determine the length of a chord whose central angle is 75° in the circle with the radius of 12 inches.
Answers
Answer:
Step-by-step explanation:
other two sides joining center to the ends of chord=radius of circle=12 in
using cosine formula
[tex]cos A=\frac{b^2+c^2-a^2}{2bc} \\2bc cos~A=b^2+c^2-a^2\\\angle A=75^\circ\\b=c=r=12~in\\2*12*12~cos~75=12^2+12^2-a^2\\a^2=2*12^2-2*12^2 cos ~75\\a^2=2*12^2(1-cos 75)\\a=12\sqrt{2(1-cos~75)} \approx 14.6~inches[/tex]
Related Questions
Please please asap!!
Answers
Answer:I don't know this one
Step-by-step explanation:
how do you solve for u?
Answers
Answer:
u=9.8
Step-by-step explanation:
the minus sign on u and the minus sign on 9.8 cancel out so you get u=9.8.
Can you please help me!!
Answers
Answer:
the slope is 2x
Step-by-step explanation:
It goes up 12 units and right 6 units, so divide 12 by 6
next in the table put 6 and 12, then 12 and 24
finally, the equation is y = 2x
If f(x) = 3x - 1 and g(x) = x + 2, find (f+g)(x).
Answers
if i made 280 a month how much would i have in a year
Answers
Answer:
3360 dollars
Step-by-step explanation:
280 x 12 = 3360
Answer:
It esay answer is 3360
Step-by-step explanation:
Thereare 12 months in a year. You made 280 amonth.So multiple 280 and 12.
please help me with this please
Answers
Answer:
THE FIRST ANSWER IS 29+29+29+29
THE SECOND ANSWER IS 58
Step-by-step explanation:
How i got that answer is from it says square so i know that a square has 4 sides.
Enter an algebraic inequality for the sentence. Use x as your variable.
The quotient of three times a number and 4 is no more than 13.
Answers
Answer:
3x + 4 ≤ 13
Step-by-step explanation:
Can someone please help with this? I am so confused
substitute a
-13 ; b = -9 ; C = 2 and evaluate each expression.
17. 2c + b - a + 14
18. -(-2a) + 16 - b2
19. -3b + C - a + 4
Answers
Answer:
Basically adding in and subing the letters with the numbers given too you below
Step-by-step explanation:
2(2)+(-9-13)+14= -4
-(-2(-13)+16-(-9)2= -60
-3(-9)+(2-13)+4= 48
Plz help I will give brainliest
Answers
Answer:
Should be the second and third ones. If you multiply the values together, 3/4s will equal 3/16 and 3/32 with the other value.
Identify the volume of the composite figure. Round to the nearest tenth.
Answers
Answer:
474.5 ft ³
Step-by-step explanation:
1) Find the volume of the cube
[tex]A=l^3[/tex] where l is the side length
Plug in 9 ft as l
[tex]A=9^3\\A=729[/tex]
Therefore, the volume of the cube is 729 ft³.
2) Find the volume of the cylinder
[tex]A=\pi r^2h[/tex] where r is the radius of the base and h is the height of the cylinder
Plug in 3 ft as the radius and 9 as the height
[tex]A=\pi (3)^2(9)\\A=\pi (9)(9)\\A=81\pi \\A=254.5[/tex]
Therefore, the volume of the cylinder is approximately 254.5 ft ³.
3) Subtract the volume of the cylinder from the volume of the cube
729 ft³ - 254.5 ft ³
= 474.5 ft ³
Therefore, the volume of the figure is 474.5 ft ³.
I hope this helps!
Answer:
I think It's A
Step-by-step explanation:
At a restaurant 12 ounces of ground beef is used to make 4 hamburger patties. The number of hamburger patties
made is directly proportional to the number of ounces of ground beef used.
What is the constant of proportionality that relates the number of hamburger patties made to the number of ounces of
ground beef used?
i need it asap!
Answers
Answer:
Its 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
I think its 1/3 because you need 3 Oz of ground beef to make one pattie
I really need help. I've checked everywhere and it says cannot be factored. I will give brainliest to whoever can help me and give the correct answer. PLEASE HURRY!
