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3 years ago

How many sides does a regular polygon have if each interior angle has a measure of 108° ?

Mathematics

1 answer:

Katarina [22]3 years ago

6 0

Answer:

Each interior angle of the polygon is 108 degrees, so each exterior angle of the polygon is 180-108 = 72 degrees. So the number of sides is 360/72 = 5.

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What is the circumference of the circle in the example? 2π 4π 6π

ale4655 [162]

Answer:vssbiubpu buivbub [u bu[b [uib

Step-by-step explanation:

scewsucpsivgeduaigxuygu1yuwgyugvuygquyy3gvdv

3 0

4 years ago

Read 2 more answers

Please guys helppp ;( F(x)=mx+ b, f(-2)=3 and f(4)=1 , what is the value of m and b

marshall27 [118]

Answer:

I think the answer is m= -1/3 b=7/3

Explanation:

so first, you need to make equations using the info that the question gave.

f(-2)= m(-2)+b f(4)= m(4)+b

= -2m+b =4m+b

f(-2)= 3 f(4)= 1

-2m+b= 3 4m+b=1 -(2)

b= 3+2m -(1)

substitute (1) into (2) : 4m+(3+2m)=1

4m+2m+3=1

6m=1-3

6m= -2

m= -2/6

m= -1/3

Substitute m= -1/3 into (2)

4(-1/3) + b=1

-4/3 +b =1

b= 1+ 4/3

b= 7/3

Therefore, m= -1/3 b=7/3

and that's how you do it

4 0

3 years ago

Solve for z, z−a= z/b , if b≠1

romanna [79]

Answer:

$z=\frac{ba}{b-1}$

Step-by-step explanation:

There are no numbers, only variables. So solving for "z" would mean we get an expression for z.

The equation given is:

$z-a=\frac{z}{b}$

We will cross multiply and use distributive property (shown below) to do our algebra and come up with an expression for z, in terms of a and b.

<u>Distributive property:</u> a(b - c) = ab - ac

So, lets solve:

$z-a=\frac{z}{b}\\b(z-a)=z\\bz-ba=z\\bz-z=ba\\z(b-1)=ba\\z=\frac{ba}{b-1}$

This is the expression for z.

3 0

4 years ago

Iodine-123 is a radioactive substance used in medicine. It has a half-life of 13 hours. A nurse received a solution that initial

zhuklara [117]

Ok

A=P(1/2)^(t/h)
A=amount final
P=initial amount
t=time elapsed
h=time of half life

so

given h=13
and initial =48g
and final is 12g

12=48(1/2)^(t/13)
divide both sides by 48
1/4=(1/2)^(t/13)
what a coincidence
(1/2)^2=(1/2)^(t/13)
so
2=t/13
26=t

26 hours have passed

5 0

3 years ago

Negative four over five s equals 2

Olegator [25]

Hey there!

Negative 4 over 5 s: $-\frac{4}{5}s$

equals 2: $= 2$

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First: Multiply both of your sides by $\frac{5}{-4}$

Like: $\frac{5}{-4} ( \frac{-4}{5})s \\ \\ \\ = \frac{5}{-4} (2)$

Cancel out $\frac{5}{-4} ( \frac{-4}{5} s)$

Keep: $\frac{5}{-4} (2)$ because this will give you the outcome!

$Answer: s = \frac{-5}{2}$

Good luck on your assignment and enjoy day!

~ $LoveYourselfFirst:)$

8 0

4 years ago