Answer:
q = 40
Step-by-step explanation:
multiply 5 on boths sides:
q = 40
to check:
= 8
The Young family has a fish tank with different colors of fish. There are 8 black fish, 5 white fish and 3 gold fish.
2 answers:
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Answer:
68.69 m^3
Step-by-step explanation:
Volume of cone =
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Answer:
P(X < 80) = 0.89435.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean and standard deviation
, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
P(X < 80)
This is the pvalue of Z when X = 80. So
has a pvalue of 0.89435.
So
P(X < 80) = 0.89435.