 | James Morford Taylor - 1900 - 504 σελίδες
...of x varies as the square of y, and if x = 3 when у = 5; find the equation between x and y. 11. If the area of a circle varies as the square of its radius, and if the area of a circle is 154 square feet when the radius is 7 feet ; find the area of a circle whose... | |
 | Great Britain. Parliament. House of Commons - 1900 - 686 σελίδες
...— . A i *9. II b + c + d:c + d + a = d+a + b:a+b + c, prove that a*-d*:ad = b*-cs:bc. Assuming that the area of a circle varies as the square of its radius, find what fraction of the radius of a grindstone must be ground away so that only half the grindstone... | |
 | Sir Joseph Burn - 1902 - 276 σελίδες
...between the two dotted lines as compared with that of the whole circle having the radius A to E. Now the area of a circle varies as the square of its radius, therefore the ratio required (3)2 "V That is, the odds in favour of the coin falling clear of the hole... | |
 | Louis Parker Jocelyn - 1902 - 460 σελίδες
...occupied in falling. If a ball falls 402.5 feet in 5 seconds, how far will it fall in 10 seconds ? 14. The area of a circle varies as the square of its radius. The area of a circle whose radius is 10 feet is 314.159265. Find the area of a circle whose radius... | |
 | Middlesex Alfred Bailey - 1902 - 336 σελίδες
...does the area of a circle vary ? Let A = area ; then A = wr* and — = ir. Since я- is a constant, the area of a circle varies as the square of its radius. 6. The volume of a sphere equals $ irr3. How does the volume of a sphere vary ? 7. The volume of a... | |
 | Leonard Eugene Dickson - 1902 - 242 σελίδες
...air in an air-tight room, when the temperature is raised from 0° to 40° Centigrade? 10. Given that the area of a circle varies as the square of its radius, show that a circle of 5 inches radius equals the sum of two circles of radii 3 and 4 inches. CHAPTER... | |
 | Edward Mann Langley, S. R. N. Bradly - 1903 - 280 σελίδες
...circle and n — 1 concentric rings, the areas of which and of the central circle are all equal. If the area of a circle varies as the square of its radius, and the cost of painting the target varies as re(re + l), show that the cost of paint for any ring varies as... | |
 | Charles Orpen Tuckey - 1903 - 204 σελίδες
...varies as the depth or that (ii) the increase of temperature varies as the increase of depth ? (11) The area of a circle varies as the square of its radius. Given that a circle of radius 5-75 inches has area 103'86 square inches, find the area of a circle... | |
 | Edward Rutledge Robbins, Frederick Howland Somerville - 1904 - 188 σελίδες
...varies inversely as (2 x + 1) (ж — 3) and у = — ¿ when ж = 2, find ж when у = 1-J. 16. If the area of a circle varies as the square of its radius, and the area of a circle whose radius is 7 is 154, find the area of the circle whose radius is 10. 17. Find the radius of the circle equivalent... | |
 | John Henry Tanner - 1904 - 398 σελίδες
...= 7. 7. If x varies inversely as y, and x = 10 when у = 3, what is the value of x when у = 5? 9. The area of a circle varies as the square of its radius, and the area of a circle whose radius is 10 ft. is 31-1.10 sq. ft. What is the area of a circle whose radius is 5 ft.? of one whose radius is... | |
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Given that the area of a circle varies as the square of its radius... 
