Answers
Step-by-step explanation:
a) m∠AOB = 360°/8 = 45°
Internal angle is 360°, divided by 8 sides of octagon
b) m∠ABC = 2m∠ABO
m∠ABO = m∠BAO = 1/2(180° - 45) = 1.2(135°)
m∠ABC = 2*1/2(135°) = 135°
Answer:
a) 45
b)135
Step-by-step explanation:
[tex]In\ order\ to\ find\ the\ sum\ of\ all\ the\ interior\ angles\ of\ a\ polygon\ with\ sides\ n,\\S=180(n-2)\\Here,\\As\ the\ figure\ is\ a\ regular\ octagon\ ,\\The\ sum\ of\ all\ of\ its\ angles\ = 180(8-2)\\=180*6=1080\\Hence,\\Given\ that\ it\ is\ regular\ or\ that\ all\ of\ its\ angles\ are\ equal\ in\ measure.\\Hence,\\b) Angle\ ABC=1080/8\\=135\\As\ it\ is\ regular\ , the\ diagonals\ passing\ through\ the\ center\ bisects\ the\ respective\ angles.[/tex]Hence,
[tex]Angle OAB=135/2 = 67.5\\Angle ABO=135/2=67.5\\Through\ the\ angle\ sum\ property\ of\ a\ triangle\\Angle OAB+AngleABO+Angle AOB=180\\67.5+67.5+AngleAOB=180\\135+AngleAOB=180\\Angle AOB=180-135\\=45[/tex]
Related Questions
Help meeeee pls (first get brainliest)
Answers
Answer:
Add both of the like terms so
5a+7c=78.50
Step-by-step explanation:
The senior class is planning a trip that will cost $55 per student. If $4180 has been collected  from the seniors for the trip, how many have paid for the trip?
Answers
2. x= 76
76 seniors have paid for the trip.
A $52 video game is advertised for 20% off.If sales tax is 6% how much will the video game cost
Answers
Answer:
S44.10
Step-by-step explanation:
20% of 52 is 41.6
6% of 41.6 is 2.49600 US$ which rounds to 2.50
2.50+41.6=44.1
$44.10
I need help ASAP!!!!
Answers
Answer: 3/8
ưhen x = 3
=> [tex]y=3(\frac{1}{2})^{3}=3.\frac{1}{8}=\frac{3}{8}[/tex]
Step-by-step explanation:
i need help with my homework
Answers
what is the answer to this equation
h=-16t^{2}+12t+200
Answers
Answer:
hey are you good at ela
Step-by-step explanation:
9. y + 7 = 2(x + 5)
in standard form
Answers
Answer:
y=2x+3
Step-by-step explanation:
1. y+7=2(x+5) (rewrite the problem)
2. y+7=2x+10 (distribute the 2)
3. y=2x+3 (subtract 7 from both sides; 10-7=3)
(0, -15), (-12, 18)
Can some one find the slope
Answers
Answer:
use this formula the answer is down below.
[tex]\frac{ysub2-ysub1}{xsub2-xsub1}[/tex]
Step-by-step explanation:
this is y. -15-18= -33
this is x. 0--12 (so in this case you would add 12)
the slope is -33/12
1) Last year, Springfield Middle School had 640 students. This year, it has 480
students. What is the percent of decrease? *
Answers
The percent of decrease is -25%.
Given that,
Last year, Springfield Middle School had 640 students. This year, it has 480 students. Calculation:[tex]= (480 - 640) \div 640\\\\= -160 \div 640[/tex]
= -25%
Find out more information about percentage here:
https://brainly.com/question/26080842?referrer=searchResults
What is f(4) for the function f(x) = 6x +3?
f(4)=0
Answers
= 24+3=27
F(4)=27.
The value of function f(4) is 27.
It is required to find the value of function f(4).
What is function?
A function is defined as a relation between a set of inputs having one output each. function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and codomain or range. A function is generally denoted by f(x) where x is the input.
Given that:
The function is
f(x) = 6x +3
Now put the value x=4 in the given function, we get
f(4)=6(4) +3
= 24+3
=27
f(4)=27.
Hence, the value of function f(4) is 27.
