How do you calculate the area of a circle​

Answers

Answer 1

Just follow this formula.

Area of a Circle= [tex]\pi R^{2}[/tex]

That means PI Radius Squared

Hope this Helps.

-Northstar

Answer 2

Its best to ask your teacher bc like some people wont answer bc thats hard


Related Questions


Enter equations one at a time in order to send a line
through the coins to "capture" them.

Answers

Answer:

y = x + 3

y = 3x + 1

Step-by-step explanation:

This does it in two equations.

y = x + 3 and  y = 3x + 1 equation will send 2 different lines through the coins to capture them

using the slope intercept equation,

y = mx + b

m = slope

b = y-intercept

let's pick 2 coordinate from the graph,

(-2, 1)(-1, 2)

m = 2 - 1 / -1 - (-2)  = 1 / 1 = 1

1 =  -2 + b

b = 3

Therefore,

y = x + 3

let check for another equation that will work for another line. Let's use the coordinates (-1, -2)(0, 1) to find slope.

Therefore,

m = 1 - (-2) / 0 - (-1) = 3 / 1 = 3

y = 3x + b

1 = 3(0) + b

b = 1

y = 3x + 1

Check here for similar problems: https://brainly.com/question/22490518?referrer=searchResults

A carpenter cut a 6 1/2 -ft board into
1 1/4-ft sections. What is the number of sections he cut?

Answers

Answer:

5 pieces

Step-by-step explanation:

alpha cube minus beta cube​

Answers

Answer:

a³-b³=(a-b)³+3ab(a-b)

          or

(a-b)(a²+b²+ab

Step-by-step explanation:

:/

Question 3(Multiple Choice Worth 1 points)
(05.04 MC)

The data to represent average test scores for a class of 16 students includes an outlier value of 78. If the outlier is included, then the mean is 84. Which statement is always true about the new data when the outlier is removed?

The mean would decrease.
The mean would increase.
The median would decrease.
The median would increase.

Answers

Answer:

The mean would increase

Step-by-step explanation:

The mean would increase

78 is lower than the mean so if you take out a value that's lower than the mean it would obviously increase

Melanie has a bag that contains orange chews, cherry chews, and peach chews. She performs an experiment. Melanie randomly removes a chew from the bag, records the result, and returns the chew to the bag. Melanie performs the experiment 61 times. The results are shown below: A orange chew was selected 38 times. A cherry chew was selected 5 times. A peach chew was selected 18 times. Based on these results, express the probability that the next chew Melanie removes from the bag will be peach chew as a decimal to the nearest hundredth.

Answers

Answer:

0.30

Step-by-step explanation:

Given that:

Total number of trials = 61

Number of orange chews = 38

Number of cherry chews = 5

Number of peach chews = 18

Probability that next chew removed will be a peach chew ;

This is an experimental probability problem ;

Using the relation :

Experimental probability of A;

Number of successes (A) / total number of trials

Hence, Probability that next chew removed will be a peach chew ;

Experimental probability of peach chew :

Number of trails = 61 ; number of successes (peach chew) = 18

P(peach chew) = 18 / 61

P( peach chew) = 0.2950819

= 0.30 ( nearest hundredth)

A rectangle measures 6 inches by 15 inches. If each dimension of the rectangle is dilated by a scale factor of 1/3 to create a new rectangle

Answers

I think it is A. I could be wrong


Jared has 12 more comic books than Zoe. If they have 28 comic books
altogether, find the number of comic books Jared has.
Your answer

Answers

Answer:

20 comic books

Step-by-step explanation:

Let us first set up a variable, x, for the number of books that Zoe has. If Jared has 12 more comics than Zoe, he would have x+12 books.

Given that Zoe and Jared have a total of 28 comic books, let us write an equation and solve for x:

[tex]x+x+12=28\\2x+12=28[/tex]

Now that we have a simplified version of the equation, let us solve for x by isolating the variable on the left side:

[tex]2x=28-12\\2x=16\\x=8[/tex]

We now know that x=8, and also that Jared has x+12 books. To find the number of comic books Jared has, let us add 12 to x:

[tex]x+12=\\8+12=\\20\\[/tex]

Therefore, Jared has 20 comic books.

