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1+1/1+1/x |
2008-05-21 |
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nadean pose la question :
1+1/1+1/x
Penny Nom lui répond. |
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Throwing a ball on the moon |
2008-05-21 |
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leria pose la question :
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.
Stephen La Rocque lui répond. |
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$16000 at 7% per annum for six months |
2008-05-21 |
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Delbert pose la question :
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.
Harley Weston lui répond. |
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55 mi/h for 4 h |
2008-05-21 |
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brenda pose la question :
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.
Penny Nom lui répond. |
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A weird shaped lot |
2008-05-21 |
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James pose la question :
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
Harley Weston lui répond. |
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A regular hexagon |
2008-05-20 |
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Martin pose la question :
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".
Janice Cotcher lui répond. |
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The angles of an irregular pentagon |
2008-05-20 |
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victoria pose la question :
The sum of the measure of two angles is 240. If the remaining angles are congruent, what is the measure of each angle?
Penny Nom lui répond. |
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Percentage difference |
2008-05-20 |
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Cavell pose la question :
Hi, the projected cost was 71,700. The actual cost was 56,876. What is the percent difference?
Penny Nom lui répond. |
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The cube of -2y in exponential form |
2008-05-19 |
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Xiu pose la question :
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?
Leeanne Boehm lui répond. |
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GCF |
2008-05-19 |
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Brenda pose la question :
what is GCF????? =c
Leeanne Boehm lui répond. |
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Converting a decimal to a fraction |
2008-05-19 |
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judy pose la question :
please explain how to get from the decimal number .3437 to the fraction 11/32
Leeanne Boehm lui répond. |
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Guy wires for a tower |
2008-05-19 |
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larissa pose la question :
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?
Penny Nom lui répond. |
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A triangle inscribed in a semicircle |
2008-05-19 |
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Larissa pose la question :
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.)
Penny Nom lui répond. |
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Elevation gain |
2008-05-18 |
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Mark pose la question :
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
Victoria West lui répond. |
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A hemisphere and a cylinder |
2008-05-18 |
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Libby pose la question :
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.
Penny Nom lui répond. |
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