The probability that a normally distributed data with a mean of μ and a standard deviation of σ is less than a value x is given by:
Given that μ = 16.5 and σ = 0.804984 and that the probability that the <span>mean oil-change time being at or below the
sample mean for which there is an area of 0.10 to the left under the
normal curve, then:
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Distribute each term in one parenthesis to the other terms in the other parenthesis.
(x - 2) (2x + 3)
First, distribute x. When distributing, multiply
x(2x) = 2x²
x(3) = 3x
Next, distribute the other term, -2. Remember to change the signs.
-2(2x) = -4x
-2(3) = -6
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2x² + 3x - 4x - 6
Combine like terms
3x - 4x = -x
2x² - x - 6
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2x² - x - 6 is your answer
hope this helps
So every 5 inches in height, there are 32 marbles. You want to know how many marbles there are per 18 inches in height.
To get from 5 to 18, you multiply by 3.6.
Do the same thing to the numerator; 32 × 3.6 = 115.2.
Since 0.2 marbles is no marbles, you round down.
There are 115 marbles in the box.
♡ Hope this helps! ♡
❀ 0ranges ❀
Answer:
800
Step-by-step explanation:
Five students brought 8 boxes with 10 pencils each box
8×10×5 = 400
10 students brought 8 boxes with 5 pencils each.
10×8×5=400
Total pencils = 400 + 400 = 800 pencils
Answer:
The distance is
Step-by-step explanation:
First we need to find the slope of the line and the the its equation, for the slope we use the formula:
Using the line equation we have that:
(1)
Converting the line equation (1) into its general form
Finally we use the distance between a line and point formula given by
where A, B and C are the coefficients of the line and x and y are the coordinates of the point P