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Answer:
quadrant 3
Step-by-step explanation:
Cuz x and y are in the negative if they’re both less than 0
Answer:
3x - 4 and 2x + 15
Step-by-step explanation:
AB = 7 1/2
BC = 2 1/4
DE = 1 1/4
AB = GH + EF + CD
AH + FG = DE + BC
The perimeter is AB + BC + CD + DE + EF + FG + GH + HA.
AB + BC + CD + DE + EF + FG + GH + HA =
= AB + BC + DE + AB + DE + BC =
= 2AB +2BC +2DE =
= 2 · 7 1/2 + 2 · 2 1/4 + 2 · 1 1/4 =
= 15 + 4 2/4 + 2 2/4 =
= 15 + 4 1/2 + 2 1/2 =
= 19 1/2 + 2 1/2 =
= 22 [m]
Answer:
81.85.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation , the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Suppose the mean height for men is 70 inches with a standard deviation of 2 inches.
This means that
What percentage of men are between 68 and 74 inches tall?
The proportion is the p-value of Z when X = 74 subtracted by the p-value of Z when X = 68.
X = 74
has a p-value of 0.9772.
X = 68
has a p-value of 0.1587.
0.9772 - 0.1587 = 0.8185
0.8185*100% = 81.85%.
Thus the percentage is 81.85%, and the answer is 81.85.