Learn more about function here:
https://brainly.com/question/19013514
#SPJ2
which equation represents a line which is perpendicular to the line y=4/3x - 7?
a. 3x + 4y = 8
b.4x + 3y = -6
c. 4x - 3y = 24
d. 4y - 3x = 12
Answers
WILL GIVE BRAINLIST!
Answers
Answer:
x=60
Step-by-step explanation:
Answer: The equation 60 + x= 3x -70 could be set up to solve for x.
Step-by-step explanation:
The two remote interior angles sums will equal to the exterior angle .
Meaning that angle 60 plus angle x has to equal to angle 3x -70.
60 + x= 3x -70 Now solve for x by adding 70 to both sides
+70 +70
130 + x = 3x Now subtract x from both sides
-x -x
130 = 2x Divide both sides by
x = 65
In a bag full of small marbles, 1/4 of the marbles are green 1/8 of the marbles are blue and 1/12 of the marbles are
yellow The remaining 26 marbles are white How many marbles are blue?
blue marbles
Answers
Step-by-step explanation:
white=26
1/4+1/8+1/12=6/24+3/24+2/24=11/24=(green,blue and yellow marbles)
24-11=13/24=white
26/13=2=1/24
blue=3/24
2.3=6
answer 6
Simplfy 7xy + 8x + 5xy + 6x
Answers
Answer:
2xy+2x
Step-by-step explanation:
7xy-5xy = 2xy
8x-6x= 2x
combine:
2xy+2x
Answer:
12xy+14x
Step-by-step explanation:
Ms. W has 400 followers on Twitter and is gaining 75 followers each day. Mrs. Hill has 1,000 followers on Twitter, but is losing 25 followers a day. How many days will it take them to have the same number of followers?
Answers
Answer:
It takes 6 days.
Step-by-step explanation:
First, you have to form expressions for both of them in terms of x. Let x be the number of days :
Ms. W = 400 + 75x
Mrs. Hill = 1000 - 25x
Next, you have to compare it as we want to find out how many days in takes for them to have the same number of followers :
400 + 75x = 1000 - 25x
75x + 25x = 1000 - 400
100x = 600
x = 6
Hi guys can you please help me with this problem please ill mark brainiest
Answers
The answer is y= 23/4
if 324 is multiplide wit 11,what is the product?
Answers
Answer:
3,564
Step-by-step explanation:
324
11
×___. if you multiply this way it might help
Slope of (-8,2) and (-8,-6)
Answers
Answer:
-8
Step-by-step explanation:
Plz help will make brainiest.
Answers
The first two are correct for sure, the last one I’m pretty sure is also correct.
The gas tank in sampson car has a capacity of 19.1 gallons . on a Tripp to see his cousin , Sampson begins with 12.8 gallons if gas in the tank he stops after driving for 2 hours and fills the tank to capacity with 14.4 gallons. When sampson arrives at his cousins house he has 3.7 gallons of gas left. How much gas , did sampson use on his trip
Answers
Answer:
23.5 gallons
Step-by-step explanation:
The gas tank in Daniel's car has a capacity of 19.1 gallons.
On a trip to see his best friend Daniel begins with 12.8 gallons of gas in the tank.
He stops after driving for 2 hours and fills the tank to capacity with 14.4 gallons.
When Daniel arrives at his friend's house, he has 3.7 gallons of gas left.
Total amount of gas filled was (12.8 + 14.4) = 27.2 gallons.
The amount of gas remaining after the trip was 3.7 gallons
The amount of gas, in gallons, used by Daniel on his trip was 27.2 - 3.7 = 23.5 gallons
Answer:
fat nuts
Step-by-step explanation:
i forgor
-6 - 5 + 3 =
(worth 10 points)
Answers
Answer:
-8
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
Mark me as brainliest
Isaiah is mowing lawns for a summer job for every mountain Charlie charges an initial fee of $10 plus $6 dollars for each additional hour
1. write an equation in slope intercept form
2. how much money does he make after working one job for four hours
Answers
Answer:
y = 6x + 10
Isaiah makes $34.00 after working for 4 hours.
