If we want to write the function in vertex form:
f ( x) = 6 x² + 5 - 42 x = 6 x² - 42 x + 5 = 6 ( x² - 7 x ) + 5 ...
First step is: C ) write the function in standard form ( y = ax² + b x + c )
Answer:
Step-by-step explanation:
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Probability of at-least 2 girls = Probability of 2 girls + Probability of 3 girls + Probability of 4 girls + Probability of 5 girls = 1 - (Probability of no girl + probability of 1 girl)
We know:
<span>probability when no girl = 5C0 * (1/2)^0 *(1/2)^5 = 0.03125
probability when one girl = 5C1 * (1/2)^1 *(1/2)^4 = </span>0.15625<span>
probability when at least 2 girls = 1-(0.03125+</span>0.15625<span>)
= 0.8125(approx)
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