04/15/15
Find Pr[A?B] under each of the following conditions:
events A and B of a sample space S, but assume that Pr[A] = 0.35 and Pr[B] = 0.5. Find Pr[A∪B] under each of the following conditions: (1) If A ⊂ B, then Pr[A∪B] = . (2) If A ∩ B = ∅, then Pr[A∪B]...
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04/15/15
Find the dimensions of the court.
The perimeter of a basketball court is 282 ft. The length is 43 ft longer than the width. Find the dimensions of the court.
What is the width?
__ ft
(Simplify your answer.)
What is the...
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04/14/15
How to write 9x^2+4y^2-54x+8y=59 in ellipse hk form
How to write 9x^2+4y^2-54x+8y=59 in ellipse hk form
04/14/15
Let 8x^3+3x^2-6x-2=0 be a polynomial equation
Use Descartes' Rule of signs to help list the possibilities for the nature of the solutions for the polynomial equation. Do not solve the equation.
List the possible number(s) of negative real...
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04/14/15
1. A bank has determined that the monthly balances
1. A bank has determined that the monthly balances of customers' savings accounts are normally distributed with an average of $1,350 and a standard deviation of $250. What percentage of...
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04/14/15
A week in october the average temperature was 6 degrees celcius. The median was 5 degrees celcius. What was the typical value?
A week in october the average temperature was 6 degrees celcius. The median was 5 degrees celcius. What was the typical value?
04/13/15
The scores for a group of high school students in a national physics examination were
The scores for a group of high school students in a national physics examination were normally distributed with a mean of 86 and a standard deviation of 4. If there were 97,680 students with scores...
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04/13/15
Solve the system of equation by graphing.
What is the solution of the system of equations? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
____(type the order pair)
04/12/15
Finding Solutions
Find the solutions of the equation that are in the interval [0, 2π)
sec5 θ = 4 sec θ
04/11/15
A total investment of $10,500is made into two savings accounts.
A total investment of $10,500 is made into two savings accounts. One account yields 9% simple interest and the other 11% simple interest. He earns a total of $1103.00 interest for the year. How...
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04/11/15
Rationalize the denominator and simplify.
square root of 30/b square root of 5 +5 square root of 6
04/09/15
What is the probability that out of 120 patients with high blood pressure, between 10 and 30 will have adverse side effects?
According to a medical study, 23% of all patients with high blood pressure have adverse side effects from a certain kind of medicine. What is the probability that out of 120 patients with high...
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04/09/15
Probability Stats question
Suppose that company A and company B manufacture and supply equivalentparts to a customer. Among parts from company A, 5% are defective; among company B,7% are defective. Suppose that a randomly...
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04/06/15
Identify the conic that this polar equation represents. Also, give the position of the directix.
Identify the conic that this polar equation represents. Also, give the position of the directix.r=3/(4-2costheta)
The equation defines a circle.The equation defines a parabola. The equation...
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04/06/15
?Identify the conic that this polar equation represents. Also, give the position of the directix.
Identify the conic that this polar equation represents. Also, give the position of the directix.r=4/(2-3sintheta)
The equation defines an ellipse.The equation defines a parabola. The equation...
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04/06/15
What is the 7th term of the geometric sequence where a1 = -4 and a5 = -1,024?
What is the 7th term of the geometric sequence where a1 = -4 and a5 = -1,024?Choose one answer. A. 16,384 B. 4,096 C. -16,384 D. -4,096
04/06/15
Find the probability of at least 2 successes and at least 1 failure.
Assume that n = 13, and p = [ 4/5].Find the probability of at least 2 successes and at least 1 failure.
04/05/15
What is the 41st term of the arithmetic sequence where a1 = 15 and a15 = -41 ?
What is the 41st term of the arithmetic sequence where a1 = 15 and a15 = -41 ?Choose one answer. A. -157 B. -153 C. -149 D. -145
04/04/15
Using the 68-95-99.7 Rule
The length of human pregnancies from conception to birth varies according to a distribution that is approximately normal with a mean of 266 days and a standard deviation of 16 days. Using the...
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04/02/15
What is the sum of a 7-term geometric series if the first term is -11, the last term is -171,875, and the common ratio is -5?
What is the sum of a 7-term geometric series if the first term is -11, the last term is -171,875, and the common ratio is -5?Choose one answer. A. -143,231 B. -36,047 C. 144,177 D. 716,144
04/02/15
What is the sum of an 8-term geometric series if the first term is 12 and the last term is -3,359,232?
What is the sum of an 8-term geometric series if the first term is 12 and the last term is -3,359,232?Choose one answer. A. -3,599,175 B. -3,359,230 C. -3,119,285 D. -2,879,340
04/02/15
What is the probability of selecting 1 mouse of each gender given that both are grey?
For this problem, assume there are 5 grey females, 2 grey males, 4 white females, and 5 white males. As in the book, the biologist selects two mice randomly.
(1) What is the probability of...
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