exam Maths Puzzle Numerical Ability

Complete the statements, always, sometimes or never.

A right triangle will ? have an acute angle.

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exam Other Question

i need help answering this equation with factoring:

"the length of a rectangle is 6 meters more than twice the width. if the area of the rectangle is 140 meters^2,find the dimensions."

i tried but i couldnt get it. I have been given the roots 2+sqrt7 and 2-sqrt5. How do I find the "quadratic equation with integral coefficients"?

I know that the formula is (x-r1)(x-r2)= 0