Answer:It would be 8ft ??
Step-by-step explanation: 3ft = 8ft
Answer:
y2=-8x is what's graphed so B.
Step-by-step explanation:
(I think you mistyped the choice)
We need to 'standardise' the value of X = 14.4 by first calculating the z-score then look up on the z-table for the p-value (which is the probability)
The formula for z-score:
z = (X-μ) ÷ σ
Where
X = 14.4
μ = the average mean = 18
σ = the standard deviation = 1.2
Substitute these value into the formula
z-score = (14.4 - 18) ÷ 1..2 = -3
We are looking to find P(Z < -3)
The table attached conveniently gives us the value of P(Z < -3) but if you only have the table that read p-value to the left of positive z, then the trick is to do:
1 - P(Z<3)
From the table
P(Z < -3) = 0.0013
The probability of the runners have times less than 14.4 secs is 0.0013 = 0.13%
The answer is:
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Explanation:
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Using a scientific calculator;
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Find: "Ten times the quotient of 104,104,104 and 88" ;
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That is; find: 10 * [ (104,104,104) / 88 ] ;
or; write as: 10 * [ 1,183,001.1818181818181818 ] ;
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= 11,830,011.818181818181818...
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