2 years ago

In the regular decagon shown, what is the measure of angle 1?

Mathematics

2 answers:

slava [35]2 years ago

7 0

Answer:

the angle will be 144

Step-by-step explanation:

All sides are the same length (congruent) and all interior angles are the same size (congruent).

To find the measure of the angles, you need to divide 1440 by 10 which = 144

If you are solving for the central angle then divide 360 by 10 which = 36

Leya [2.2K]2 years ago

3 0

Answer:

Step-by-step explanation:

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Jerome works as a waiter. He earns $80 each weekend plus 15% in tips based on the cost of the meals served.

Softa [21]

Answer:

He gets paid $80 each weekend, and a 15% with tips.

you would need to figure out the tips, by taking the $725 and timesing it by .15 for the percent.

which would be 108.75

you would now take 108.75 and add 80 to get what he made that weekend.

108.75+80 = 188.75 dollars

Step-by-step explanation:

5 0

2 years ago

What are the zeros of the quadratic function f(x) = 6x2 + 12x – 7?

zalisa [80]

we have

$f(x) = 6x^{2} + 12x -7$

To find the zeros equate the function to zero

$6x^{2} + 12x -7=0$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$7= 6x^{2} + 12x$

Factor the leading coefficient

$7= 6(x^{2} + 2x)$

Complete the square. Remember to balance the equation by adding the same constants to each side

$7+6= 6(x^{2} + 2x+1)$

$13= 6(x^{2} + 2x+1)$

Rewrite as perfect squares

$13= 6(x+1)^{2}$

$(13/6)=(x+1)^{2}$

square root both sides

$x+1=(+/-)\sqrt{\frac{13}{6}}$

$x=-1(+/-)\sqrt{\frac{13}{6}}$

$x1=-1+\sqrt{\frac{13}{6}}$

$x2=-1-\sqrt{\frac{13}{6}}$

therefore

the answer is

The zeros of the quadratic function are

$x=-1+\sqrt{\frac{13}{6}}$ and $x=-1-\sqrt{\frac{13}{6}}$

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Is 5/21 rational or irrational number ?

ZanzabumX [31]

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rational

Step-by-step explanation:

irrational numbers can not be expressed as a fraction

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