Answer:
Step-by-step explanation:
Given
Represent Defective Bulbs with D and non good bulbs with G
The probability that one is defective and the other is not can be represented with: (D and G) or (G and D)
Which means that the defective is selected first, then the good one or the good one is selected first, then the defective one.
This is then calculated as:
We used Total - 1 on second selections because it is a probability without replacement
Step 1 should be
Bring the constant to the other side and divide the whole equation with 6 resulting to
x2 + 4x = -7/6
Step 3 should be
Complete the square by dividing the coefficient of x by 2, squaring it and adding the result to both sides of the equation.
x2 + 4x + 4 = -7/6 + 4
Step 4 should be
Factor the quadratic equation and simplify
(x+2)2 = -17/6
Step should be
Get the square root of booth sides and solve for the values of x
x+2 = +-√(102) / 6
So,
x = -2 + √(102) / 6 and x = -2 - <span>√(102) /3
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34 is 85% of
40 Change the percentage into a decimal by dividing over 100:
Divide 34 over 0.85:
His total sales were 402.68 dollars. 700 minus 275 minus 22.31
Answer:
y=2x-5
Step-by-step explanation:
i took algebra
