How to find the exact answer of the area and circumference
I know how to find the approximate answer for both but i don’t know how to find the exact answer. Pi should be included in the exact fraction.
Can someone explain pls:)

How To Find The Exact Answer Of The Area And Circumference I Know How To Find The Approximate Answer

Answers

Answer 1

Answer:

[tex]\pi \\[/tex] is irrational so any attempt to use 3.14... is never EXACT...

do not try to convert it ... if it asks for exact..

write 81[tex]\pi \\[/tex]  or 9 [tex]\pi \\[/tex]  etc. don't put in 63.62 like answers

Step-by-step explanation:


Related Questions

Sarah had 25 candies. Sarah gave 25 of the candies to her sister. Of the amount left, she gave 2/3 to her friend. How many candies does Sarah have left for herself?

Answers

Answer:

She has 5 candles left.

Step-by-step explanation:

Total of candy Sarah has = 25candies

If Sarah gave 2/5 of the candies to her sister, the total amount she gave her sister will be 2/5 of 25

2/5 of 25 = 10

The remaining candy left will be 25-10 which is 15.

If she gave 2/3 of the amount left to her friend, the amount she gave her friend will be 2/3×15 = 10candies.

Find the size of the angles marked by letters in the following diagram.​

Answers

a=132°

b=20°

Answer:

Solution given:

a=132°[exterior angle of a cyclic quadrilateral is equal to the opposite interior angle]

again

In ∆ BCO is similar to ∆ BOE

so

b=20°[corresponding angle of similar triangle are equal]

Let f(x) = 9x − 1 and g(x) = x3. Evaluate (g ∘ f)(0).

A.
8


B.
−1


C.
1


D.
0

Answers

Step-by-step explanation:

here's an answer for thee

A data set is displayed using a dot plot. The range of the data is between 50 and 90, and the distribution is skewed left. Where is there most likely a peak in the data?

left side of the graph
right side of the graph
middle of the graph
cannot be determined without more information
please help

Answers

Hello,

Your answer would be right side of the graph

Please mark as brainiest

The peak in the data would likely be the right side of the graph.

The distribution of a data set when displayed on a dot plot is said to be skewed left (left skewed) when most of the data appear on the right side of the graph. This means, the highest scores are on the right while the lowest values of the variable are on the left side of the graph (in order words, tapers towards the left of the graph). See the image labelled A in the attachment below.

Also, for a data set distribution that is skewed right (right skewed), most of the data appear on the left side of the graph. It will have a tail tapering to the right. See the image labelled A in the attachment below.

For  a data distribution that is skewed to the left, the peak in the data would most likely be at the right side of the graph.For  a data distribution that is skewed to the right, the peak in the data would most likely be at the left side of the graph.

Therefore, for data set that ranges between 50 and 90, and the distribution is skewed left, the peak in the data would be to the right of the graph.

Learn more about skewness of a data set here:

https://brainly.com/question/3252860

I need b and c full problems!

Answers

Answer:

b:    [tex]\frac{5-\sqrt{11} }{2}[/tex]< x < [tex]\frac{5+\sqrt{11} }{2}[/tex]  

c:  x < -5 , x > 7

Step-by-step explanation:

Find the area of the triangle.
A. 73.6ft^2
B. 65.8 ft^2
C. 69.1 ft^2
D. 70.8 ft^2

Answers

Please look at the picture for a step by step explanation - Answer choice is A

The area of the triangle is (A) [tex]73.6ft^{2}[/tex].

What is trigonometry?The study of correlations between triangles' side lengths and angles is known as trigonometry. The field was created in the Hellenistic era in the third century BC as a result of the use of geometry in astronomical research.Trigonometric area of a triangle:

Area = [tex]\frac{1}{2}[/tex] × [tex]a[/tex] × [tex]b[/tex] × [tex]sin[/tex] (θ)

Solution -

Now, out the values in the formula for the solution.

