a cylindrical pipe is 2.8 m long its intenal radius is 3.5 and its external radius is 5cm calculate. a.the volume of water in litres that the pipe can hold when full. corrext to 1 dp taking π= 22/7.b. the volume of water in cm of the metal used in making the pipe​

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step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.