2 years ago

Simplify the expression 7(3+2p+7).

Mathematics

2 answers:

ipn [44]2 years ago

6 0

Answer: 14p +70

Step-by-step explanation:

FromTheMoon [43]2 years ago

5 0

Answer:

84p

Step-by-step explanation:

3+2=5 +7=12x7+84

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The measure of an exterior angle of a regular polygon is 45. What is the interior angle and how many sides?

Brilliant_brown [7]

Check the picture below.

$\bf \textit{sum of all exterior angles in a polygon}\\\\ n\theta = 360~~ \begin{cases} n=\stackrel{number~of}{sides}\\ \theta =angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ 0=45 \end{cases}\implies n(45)=360\implies n=\cfrac{360}{45}\implies \stackrel{\textit{an octagon}}{n=8}$