I hope this helps! Please let me know if you have any further questions :)

answer these questions if ur smart

Answers

So find the diameter which is the radius times 2
So 3x2= 6
6x 3.14(Pi)
=18.84 which a full circle and now divide by two
9.42 is the area of semi circle

Answer:ayyyy more free points

Step-by-step explanation: so i can ask questions

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Marc is planning a holiday for 4 people for 7 days.
Here are the costs for the holiday for each person.
Travel
£250
Hotel
£50 for each day
Spending money £350
Work out the total cost of the holiday for 4 people for 7 days.

Answers

Answer:

£3,800

Step-by-step explanation:

The computation of the total cost is shown below;

Each person cost is

Travel cost £250 (assume for 7 days)

Hotel cost £50 × 7 days = £350

Spending money £350 (assume for 7 days)

Cost for each person is £950

Since there are four persons, so the total cost would be

= £950 × 4 peoples

= £3,800

Translate the sentence into an equation The sum of 5 times a number and 7 is 3
Use the variable b for the unknown number


HELPPPPPP

Answers

Answer:

Equation: 5b + 7 = 3

Step-by-step explanation:

Unknown number = b

5 times of number = 5b

Sum of 5b and 7 = 5b + 7

Equation;

5b + 7 = 3

what is the answer for y=__x+__

Answers

Answer:

y=1/-4x+4

Step-by-step explanation:

hey

Step-by-step explanation:

Slope (x) is rise/run. From one intersecting point to the next, we find it is moving 4 y down and 1 x over. Using this we conclude the slope is -4/1x (or -4x)

The second number in the system is b, or y-intercept. The line intercepts at 4y. If we combine these together, the outcome is y = -4x + 4

1/2+ p = -3 solve for p

Answers

Answer:

-3.5

Step-by-step explanation:

1/2+p= -3

p= -3-1/2

p= -3.5

hope it helped? (3

PLEASE, PLEASE HELP D:
write the linear equation given :

1. slope = 1/4; y-intercept =7

2. slope = -3; y-intercept = 2/3

3. slope = 2/3; y-intercept = 2/3

4. slope = -2; y-intercept = -1/2

5. slope = -3/4; y-intercept = -3

Answers

Answer:

1. y =1/4x + 7

2.y =-3x + 2/3

3. y =2/3x + 2/3

4.y =-2x - 1/2

5.y =-3/4x -3

Step-by-step explanation:

By using the slope- intercept form of the equation, y=mx + b, where m=slope and b=y-intercept, you can substitute the values of slope and the y-intercepts into the formula y=mx + b

Find the area of the parallelogram.

Answers

Answer:

12

Step-by-step explanation:

12 is the area

Since,

6×2=12

3.
Susan has a balance of $110 in her school lunch account, and she spends $6 per day for
lunch. Her sister Evelyn has $83 in her lunch account, and she spends $4 per day for lunch. In
how many days will Susan's lunch account balance be less than Evelyn's?

Answers

Answer:

i may be entirely wrong but evelyn has more days

susan=18

evelyn=20.75 or 21 if rounded

A fish is 12 Meters below the surface of the ocean. what is it's evelation ​

Answers

A fish is 12 Meters below the surface of the ocean. What is the elevation it is -12

estimate 70 divided 30

Answers

Answer:

1.4 estimate: 1

Step-by-step explanation:

Line segment AB has endpoints A(2, -3) and B(-4, 6). What are the coordinates of the midpoint of AB?

Answers

(-1,1.5) because you add both ys and both xs then divide by two to find the middle

Find the area of the shape below. All measurements are in miles.
6
8
1
15.23
1
1

Answers

731.04!! You multiply all together!! Mark me brainliest ?

*WILL MARK BRAINLIEST* 15 POINTS
Match each word to its correct definition:

Answers

Answer:

2  

3

1

4

Step-by-step explanation:

Angles that add up to 90 are Complementary angles.

Two angles that have a common vertex and a common side but do not overlap are Adjacent angles.

Angles that are opposite each other and have the same measurment are vertical angles.

Angles that add up to 180 are Supplementary angles.

Hope this helps!! :D

Supplementary angles - angles that add up to 180

Complementary angles- angles add up to 90

Adjacent -two angles that have a common vertex

Vertical- angles that are opposite of each other

Because of prevailing winds, a tree grew so that it was leaning 6º from the vertical. At a point d = 37 meters from the tree, the angle of elevation to the top of the trees
is a = 29° (see figure). Find the height h of the tree. (Round your answer to one decimal place.)
h =
m
d m
Additional Materials
eBook

Answers

Answer:

Height of the tree is 40.0 meters.

