Add 54 to both sides.
9a−54+54=36+54
9a=90
Step 2: Divide both sides by 9.
9a\9 =90\9
a=10
Answer:
The expected win of a coin flip in dollars is 1.25.
Step-by-step explanation:
To find the expected win of a coin flip, we multiply the probability of each outcome by their earnings, and then add them.
We have that:
3/4 probability of heads. If heads, you win $2.
1/4 probability of tails. If tails, you lose $1.
What is the expected win of a coin flip in dollars?
The expected win of a coin flip in dollars is 1.25.
X = 4 cm
the area of trapezium is
A = (4)(6) + (1/2)(4)(9-6)
A =30 cm^2
white black red
king K-W K-B K-R
queen Q-W Q-B Q-R
jack J-W J-B J-R
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