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3 years ago

Evaluate the expression ab for a = 10 and b = 4.

Mathematics

2 answers:

xz_007 [3.2K]3 years ago

7 0

A x B

= 10 x 4

= 40

Therefore answer is 40

PtichkaEL [24]3 years ago

4 0

a/b

= 10/4

= 5/2

Hope this helps... :)

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The formula $s = r\, \theta$ relates the arc length $s$ of a sector of angle $\theta$ (in radians) to the radius $r$ of this sector.

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$\begin{aligned} r&= \frac{s}{\theta} \\ &\approx \frac{36\; \rm mm}{2.22} \\ &\approx 16.2\; \rm mm\end{aligned}$ .

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$\begin{aligned}& 2\, r + s \\ =\; & 2 \times 16.2\; {\rm mm} + 36\; {\rm mm} \\ =\; & 68.5\; \rm mm\end{aligned}$ .

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