Mathematics, 04.01.2021 08:30 chris1619
A builder wants to build a sump to store water in an apartment. The volume of the
rectangular sump will be modelled by V(x) = x3 + x2 - 4x - 4.
He planned in such a way that its length and breadth are (x + 1) and (x - 2) respectively.
How much he has to dig?
(a) (x + 1]
(b) (x - 2)
(c) (x-3)
(d) (x + 2)
(ii) If x = 4 meter, what is the storage capacity (in litres) of this sump?
(iii) A ladder is kept a point halfway from the base as shown in the figure. It just touches
the top of the sump. Find the length of the ladder, assuming x-42 (correct to 1 dp)
Answers: 2
Mathematics, 21.06.2019 17:00, yoongnzl
Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?
Answers: 1
Mathematics, 21.06.2019 20:00, lucerogon7403
How can you construct perpendicular lines and prove theorems about perpendicular lines
Answers: 3
A builder wants to build a sump to store water in an apartment. The volume of the
rectangular sump...
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