04/15/15
What are the dimensions of such a rectangle with the greatest possible area?
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y= 9-x^2. What are the dimensions of such a rectangle with the greatest possible area?
width=...
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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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04/13/15
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
04/06/15
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
04/05/15
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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04/01/15
finding midpoint
Did I solve this correctly:
E
2x
__________________________________________________
A ...
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Finding ratios of a pentagon ( diagonal to side)
Given a regular pentagon, find the ratio of the diagonal, d, to its side, a.
03/30/15
What is the sum of a 34-term arithmetic sequence where the first term is 14 and the last term is 146?
What is the sum of a 34-term arithmetic sequence where the first term is 14 and the last term is 146?Choose one answer.A. 2,550 B. 2,720 C. 2,890 D. 2,982
03/30/15
The half-life of cesium-137 is 30 years. Suppose we have a 15-g sample.
The half-life of cesium-137 is 30 years.
Suppose we have a 15-g sample.
Find a function m(t) = m02−t/h that models the mass remaining after t years.
m(t) = Find a function m(t) =...
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03/30/15
This exercise uses the radioactive decay model. The burial cloth of an Egyptian mummy is estimated to contain 60% of the carbon-14 it contained originally.
How long ago was the mummy buried? (The half-life of carbon-14 is 5730 years. Round your answer to the nearest ten years.
03/30/15
(1) What is Pr[E | F]? (2) What is Pr[F | E]?
Suppose for this problem that Pr[E] = [ 1/12], Pr[F] = [ 1/6], and Pr[E ∩F′] = [ 0/1].(1) What is Pr[E | F]? (2) What is Pr[F | E]?
03/30/15
If point D is at -2, what are all possible midpoints for line EF?
Point D is 8 units always from point E. Point D is also 10 units away from Point F.
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