<span>Pi/4 is the answer
Because sin(Pi/2)=1 and arctan (1)=Pi/4</span>
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Answer:
x=7/10
Step-by-step explanation:
Let's solve your equation step-by-step.
3x+5=12−7x
Step 1: Simplify both sides of the equation.
3x+5=12−7x
3x+5=12+−7x
3x+5=−7x+12
Step 2: Add 7x to both sides.
3x+5+7x=−7x+12+7x
10x+5=12
Step 3: Subtract 5 from both sides.
10x+5−5=12−5
10x=7
Step 4: Divide both sides by 10.
10x10=7/10
x=7/10
Answer: 5/14
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Explanation:
A = event of drawing a blue card on the first selection
B = event of drawing a blue card on the second selection
P(A) = probability of drawing a blue card on the first selection
P(A) = (number of blue cards)/(number of cards total)
P(A) = 5/8
P(B|A) = probability of getting a second blue card GIVEN the first card is blue
P(B|A) = (number of blue cards left after event A happens)/(number of cards left)
P(B|A) = 4/7
The fact that B depends on A is very important. This happens because the first card is not replaced
Multiply the fractions
P(A)*P(B|A) = (5/8)*(4/7)
P(A)*P(B|A) = (5*4)/(8*7)
P(A)*P(B|A) = 20/56
P(A)*P(B|A) = 5/14
Which is why the answer is the fraction 5/14
Answer:
c
Step-by-step explanation: