exam Maths Puzzle Numerical Ability

simplify

-4/x^2-2x-15 minus 2/x-5

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exam Other Question

B4

Find the total surface area and volume of each solid object. Round to the three significant digit.

the object is a frustums of cone (frustums)

top radius:4.5'
height Find the equation of the line that passes through (5,-3) and is parallel to the line 3x + 4y = 8