Step-by-step explanation:
Slope intercept form is y=mx+b
In this situation the equation would look like so, x = amount of hours:
y = 6x + 10
To solve for how much Isaiah earns after 4 hours plug in 4 instead of x.
y = 6(4) + 10
y = 24 + 10
y = 34
Isaiah makes $34.00 after working for 4 hours.
Hope that helps and have a great day!
How many eighth notes do you need to total the amount of a half note
Answers
Answer:
Four eighth notes
Four eighth notes equal one half note in duration and eight eighth notes equal one whole note.
Step-by-step explanation:
Hope this helps, If it did, then I would really appreciate it if you gave me Brainliest, I only need one more to rank up and it has taken forever to get to where I am currently. Thanks.
What is the square root of 12 divided by 2 plus 16?
Answers
Answer:
17.73205081
Step-by-step explanation:
Didn't use a calculator :) Please mark me as brainliest. Thanks!
Answer:
[tex]\frac{2\sqrt{3} + 32}{2} \\[/tex]
Step-by-step explanation:
[tex]\frac{\sqrt{12} }{2} + 16[/tex]
= [tex]\frac{\sqrt{12} }{2} + \frac{32}{2}[/tex]
= [tex]\frac{\sqrt{12} + 32}{2}[/tex]
= [tex]\frac{2\sqrt{3} + 32}{2} \\[/tex]
* i'm not sure if it can be further broken down *
Party punch cost $2.50 per half gallon. How much would 6 gallons cost!!!!! HELP ASAP DUE AT MIDNIGHT
Answers
Answer:
2.50 times 2 is 5. $5 is now 1 gallon. 5 time 6 equal $30. $30 dollar is your answer. Please mark brainly!!
Step-by-step explanation:
Answer:
ehh its D.$30.00
Step-by-step explanation:
sry im not trying to be rude or anything... but do you know your times table >,<
Select all the correct graphs.
Choose the graphs that indicate equations with no solution.
Answers
Answer:
The first and last graph.
General Formulas and Concepts:
Algebra I
Solving systems of equations graphicallyStep-by-step explanation:
In order for a systems of equations to have a solution set, the 2 graphs must intersect at at least 1 point. Here, we see that graphs 1 and 5 do not intersect each other at all.
Therefore, the rest of the graphs have solutions and #1 and #5 do no have any solutions.
Which of the following is not a function
B is not right
Answers
Answer:
The first one
Step-by-step explanation:
They have 2 outputs for the same input
A function cannot have the more than one of the same x-values (x= 2 y=4, x=2 y=5), but you can have more than one of the same y-value as long as it’s a diff x-value (x=2 y=5, x=3 y=5)
At the beginning of the business day a bank vault had $575,900. By the end of the day, $ (3.5 x 10^3) have been added to the vault how much money did the banks fault told at the end of the business day write your answer in standard form.
Answers
9514 1404 393
Answer:
$579,400
Step-by-step explanation:
The total will be ...
$575,900 +3.5×10³ = $575,900 +3,500 = $579,400
At the end of the day, the vault held $579,400.
14) zeroes of the polynomial x^2+5x+6 are...
Both positive
Both negative
One is positive and other is negative
None
Answers
Answer:
both negative
Step-by-step explanation:
Descartes rule of signs tells us how many positive and negative real roots a polynomial has.
Given
f(x) = x² + 5x + 6 , with signs
+, +, + ← no change of signs, thus no positive zeros
f(- x) = (- x)² + 5(- x) + 6 = x² - 5x + 6 , with signs
+, -, + ← with 2 changes of signs. thus 2 negative zeros
Answer:
B) Both Negative
Step-by-step explanation:
[tex](x^2+5x+6)\\=(x^2+2x+3x+6)\\=x(x+2) + 3(x+2)\\=(x+3)(x+2)\\Hence,\ as\ their\ factors\ are\ (x+3)\ and\ (x+2)\ their\ zeroes\ are\ (-3)\ and\ (-2)\ respectively..\\As\ they\ both\ are\ negative..\ the\ answer\ is\ b)\\\[/tex]
help I want to get sleep
Answers
Answer:
I got -45.1 but idek if its right or not
Answer:
-45.1
Step-by-step explanation:
-6*7.1 + 2.5
-42.6 + 2.5
= -45.1