Answers
Answer:
B) -5, 5, -7, 7
Step-by-step explanation:
3x² - bx + 2
factor:
(3x - 2 )(x - 1) = 3x² - (5)x + 2 so 5 does work
(3x - 1 )(x - 2) = 3x² - (7)x + 2 so 7 does work
(3x + 2 )(x + 1) = 3x² + 5x +2 = 3x² - (-5)x + 2 so -5 does work
(3x + 1 )(x + 2) = 3x² + 7x + 2 = 3x² - (-7)x + 2 so -7 does work
You estimate that there are 32 candies in a bag.
and find there are actually 29 candies. Find the percent error. Round to the
nearest tenth of a percent if necessary.
a. 0.09%
C. 9.4%
b. 0.10%
d. 10.3%
Answers
Answer:
D. 10.3%
Step-by-step explanation:
Find the percent error using the formula:
percent error = | (observed - expected) / expected | x 100
32 is the observed value, and 29 is the expected value
Plug in these values to solve for the percent error:
percent error = | (observed - expected) / expected | x 100
percent error = | (32 - 29) / 29 | x 100
percent error = 10.3%
So, the correct answer is D. 10.3%
At a sale, coats were sold for $17 each. If the coats originally cost $20 each, what percentage of its original price was a coat sold for?
Answers
$20 is 100%
$10 is 50%
$1 is 5%
Use that to work them out and voila
Identify the slope of the graph below...
is the slope
positive
negative
undefined or
just zero
Answers
Answer:
Undefined
Step-by-step explanation:
Vertical lines are undefined.
Help me please thanks so much
Answers
6/3
=2/1
which is basically 2, the first option
Answer:
2
Step-by-step explanation:
x/y equals to 6/3. Simplify it- 6(numerator) can go into 3(denominator) twice, so therefore it is 2.
Or you can divided 6(numerator) by 3(denominator), and get 2.
Hope this helped, guys!
How can translations help you
sketch the graph of f(x) = x2 + 8x + 16?
Answers
Answer:
THE REAL ANSWER IS IN THE SCREEN SHOT HIS IS NO VIRUS LINK
Step-by-step explanation:
pls mark me brainliest
what is 49cm^2 in mm^2
Answers
Answer:
4900mm^2 or 24010000mm
Step-by-step explanation:
pls help i will give brainliest
Answers
What is 1sq ft x11ft
Answers
Answer:
The answer will be 311.485313 liters
Step-by-step explanation:
Because I searched it up
how many songs can you play on sound cloud before a ad comes on
Answers
What % of $30 is $21?
Answers
Answer:
70
Step-by-step explanation:
Answer:
x/100 x 30 = 21 (solve for x) x =70
I wish I could explain more but if your just lazy to do this i wont explain but if you honestly dont know I will explain, so solve for x you must multiply by a 100 on both sides and on the right side you multiply it to the fraction so x/100 x 100 = x (variable by itself means 1) then 21 x 100 = 21,000 therefore you are left with 30x since you are multiplying x and 30 together then you will divide by 30 on both sides to get x = 70
I NEED THIS ASAP I will give 40 POINTS AND WILL MARK BRAINLIEST!!!
Answers
Answer:
1st attachment x=25,
2nd attachment x=107, x=-26
Step-by-step explanation:
Step-by-step explanation:
1. It's x = 25
Hope It Helps U
Is z = 5 a solution to the inequality below?
z > 12
yes
no
Answers
Answer:no
Step-by-step explanation:z should be more than 12 like 13, 16.67,...
Answer:
No
Step-by-step explanation:
Z=5
5 >12 5 is not greater than 12.
A gym charges an annual membership fee of $120 plus $45 per month to use the pool facilities. What is the cost of one year of membership at the gym that included use of the pool?
Answers
Between which two numbers is √8 located on a number line?
Answers
Answer:
√8 is between 2 and 3.
Step-by-step explanation:
♡ im sorry if its wrong ♡
Awnswer this Pls! 70 points
Answers
Answer:
the answer is true
Step-by-step explanation:
Answer:
false i hope this helps and please mark as brainly
Someone plz help me I will give brainliest
Answers
Largest number - smallest number so
38-3= 35
Please I need help I’m sorry for bothering
Answers
Answer:
A
Step-by-step explanation:
A
Explanation:
Since you are adding the numbers in the parenthesis, it doesn’t matter which order they go in, the answer won’t change.
Tu bicicleta necesita ser reparada. Un mecánico cobra $ 22 por cada hora de trabajo y las piezas nuevas cuestan $ 23. El costo total para reparar la bicicleta es de $ 111. ¿Cuántas horas le tomó al mecánico arreglar la bicicleta?
Answers
Answer:
the number of hours that would be taken is 4
Step-by-step explanation:
The computation of the number of hours would be taken is shown below:
Let us assume the number of hours be x
Now according to the question
The equation is
$22x + $23 = $111
$22x = $111 - $23
x = 4 hours
Hence, the number of hours that would be taken is 4