Square pyramids A and B are similar. In pyramid? A, each base edge is
99
cm. In pyramid? B, each base edge is
33
cm and the volume is
33
cmcubed3.
a. Find the volume of pyramid A.
b. Find the ratio of the surface area of A to the surface area of B.
c. Find the surface area of each pyramid.
In: Math
A company surveyed 1000 people on their age and the number of jeans purchased annually. The results of the poll are shown in the table.
| Jeans Purchased Annually | |||||
|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 or More | Total | |
| Under 12 | 0 | 64 | 79 | 57 | 200 |
| 12-18 | 10 | 69 | 76 | 65 | 220 |
| 19-25 | 21 | 69 | 114 | 56 | 260 |
| over 25 | 31 | 65 | 204 | 20 | 320 |
| Total | 62 | 267 | 473 | 198 | 1000 |
A person is selected at random. Compute the probability of the
following.
(a) The person is over 25 and purchases 3 or more pairs of jeans
annually.
(b) The person is in the age group 12-18 and purchases at most 2
pairs of jeans annually.
(c) The person is in the age group 19-25 or purchases no jeans
annually.
(d) The person is older than 18 or purchases exactly 1 pair of
jeans annually.
In: Math
In: Math
Discuss the differences and similarities in the analytic geometries developed by Fermat and Descartes.
In: Math
Profit Parabolas: The baseball card shop is trying to sell limited baseball cards for $30, yet no one is interested in buying the cards. The owner of the baseball card shop, reduced the price of the cards to help sales. The baseball card owner found for every $1 that, the price was reduced, it created 8 more customers daily( per day). If the baseball card owner reduced the price to $ 20, how many people(customers) will be buying baseball cards each day? What will be the total profit? What should be the price of the baseball cards to create the greatest profit for the owner? Graph the function. Clearly label the graph.
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What are some modern day applications of Pick's theorem?
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Prove that the axiomatic set for Fano's 7 point/line geometry is independent
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Ali sails on a bearing of N20E for 18 km then S85E for 6 km . How far is he from his starting point?
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A pilot flew a jet from City A to City B, a distance of 1600 mi. On the return trip, the average speed was 20% faster than the outbound speed. The round-trip took 5 h 20 min. What was the speed from City A to City B?
It took a crew 3 h 44 min to row 7 km upstream and back again. If the rate of flow of the stream was 1 km/h, what was the rowing speed of the crew in still water?
In: Math
Determine whether you think the given pair of events is independent.
You frequent casinos. You have lost money gambling.
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What are the postulates that define Spherical Geometry?
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1) Create a 3-dimensional figure. Label all of the relevant dimensions. Calculate the area of each face, the number of vertices, the perimeter of each face, the total surface area, and the volume. Express your results in both the English and the Metric system.PLEASE TYPE
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Find the symmetries of the Platonic Solids: Cube, Tetrahedron, Octahedron, Icosahedron, and Dodecahedron.
I. You need to describe with words the planes of reflectional symmetry and identify how many there are in any of the categories found.
II You need to describe with words the axes(lines) of rotational symmetry. For each type of axis, determine how many there are and the order of rotation.
In: Math
Prove the necessary part of Ceva’s Theorem for the case where D and E are ideal but F is ordinary.
The case is where: D and E are ideal but F is ordinary.
Lately I feel as though the people working for Chegg prematurly take on questions they cannot answer. If you do not know the answer that is ok but please do not accept the question if you do not think you can answer it. Someone anonymously accepted this question and then said the description of the case is needed.... It is frustrating to get this response when it is clearly stated in the prompt: for the case where D and E are ideal but F is ordinary. I feel that the only reason they would respond like this is if they have no idea what the question is asking. This is becoming a regular occurence on this site so I feel someone should start monitoring the questions being asked by their so called "expert" tutor. FYI I already soved this problem I just think that this should be brought to Chegg's attention.
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