Determine the angle at the centre of a circle with radius 12.0 cm for an arc length of of 21.0 cm.
A. 4/7 radians
B. 7/π radians
C. 7/4 radians
D. 7 π/4 radians

Answer:

I can 't and see the question, Pls send it again.

Answer:

72

Step-by-step explanation:

First, we will multiply the number of posts (7) by the posts' width (6) to get 42.

Since there is a chain between each post, there are 6 chains.

Multiplying the number of chains (6) by the chains' length (5), we get 30.

The question asks us to find the total length of the fence, so we add 42 and 30 and get 72.

Hope this helps!

In the given figure angle CBF and angle CEF are supplementary angles. So Option C is correct.

What is an angle ?

An angle is a mathematical term, which we can define, when two straight lines or rays meet at a common endpoint. The common point is called the vertex of an angle. The word angle comes from a Latin word named ‘angulus,’.

Given that,

A figure which contains one trapezium BCEF

And in this portion angle CBF and angle BCE are  opposite angles

and opposite angles are supplementary angles,

Hence, the pairs of angles are ∠CBF & ∠CEF

Answer: BAF and AFB, CDE and DEC, CEF and AFB

Step-by-step explanation:

Answer:

THEY ARE ALL TRIANGLES, all have an measure to 180 degree, all have angles ;)

Step-by-step explanation:

SCALENE ALL DIFFER IN SIZE

ISOCLES 2 ARE SAME

EQUALATREAL EQUAL

Answer:

Step-by-step explanation:

3.1313109

Answer: the answer should equal 3.131

Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.

Please got brainliest

Answer:

i dont understand the question?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Based on the experiment, 9 times he pulled a purple marble out of the 36 trials.

That means he has a 1/4 probability of pulling a purple marble

This means that the purple marble ideally makes up one-quarter of the total marble in the bag.

Choice G and F satisfy the condition as stated above.

Hope that helps!

Answer:

1/ 27

Step-by-step explanation:

\( = 81^{ \frac{-3}{4} } \)

\( = (\frac{1}{81}) ^{ \frac{3}{4} } \)

\( = (\frac{1}{3}) ^3 \)

\( = \frac{1}{27} \)

Answer:40

Step-by-step explanation:

Answer:

63 \(m^{2}\)

Step-by-step explanation:

If you cut up the shape in to vertical shapes, the rectangle on the right and left have the equation 8 times 3 is 24. So we add 24 and 24 to get 48. The center is a little more difficult. the length is 3 and the height is 8 minus three, which come out to 5. 3 times 5 is 15. 48 plus 15 is 63, therefore your answer is 63.

Answer:26

Step-by-step explanation:Since angles 1 and 2 are supplementary, it follows that there sum is 180°.

On this note;

Sum of 1 and 2 is;

180 = 124 + (2x + 4)°

(2x + 4)° = 180 -124

2x = 56 -4

2x = 52

x = 26°.

Answer:

-200+12 and one-third(4.5)

Step-by-step explanation:

Firstly, it can't be one of the first 2 answers because we go down by 200ft. Then, we know it can't be the last option because we gain 12 and 1/3 ft per minute. Therefore, it must be the third option.

Answer: The ratio is 18:3

Step-by-step explanation:

Answer:  6 to 1

Step-by-step explanation:

A ratio refers to a fraction. In this case the question asks how many players to coaches there are.

The word "to" means that is where the fraction bar goes.

Players/Coaches

There are 18 players and 3 coaches.

18/3

18 can be divided by 3, 6 times so the fraction can be simplified to

6/1 meaning there are 6 players for every coach.

Answer. Number one i think.

Answer:

The answer is 1, 2 divided by one fifth.

Step-by-step explanation:

1/5 is 2/10 simplified and it's meeting at 2 therefore, the first option is correct.

Answer:

To rewrite 1 as 10 to power, you'd write 10^0 (ten to the power of zero).

Any non-zero number with the power of zero equals one. You might be wondering why, so to prove this theorem...

2^1

-----

2^1

Since the numbers are the same on the numerator and denominator, we can agree that the fraction above is equal to 1, yes? It is also equal to...

2^1-1

...because of the quotient rule. And what does 1-1 equal? 0. So you'd get

2^0

This is known as the "zero-exponent rule!"

Hope this helped.

Step-by-step explanation:

Hi there!

~

\(2 \frac{1}{4} \div ( \frac{3}{8} \div \frac{1}{2} )\)

\(= 3\)

Hope this helped you!

Answer:

1 11/16

Step-by-step explanation:

Answer:

its 6

Step-by-step explanation:

Answer:

m=54

Step-by-step explanation:

you multiply 18 and 3

Answer:

Pyramid: In fact, the volume of any pyramid is one-third the area of the base times the height. Finding the surface area of a pyramid is done by first finding the area of the base and the area of each lateral face. … Lastly, the surface area of a pyramid is the sum of the area of the base and the lateral area!

Cone: a volume of 4 3 π r 3 \frac{4}{3} \pi r^3 34πr3 and a surface area of 4 π r 2 4 \pi r^2 4πr2.

Sphere: A cone is essentially a pyramid with a circular base. The volume of a pyramid is given by Vpyramid=Abase⋅h3. Since the area of the base of a cone is πr2, the formula for the volume of a cone is Vcone=πr2h3.

Answer:

Repeating

Repeating

Non-Repeating

repeating

Step-by-step explanation:

Answer: B. Mantle

Step-by-step explanation:

I just couldn't pass up answering this question. I think the earth is very interesting.

The Earth's mantle is a thick layer of hot, flowing rock that lies beneath the crust. Convection currents within the mantle are responsible for the movement of the Earth's tectonic plates, which make up the continents and the ocean floor. As the mantle convects, it drags the plates along with it, causing them to move and interact with each other at their boundaries. This movement is responsible for many geological phenomena, including earthquakes, volcanoes, and the formation of mountain ranges.

Answer:

Hi!,

The Answer should be 4

Step-by-step explanation:

1. First divide 2 by 3

2. Calculate the power 5²

3. =10/3

4. = 2/3 + 10/3

5. = 4

(TO add fractions, find the LCD and then combine)

LCD--"Least Common Denominator"

ANSWER: 4

Answer: B

Step-by-step explanation: The combined height is 36'.

3 times 4.25= 12.75.

2 times 4.50 = 9.

and 3 times 4.75 = 14.25.

12.75+9=21.75.

21.75+14.25=36

So, your answer is B.

Answer: A

I think I might of messed up but I tried...

Answer:

I would say getting all the them right.

Step-by-step explanation:

There isn't really a way to get more points unless you're getting the questions all correct- So I would say just grind those points!

Answer:

just be smart

Step-by-step explanation:

Answer:

1.5 or 6/4

Step-by-step explanation:

y=1.5x+2

or

y=6/4x+2

Answer: -75

Step-by-step explanation:

Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

Two sets of data, set X and set Y are given

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

Therefore, both the data sets has same range and mean.

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.  

To learn more about S.D and variance,

https://brainly.com/question/15858152

https://brainly.com/question/12402189

Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

We know

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

also

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.