04/24/16

if the area of the segment is 16p -32 square feet, what us the length of the radius of circle O?
Area of a segment that is 16π - 32 square feet, how do I find the radius?
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04/22/16

f(x)=-x2-2x+8=(x+4)(2-x)
I need help answering this math question please
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04/19/16

trigonomery
Once everybody board Ferris wheel makes one complete revolution every 2.4 minutes. Wheel has diameter 150 feet clears ground 4 feet. Assume new riders board low point cycle.
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04/19/16

Find an equation of the ellipse having foci (0,-2) and (0.2) and sum of focai radii 8. Please help!
I'm so confused with what to do with the focal radii. What purpose does it serve in this problem? For this problem, i got the answer x^2/√12 + y^2/ 16 = 1. I know this answer is wrong. Can... more
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04/19/16

Solve the equation 9 cos (theta) + 4 = 0
9 cos 'theta' + 4 = 0 has two solutions, and it is in degrees (Round to the nearest hundredth).
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04/18/16

Please help with the question below (combinations and permutations)
A club has 30 members under the age of 30 and 40 members who are 30 or older. In how many ways can a slate of officers be chosen if the President and atleast one other officer must be at least 30... more
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04/18/16

Twice the sum of a certain number and 26 is 72
It is a word problem
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04/17/16

Find the best point estimate of the proportion of people who wear hearing aids if, in a random sample of 640 people, 73 people had hearing aids
Solve the proble. Round the point estimate to the nearest thousandth.
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04/15/16

Simplify the complex fraction by using Method II.
2 - 1/3 (fraction) + 15/2 (fraction) _____________________________   17/2 + 6     a. 83/32 b. 55/87 c. 87/55 d. 32/83
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04/14/16

find the exact coefficient of a^15 * b^25 in the binomial expansion of (3a +2b)^40. explain reasoning
find the exact coefficient of a15b25 in the binomial expansion of (3a +2b)40. explain reasoning   Please help this a practice question for my upcoming exam and I am not sure of the... more
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04/13/16

The New Right, which emerged as a major force in American politics by 1980, called for all of the following except
online history class
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04/13/16

A circular garden has a diameter of 12m. By how much should the diameter be increased to triple the area of the garden?
Solve with an equation. Provide a variable for each unknown.
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04/13/16

A pigpen is marked off so that its width is one half of its length. If 4m are subtracted from the length and 24 m added to the width, the pigpen would be square
Find the dimensions of the pigpen. Solve with an equation. Provide a variable for each unknown.
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04/12/16

Find the vertices and foci of the ellipse x^2+2y^2+2x-20y+43=0
Find the vertices and foci of the ellipse x2+2y2+2x-20y+43=0
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04/12/16

Rate/Time math
It takes Mandy 11 hours to proof a chapter of Hawkes Learning Systems' College Algebra book and it takes Bethany 2 hours. How long would it take them working to
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04/12/16

If JM = 4 & JK = 9, find LK
I need help with solving this question as well as the first one! 
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04/12/16

Verify the identities in the equation:
 sinX(cscX+sinXsec2X)=sec2X
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04/11/16

Find the vertices and foci of the ellipse x2+2y2+2x-20y+43=0
Find the vertices and foci of the ellipse x2+2y2+2x-20y+43=0
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04/11/16

Find the equation of the parabola with focus (-4,0) and directrix x=4. What is the length of its latus rectum ?
Find the equation of the parabola with focus (-4,0) and directrix x=4. What is the length of its latus rectum ?
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04/11/16

Derive the equation of the parabola with a focus at (2, 4) and a directrix of y = 8.
A. f(x) = −one eighth (x − 2)2 + 6B. f(x) = one eighth (x − 2)2 + 6C. f(x) = −one eighth (x + 2)2 + 8D. f(x) = one eighth (x + 2)2 + 8
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04/11/16

College math question -words to algebra
Radiator 80% water and 20% antifreeze Fluid leaks out Add 9 quarts water now only 10% antifreeze What is capacity of radiator
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04/11/16

quadratic function whose graph is a parabola containing the given points.
An egg is dropped from the top of a 576-foot-high building. The ball is 432 feet above the ground after 3 seconds, and it reaches level ground in 6 seconds. The height above ground is a quadratic... more
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04/10/16

pythagorean theorem to find x
22-12=x
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04/10/16

Finite math
The heights of a given population are normally distributed with a mean of 5.8 ft and a standard deviation of 0.3 ft. What is the cutoff height to be in the top (tallest) 10% of the population? That... more
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04/10/16

how many of these choices is right?
The angle measure,θ, in radians is ...-found by multiplying two rays of length r meters by a distance of s meters.-the openness of two rays, r meters long compared to the circumference in... more
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