Answer:
Center, radius, chord, diameter... are Words related to circle
The answer is 3 because 3 feet below sea level is -3 and the integer for -3 is 3
-hope this helped-
Answer:
y = 2x + 5
Step-by-step explanation:
First find the slope:
5-7/0-1 --> -2/-1 --> (2)
Now use the point-slope form to find the slope-intercept form:
y-7 = 2 ( x - 1)
y - 7 = 2x - 2 add seven to both sides...
y = 2x + 5
Answer:
The answer is 1.) None
Step-by-step explanation:
Hope this helps you :)
Let <em>X</em> be the random variable representing the amount (in grams) of nicotine contained in a randomly chosen cigarette.
P(<em>X</em> ≤ 0.37) = P((<em>X</em> - 0.954)/0.292 ≤ (0.37 - 0.954)/0.292) = P(<em>Z</em> ≤ -2)
where <em>Z</em> follows the standard normal distribution with mean 0 and standard deviation 1. (We just transform <em>X</em> to <em>Z</em> using the rule <em>Z</em> = (<em>X</em> - mean(<em>X</em>))/sd(<em>X</em>).)
Given the required precision for this probability, you should consult a calculator or appropriate <em>z</em>-score table. You would find that
P(<em>Z</em> ≤ -2) ≈ 0.0228
You can also estimate this probabilty using the empirical or 68-95-99.7 rule, which says that approximately 95% of any normal distribution lies within 2 standard deviations of the mean. This is to say,
P(-2 ≤ <em>Z</em> ≤ 2) ≈ 0.95
which means
P(<em>Z</em> ≤ -2 or <em>Z</em> ≥ 2) ≈ 1 - 0.95 = 0.05
The normal distribution is symmetric, so this means
P(<em>Z</em> ≤ -2) ≈ 1/2 × 0.05 = 0.025
which is indeed pretty close to what we found earlier.
