Answer:
So (1,3) is <em>a</em> vertex (out of two) of the hyperbola.
Step-by-step explanation:
The vertices are marked by the dot on the hyperbola.
They are (1,3) and (1,-7).
However, (1,-7) is not on the list of answer choices, but (1,3) is.
So (1,3) is a vertex (out of two) of the hyperbola.
Answer:
12
Step-by-step explanation:
plug in a -3 in every x value. two negatives cancel making a positive. remember that
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.
SA = surface area of the sphere
SA = 4*pi*r^2
200 = 4*pi*r^2
200 = 4*3.14*r^2
200 = 12.56*r^2
12.56*r^2 = 200
r^2 = 200/12.56
r^2 = 15.9235668789809
r = sqrt(15.9235668789809)
r = 3.99043442233811
The radius is r = 3.99043442233811
so the diameter is
d = 2*r
d = 2*3.99043442233811
d = 7.98086884467621
Answer: 7.98086884467621
Round this however you need to
35 people have red hair. Do 700 times 0.05.