Answer & Step-by-step explanation:
We are given that m∠1 = m∠2. We are to prove that line l is parallel to line m. So, let's make a proof. Your first statement should always be the given statement. You are given the statements. All we have to do is find the reasons for those statements.
- m∠1 = m∠2 → Given
- m∠1 = m∠3 → Vertical angles are equal
- m∠2 = m∠3 → Substitution
- l ║m → If corresponding angles are equal, then lines are parallel
Answer:
(x-10)(x+10)
Step-by-step explanation:
The correct option is B.
Thus, 68% percentage of the balls weigh within one standard deviation of the mean.
<h3>What is the empirical formula rule?</h3>
The Empirical Rule indicates that 99.7% of data that are observed to have a normal distribution fall within 3 standard deviations of the mean. According to this formula, 68 percent of the data are within one standard deviation, 95 percent are within two standard deviations, and 99.7 percent are within three standard deviations of the mean.
<h3>According to the empirical formula rule:</h3>
Because approximately 68% of the data falls within a standard deviation of the mean, according to the empirical rule, 68% of the balls' weights fall within that range.
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I understand that the question you are looking for is:
The weights of tennis balls are normally distributed, with the mean being 5.15 ounces and the standard deviation being 0.10. what percentage of the balls weigh within one standard deviation of the mean
A. 50%
B. 68%
C. 95%
D. 99.7%
Answer:
Step-by-step explanation:
You’re supposed to use the points (4,-3) and (1,-4).
Slope = (difference of y-coordinates)/(difference of x-coordinates)
= (-3 - (-4))/(4 - 1) = 1/3
X*2 = 2x
Coefficient is 2.
