...equal to abc 6. Prove that Qa- - 462 : 15a2 - 31a6 + 1462 : : 15a2 + Зla6 + 1462 : 25a2 - 4962. 7. The pressure of the wind on a plane surface varies...wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at a rate of 15 miles per hour. Find the velocity of the wind when the...

...equal to a 6 с 6. Prove that 9a2- 462 : 15a* - Зla6 + 146* : : l5a' + Зla6 + 146s : 25a2 - 4962. 7. The pressure of the wind on a plane surface varies...jointly as the area of the surface and the square of the wind,s velocity. The pressure on a square foot is 1 Ib. when the wind is moving at a rate of 15 miles...

...the terms. 11. Explain what is meant by one quantity varying jointly as two others. The pressure of wind on a plane surface varies jointly as the area of the surface, and the square of the wind-s velocity. The pressure on a square foot is 1 lb. when the wind is moving at the rate of 15 miles...

...of the areas of two circles whose diameters are l£, and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at the rate of 15 miles per hour; find the velocity of the wind when...

...while x varies as z2, and у varies inversely as и ; show that и varies as г. 12. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is i Ib. when the wind is moving at the rate of 15 miles per hour. Find the velocity of the wind when...

...the terms. n. Explain what is meant by one quantity varying jointly as two others. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at the rate of 15 miles per hour. Find the velocity of the wind when...

...started. 5. Prove that— C (a + b + e) (ab + be + en) - abc = (a + b)(b + c) (c + a). 8. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is l Ib. when the wind is moving at the rate of 15 miles per hour ; find the velocity of the wind when...

...will fall through 144 feet in 3 seconds. Find how far it will fall in 2 seconds. 17. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 pound when the wind is moving at the rate of 15 miles per hour. Find the velocity of the wind when...

...are l£, and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly аз the area of the surface, and the square of the wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at the rate of 15 miles per hour; find the velocity of the wind when...

...of the areas of two circles whose diameters are 1 \ and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 pound when the wind is moving at the rate of 15 miles per hour : find the velocity of the wind when...