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svet-max [94.6K]
3 years ago
15

A=1/2(B+b)h ; solve for b.

Mathematics
1 answer:
Tju [1.3M]3 years ago
5 0

Answer:

b = \frac{2A -Bh}{h}

Step-by-step explanation:

The given relation is :

A = \frac{1}{2}  (B + b)h

We want to solve for b

We multiply both sides by 2 to get

2A = (B + b)h

Divide through by h

\frac{2A}{h}  =B + b

Subtract B from both sides

\frac{2A}{h}  - B  = b

We now simplify the left hand side to get

\frac{2A -Bh}{h}=b

Or

b = \frac{2A -Bh}{h}

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Answer:

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Step-by-step explanation:

Using the z-scores of the Shangai tower and the Marina, we can calculate their heights

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The reasoning behind this can be mathematically explained in terms of the z-score. The standard score of the heights of the building give us an insight as to how tall the buildings can be.

Since they are in the same population i.e building heights, the higher the z-score, the higher the height of the building. A positive z-score indicates a height taller than the average while a negative z-score indicate a height lower than the average height which is the mean

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Step-by-step explanation:

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