The additive inverse of a number divided by twelve is the same as one less than three times its reciprocal. Find the number.
Additive invers of x -x Reciprocal of x 1/x (-x / 12) 3 (1/x) - 1 -x 12 ( 3/x - 1) -x 36/x -12 -x^2 36 -12x 0 x^2 - 12x + 36 0 (x - 6)(x - 6) x 6
It's called a Windscreen not a Windshield. Some have them others do not. Light training aircraft such as Cessna 152s and 172s DO NOT have wipers. In fact I have had a few good laughs asking students to turn on the wipers in a 172 when it was raining.
Some airplanes do, in fact, have windshield wipers. They are mostly only used when taxiing or flying at low speeds. In most cases, the planes that do have windshield wipers are smaller private planes and ultralight or featherlights(the ones with windshields, they look like hangliders with props). Larger commercial planes and jets do not usually have windshield wipers because of the technology in the cockpit and the speeds at which they travel. Hope this helps.
I thought they had a special coating that makes rain slip off, Id imagine that keeping the wipers on at high speed would be very difficult.