[tex]A=\frac{1}{2} (16)(10)sin(67^{o} )\\A= 80sin(67^{o} )\\[/tex]

[tex]A=73.6ft^{2}[/tex]

Therefore, the area of the given triangle is (A) [tex]73.6ft^{2}[/tex].

Know more about the area of triangles here:

https://brainly.com/question/17335144

#SPJ2

pls answer correct
for class 9 only

Answers

Answer:

hope it helps

Step-by-step explanation::

a) Consider a body having initial velocity 'u'. Suppose it is subjected to a uniform acceleration 'a' so that after time 't' its final velocity becomes 'v'. Now, from the definition of acceleration we know that:  

Acceleration =  Time taken  Change in velocity  or Acceleration =  time taken

                Final velocity- Initial velocity    

So, a=  t v−u

​ at=v−u  and, v=u + at  

where v= final velocity of the body

u= initial velocity of the body

a= acceleration

and t= time taken  

(b) Initial velocity, u=54km/h=15m/s

Final velocity, v=0m/s

Time, t=8s

Acceleration, a=?

a=  t v−u

​  =  8 0−15

​  =  8 −15 ​  m/s  2

=−1.875m/s  2

Which pair of angles are vertical angles?
ZWRU and ZSRT
ZWRS and VRT
w
ZVRU and ZTRS
R
AVRT and ZSRT
O

Answers

Given:

A figure.

To find:

The pair of vertical angles.

Solution:

If two lines intersect each other, then they form 4 disjoint angles at the intersection point. From these 4 angles the alternative angles are known as vertical angles or vertically opposite angles.

In the given figure, the line TW and line SV intersect each other at R. So, the pair of vertical angles is [tex]\angle WRS[/tex] and [tex]\angle VRT[/tex].

Therefore, the correct option is B.

∠WRS and ∠VRT are vertically opposite angles

Vertical angles:

Vertical angles are a pair of opposite angles formed by intersecting lines. They are formed when two lines meet. This angles are vertically opposite each other.

Vertically opposite angles are equal or congruent.

Therefore,

∠WRS and ∠VRT are vertically opposite angles

learn more on vertical angles here: https://brainly.com/question/17065398

x+5=7 .Find the value of x.

Answers

Answer:

x=2

Step-by-step explanation:

x+5=7

Subtract 5 from each side

x+5-5=7-5

x =2

Answer:

2

Step-by-step explanation:

x + 5 = 7

=> x = 7 - 5

=> x = 2

Let t
4 and u = 6 + 2i. Find t * u

Answers

Answer:

24 + 8i

Step-by-step explanation:

t = 4

u = 6 + 2i

t x u

= 4 ( 6 + 2i )

= 24 + 8i

Answer:

24+8i

Step-by-step explanation:

i took the test

Anyone good at Ks3 math?

Answers

Answer:

210 Km

Step-by-step explanation:

Distance travelled is calculated as

distance = speed × time ( time is in hours )

              = 90 × 2 [tex]\frac{1}{3}[/tex]

             = 90 × [tex]\frac{7}{3}[/tex]

            = 30 × 7

            = 210 Km

If f(x) = x2, and
g(x) = x – 1, then
f(g(x)) = [? ]x2+[?]+ [?]

Answers

Answer:

f(g(x)) = x² - 2x + 1

Step-by-step explanation:

To find f(g(x)), substitute x = g(x) into f(x) , that is

f(g(x))

= f(x - 1)

= (x - 1)² ← expand using FOIL

= x² - 2x + 1

Find the volume of the composite solid.
10 cm
12 cm
32 cm
10 cm

Answers

Your is answer would be choice C which is : 32 cm

Answer:

Your is answer would be choice C which is : 32 cm

Step-by-step explanation:

Two adjacent angles of a parallelogram have equal measure. Find the
measure of each of the angles of the parallelogram.

Answers

Step-by-step explanation:

Let ABCD be the parallelogram with ∠A = ∠B.  

