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2 years ago

What is the measure of one interior angle of a regular polygon that has 40 sides?

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

8 0

Hope this is correct and hope it helps x

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True/False: Sound waves are produced by

Evgesh-ka [11]

True, sound waves are created when vibrated and they travel through transverse waves

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2 years ago

How do you write 23.5% as a decimal?

vesna_86 [32]

Answer:0.235

Step-by-step explanation:

Take the decimal point and move it to the left twice and you get your answer

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2 years ago

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Solve 2x^3+7x^2-2x-1=o

Mashcka [7]

Answer:

$x=\sqrt{3}-2\\x=-\sqrt{3}-2\\x=\frac{1}{2}$

Step-by-step explanation:

This is a hard one

We have to use the rational root theorem

$2x^3+7x^2-2x-1$ = 0

We have to find all the factors of a and d and put them in a fraction

$a=2\\d=-1\\\frac{1}{1,2}$

We then plug them into the equation to see if any of them work

The equation isn't true when plugging 1, but is true when plugging in 1/2

factored form of 1/2 is (2x-1)

Then we divide the original equation by (2x-1) (you can use synthetic division or long division, it would be hard to type out the process for that) to get $x^2+4x+1$

So now the equation is $(2x-1)(x^2+4x+1)$

Solve the second half of this equation using the quadratic formula to get

$\sqrt{3}-2$ and $-\sqrt{3}-2$

We already know the solution for the first half of the equation (1/2)

So the final answers are:

$x=\sqrt{3}-2, -\sqrt{3}-2, \frac{1}{2}$

8 0

2 years ago

Hi y’all please help me !

mestny [16]

Answer:

Step-by-step explanation:

They are vertical angles, vertical angles always have the same measurement. example below

this angle is 56---> 56 ><m <---- this angle is always 56 since they are vertical

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2 years ago

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Find the values of the missing angles<br><br> HELP PLEASE DO ANY! I’ll give you brilliance

yan [13]

Answer:

1) x = 42 ; y = 42

2) x = 72 ; y = 48 ; z = 60

Step-by-step explanation:

x + 42 + 96 = 180

x + 138 = 180

x = 42

y + 42 + 96 = 180

y + 138 = 180

y = 42

x + 108 = 180

x = 72

y + 132 = 180

y = 48

z + x + y = 180

z + 72 + 48 = 180

z + 120 = 180

z = 60

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2 years ago