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2 years ago

HELP imdjhehdhshshssksjish

Mathematics

2 answers:

puteri [66]2 years ago

7 0

Answer:

Step-by-step explanation:

$\dfrac{ab^2 - 5}{10}$

a = 5; b = 9

First, substitute 5 for a and 9 for b.

$\dfrac{ab^2 - 5}{10} =$

$= \dfrac{(5)(9)^2 - 5}{10}$

$= \dfrac{(5)(81) - 5}{10}$

$= \dfrac{405 - 5}{10}$

$= \dfrac{400}{10}$

$= 40$

tensa zangetsu [6.8K]2 years ago

5 0

The answer to this question is 40

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The length of the base of an isosceles triangle is x. The length of a leg is 2x-6. The perimeter of the triangle is 38. Find X

Norma-Jean [14]

Answer:

x = 10

Step-by-step explanation:

Perimeter of a triangle = the sum of the three sides.

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2 years ago

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vagabundo [1.1K]

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Troyanec [42]

The measure of each exterior angle is 60° and the polygon has 6 sides ⇒ 4th answer

Step-by-step explanation:

In a regular n-side polygon:

All sides are equal in lengths
All angles are equal in measure
The measure of each interior angle = $\frac{(n-2)*180}{n}$
The measure of each exterior angle = $\frac{360}{n}$
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∵ The measure of an interior angle of a regular polygon is 120°

∵ The sum of interior angle and exterior angle at a vertex = 180°

∴ The measure of each exterior angle = 180 - 120

∴ The measure of each exterior angle = 60°

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Learn more:

You can learn more about polygons in brainly.com/question/6281564

#LearnwithBrainly

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3 years ago

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