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1+1/1+1/x |
2008-05-21 |
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From nadean:
1+1/1+1/x
Answered by Penny Nom. |
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Throwing a ball on the moon |
2008-05-21 |
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From leria:
equation for motion of moon is h=2.67t^2 + vt + s
equation for earth h=-16t + vt + s
Suppose you are on an outpost on the moon and Jan is back on Earth. Both people toss a ball from a height of 96 feet with an initial velocity of 16 feet per second. How much longer will your ball stay in motion on the moon than Jan's on the earth?
Math Central,
I'm having a difficult time understanding which numbers to plug into the formula.
Answered by Stephen La Rocque. |
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$16000 at 7% per annum for six months |
2008-05-21 |
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From Delbert:
If my principal balance if $16000.00 and I paid 7% interest per annum but only kept the loan for 6 months How much interest would I owe after 6 months.
Answered by Harley Weston. |
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55 mi/h for 4 h |
2008-05-21 |
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From brenda:
mary drove her car at 55 mi/h for 4 h. Use the formula d = rt (where d is the distance traveled, r is the rate of travel and t is the time traveled) to determine how far mary traveled.
Answered by Penny Nom. |
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A weird shaped lot |
2008-05-21 |
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From James:
Need to find square foot of a residential lot on a cul-de-sac. Weird triangular shape. Measurements : 126.18 170.08 138.2 48.4
Answered by Harley Weston. |
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A regular hexagon |
2008-05-20 |
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From Martin:
Given a regular hexagon with center on the origin of an x-y plane with coordinate (r,0) on the x axis, we are to express the coordinates of "A" located at 120 deg from (r,0) in terms of "r".
Answered by Janice Cotcher. |
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The angles of an irregular pentagon |
2008-05-20 |
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From victoria:
The sum of the measure of two angles is 240. If the remaining angles are congruent, what is the measure of each angle?
Answered by Penny Nom. |
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Percentage difference |
2008-05-20 |
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From Cavell:
Hi, the projected cost was 71,700. The actual cost was 56,876. What is the percent difference?
Answered by Penny Nom. |
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The cube of -2y in exponential form |
2008-05-19 |
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From Xiu:
I dont get this question..
Write "the cube of -2y" in exponential form. I know the answer is -(2y)^2 but i really don't understand why. Can you explain how to do this whole problem for me?
Answered by Leeanne Boehm. |
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GCF |
2008-05-19 |
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From Brenda:
what is GCF????? =c
Answered by Leeanne Boehm. |
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Converting a decimal to a fraction |
2008-05-19 |
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From judy:
please explain how to get from the decimal number .3437 to the fraction 11/32
Answered by Leeanne Boehm. |
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Guy wires for a tower |
2008-05-19 |
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From larissa:
a radio tower 500 feet high is located on the side of a hill ( the hill has an inclination to the horizontal of 5 degrees.) How long should two guy wires be if they are connected to the top of the tower and are secured at two points 100 feet directly above ( up the hill ) and directly below the base of the tower?
Answered by Penny Nom. |
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A triangle inscribed in a semicircle |
2008-05-19 |
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From Larissa:
Find the area of the shaded region outside of a triangle inscribed (meaning the all three points of the triangle are on the circle ) in a half circle of diameter 10 inches, if one side of the triangle is the diameter and the other side is 8 inches long. (A triangle that is inscribed in a triangle is a right triangle by definition.)
Answered by Penny Nom. |
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Elevation gain |
2008-05-18 |
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From Mark:
How do you calculate elevation gain on a treadmill? e.g. 5.0 miles (26,400ft) @ 15% incline.
I have been estimating it as 26,400 x .15 = 3,960 ft of elevation gain.
Hopeful Mount Rainier Climber
Answered by Victoria West. |
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A hemisphere and a cylinder |
2008-05-18 |
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From Libby:
A giant scoop, operated by a crane, is in the shape of a hemisphere of radius 24 inches. The scoop is filled with molten steel. The steel is then poured into a cylindrical storage tank with diameter 32 inches. How high will the molten steel rise?
I got the volume of the hemisphere and the volume of the cylinder, but I'm not exactly sure what to do next.
Answered by Penny Nom. |
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