Step-by-step explanation:

From ΔABC,

m∠ABC = 90°

Since, m∠ABC = m∠CBD + m∠ABD

90° = 6° + m∠ABD

m∠ABD = 90°- 6° = 84°

By triangle sum theorem in ΔABD,

m∠ABD + m∠BDA + m∠DAB = 180°

84° + 29° + m∠BDA = 180°

m∠BDA = 180° - 113°

             = 67°

By sine rule in ΔABD,

[tex]\frac{\text{sin}(\angle BDA)}{d}= \frac{\text{sin}(\angle ABD)}{h}[/tex]

[tex]\frac{\text{sin}(67)}{37}= \frac{\text{sin}(84)}{h}[/tex]

h = [tex]\frac{\text{sin}(84)\times 37}{\text{sin}(67)}[/tex]

h = 39.98

h ≈ 40.0 meters

Therefore, height of the tree is 40.0 meters.

The sine rule is the ratio of the side length to the sine of the opposite angles. Then the height of the tree is 40 meters.

What is trigonometry?

Trigonometry deals with the relationship between the sides and angles of a triangle.

Because of prevailing winds, a tree grew so that it was leaning 6º from the vertical.

At a point d = 37 meters from the tree, the angle of elevation to the top of the trees is a = 29° (see figure).

∠ABC = 90

We have

In ΔABC

∠ABC = ∠CBD + ∠ABD

∠ABD = 90 - 6

∠ABD = 84

By triangle sum in ΔABD, we have

∠ABD + ∠BDA + ∠DAB = 180

                            ∠BDA = 180 - 84 - 29

                            ∠BDA = 67

Then by the sine rule, we have

[tex]\begin{aligned} \dfrac{\sin \angle BDA}{d} &= \dfrac{ \sin \angle ABD }{h}\\\\\dfrac{\sin 67}{37} &= \dfrac{\sin 84}{h}\\\\h &= \dfrac{\sin 84} \times 37{\sin 67}\\\\h &= 39.98 \approx 40 \end{aligned}[/tex]

More about the trigonometry link is given below.

https://brainly.com/question/22698523

Solve this system using the substitution method.
2x + 2y = 14
y = 3x - 5
x=
y=

Answers

picture has full answer

Answer:

The solution is:

x=3

y=4

Step-by-step explanation:

We need to solve this system using the substitution method.

2x + 2y = 14

y = 3x - 5

Substitution method involves placing value of x or y from one equation to other equation.

We have:

[tex]2x + 2y = 14--eq(1)\\y = 3x-5 --eq(2)[/tex]

We will put value of y from equation 2 into equation 1.

[tex]2x + 2y = 14\\Put\:y = 3x - 5\\2x+2(3x-5)=14\\2x+6x-10=14\\8x=14+10\\8x=24\\x=\frac{24}{8}\\x=3[/tex]

So, we get x =3

Now, put value of x in equation 2 to find value of y

[tex]y = 3x - 5\\Put\:x=3\\y=3(3)-5\\y=9-5\\y=4[/tex]

So, we have y = 4

The solution is:

x=3

y=4

2x-10+x-6=2
combing like terms..

Answers

First you will combine the “x’s” so x+2x=3x then you would add 10 and 6 16 and subtract it to move it to the other side of the = so 2-16= -14 then you would divide 3x and -14 by 3 then there is your answer hope this helps

pls help due asap
:..

Answers

Answer:

a

Step-by-step explanation:

Please please please help!! I need this URGENT
Dan buys a car for £2700.
It depreciates at a rate of 1.4% per year.
How much will it be worth in 5 years?
Give your answer to the nearest penny where appropriate.

Answers

Answer:

So it depreciates at a rate of 1.4% so 25% a year and you do £2700 multiply by 25 each year £2700 multiply by 25 x 5 = £540 in 5 years

Step-by-step explanation:

Answer:

£

 

2516.22

Step-by-step explanation:

£

 

2516.22

Order the following set of numbers in ascending order (least to greatest): 2.007; 2.714; 2.09; 2.741; 2.07

Answers

Answer:

2.007;2.07;2.09;2.714;2.741

Step-by-step explanation:

2.007 is the least and 2.741 is the greatest

Answer: 2.007, 2.07, 2.09, 2.714, 2.741

Step-by-step explanation:

ASAP!!!
Is the relation in the table below a function?

Answers

Answer:

No

Step-by-step explanation:

A relation is a function if every x-value has exactly one y-value.

