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The diagram shows three identical cuboids in a tower.
The height of one cuboid is 6.5cm, correct to the nearest millimetre.
Work out the upper bound of the height of the tower

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles. i'm desperate.

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?