Because the x-value 1 has two y-values (-3 and 3), the relation is not a function.

Plotting (1, -3) and (1, 3) will produce a vertical line that intersects the function at two points.

Therefore, the relation is not a function.

Hope that helps.

The library is having a book sale. Hardcover books sell for $4 each, and paperback books are $2 each. If Ayanna spends $26 for 8 books, how many hardcover books did she buy?

Answers

Answer: 6

Step-by-step explanation: I divided $26 by $4

Answer: I don't really know how to explain, but I will give you the straight up answer

5 HARDCOVER BOOKS (would total up to $20)

3            paperback books (would total up to $6)

Step-by-step explanation:

Use triangles ABC and A'B'C' for Exercise. Use the coordinates to find the lengths of the sides.
please help is due in 20 minutes

Answers

Answer:

AB = 2

BC = 2

A'B' = 6

B'C' = 6

Step-by-step explanation:

A small box of nails was 10 2⁄8 inches tall. If the large box of nails was 2 2⁄5 inches taller, how tall is the large box of nails? Answer as an improper fraction.

Answers

Answer:

253/20

Step-by-step explanation:

Other Questions
Change is often difficult. This is a theme found throughout Jungle Book: Mowgli's BrothersWhich detail best supports the theme that change is often difficult?O Shere Khan wants Mowgli to come with him.O Mowgli begins to cry after driving the wolves away with fire.O Mowgli frightens Shere Khan by waving a burning branch.O At dawn, Mowgli goes down the hillside to meet his own kind. Juan received a bank account statement reporting the recent changesto his account. The statement showed an overall increase in theaccount balance of $1,909.15. During the time shown on thestatement, Juan was paid twice and withdrew a total of $1,437.99 tocover all his bills and expenses. How much (x) is each of Juan'spaychecks? Answer questions in a complete sentence 1.) Fuiste al cine? 2.) Fue Juan al supermercado?3.) Fueron ustedes a comprar los zapatos?4.)Adonde fuiste ayer?5.) Cundo fue Miguel al centro comercial? Factor the trinomial. Factor out the GCF first.11x^2 + 33x + 22 What is the nature of new elements added to the periodic table in the last hundred years? A. All were discovered naturally. B. All were synthesized artificially. C. Some were discovered and some were synthesized. D. No new elements have been added to the periodic table in that time. In 2016, Gruman uses the machine for 1,700 hours and produces 40,000 units. In 2017, Gruman uses the machine for 1,200 hours and produces 34,000 units. If required, round your final answers to the nearest dollar. Required: Compute the depreciation for 2016 and 2017 under each of the following methods: Reading the newspaper this morning, you found an article that mentions a woman named Nada who used to live down the street from you. Nada was recently hired by the First State Bank to assist in the evaluation and forecasting of future financial and economic conditions in the communities served by the bank. In which area of finance does Nada work Which angle is complementary to 2. What does Mercutio think of Romeo's attitude the morning after the party? In the last 40 days, Mr. Neptune's newspaper has been delivered late 6 times. What is the experimental probability that it will be delivered late tomorrow? I don't know who wanted this one but here's Harry Potter Alcohol blocks some of the messages trying to get to the brain.True or False A family went on a vacation and used 4.5 gallons of gasoline to travel 130 miles. How many gallons of gasoline will they need to travel 250 miles?Answers:A. 8 GallonsB. 9 GallonsC. 10 GallonsD. 29 Gallons The following is the results of a genotype being "foiled" for a dihybrid cross: BS | Bs | bS | bsDetermine the parents genotype A) BBSSB) BBssC) BbSsD) BbSS PLEASE I NEED THIS ASAP Write a paragraph describing the location of the major population centers in Egypt. Make note of their proximity to physical features or other natural resources. What characteristics do these locations have in common? SCHOOL NEED TO ENFORCE LAWSAND COME DOWN HARD ON BULLIES.-i need some points for this Twice the difference of 1 and a number. Join each pair of the following sentences by suitable conjunctions.i)Run fast. You will miss the train.ii)We respect him.He is an honest maniii)we drove very fast . we soon overtook our friends iv)she will get the price .she deserves it.v) you should speak politely. you may offend someday. vi) he looks ordinary. he is very popular Help pls question is the picture above :)))) A pair of jeans that originally cost $40 was marked up 50%. During a sale the jeans were discounted 50%. Whatis the sale price?Can you explain how to show my work step by step