We know: Sum of adjacent angles = 180°  

∠A + ∠B = 180º  

2∠A = 180º (∠A = ∠B)  

∠A = 90º  

∠B = ∠A = 90º  

∠C = ∠A = 90º (Opposite angles)  

∠D = ∠B = 90º (Opposite angles)  

Thus, each angle of the parallelogram measures 90º

Answer:

All 4 angles are 90 degrees.

Step-by-step explanation:

The measure of 2 adjacent angles in a parallelogram add up to 180 degrees.

If they have equal measure then they are both 90 degrees.

As it is a parallelogram:-

the measure of each angle is 90 degrees.

Please help me anyone

Answers

Answer:

115

Step-by-step explanation:

When x = -11, x^2 = 121. y = 121 - 6 = 115.

Hope this helped,

~cloud

Answer:

115

Step-by-step explanation:

y = x^2 - 6

Let x = -11

y = (-11)^2 - 6

y = (121) -6

   = 115

Help me asap
Show your work too so i don’t get grounded

Answers

Answer:

1. 496 ft, 2. 126 mm, 3. 880 in, 4 168 cm, 5. 960m, 6. 42

Step-by-step explanation:

SA= Surface area, and surface area is A=2(w×l+h×l+h×w) and volume is V=w×h×l

W=width

H=height

L=length

Answer:

1. SA=58

2. SA=48

3. SA=78

4. V=168

5. V=960

6 V=420

Step-by-step explanation:

on 1-3 you are looking for the surface area and in order to look for the surface area of a rectangle prism it is 2(height)x2(lenght)x2(width). so you just plug in the number height is how tall the shape is, length is how long the shape is and width is hpw far the shape goes back. then you multiply the H, L, W by 2 and the you add all of the numbers and boom you get your answer.

Now for the Volume you just multiply the heigh x length x width and boom you answer

height increase (m)
Temperature drop (°C)=
200


If the temperature at a height of 500 m is 23°C, what will it be when you climb to 1300 m
How far would you need to climb to experience a temperature drop of 5°C?

Answers

Complete question is;

In mountaineering, in general, the higher you go, the colder it gets. This formula shows how the heights and temperatures are related.

Temperature drop (°C) = height increase(m)/200

A) If the temperature at a height of 500 m is 23°C, what will it be when you climb to 1300 m

B) How far would you need to climb to experience a temperature drop of 5°C

Answer:

A) 19°C

B) 1500 m

Step-by-step explanation:

A) We are told that the temperature is at a height of 500 m is 23°C, now we want to find the temperature when height increases to 1300 m.

Thus, it means;

Height increase = 1300 - 500 = 800 m

Thus, from the formula;

Temperature drop (°C) = height increase(m)/200, we have;

Temperature drop (°C) = 800/200 = 4°C

Now,since Initial temperature was 23°C, thus temperature at this increased height ; 23°C - 4°C = 19°C

B) for a temperature drop of 5°C, we have;

5°C = height increase(m)/200

Height increase = 200 × 5

Height increase = 1000 m

Thus, you will need to climb; 500 + 1000 = 1500 m

A motorist travels 90 miles at a rate of 20 miles per hour. If he returns the same distance at a rate of 40 miles per hour, what is the average speed for the entire trip, in miles per hour?

Answers

Answer:

The answer is x = 1800

Step-by-step explanation:

Hope this helps :)

Have a nice day.

How many square millimeters are covered with paint? Express the answer in terms of π.

336π square millimeters
400π square millimeters
416π square millimeters
464π square millimeters

Answers

Answer:

336π square millimeters

Answer:

A

Step-by-step explanation:

ASAPpppppppppppppppppppppp

Answers

Answer:

-4/5

Step-by-step explanation:

2/5 ÷ -1/2

Copy dot flip

2/5 * -2/1

-4/5

Nigel is making holiday cookies. His recipe calls for 1/2 pound of raisins. The recipe also calls for 1/4 pound of dates and 1/8 pound of dried apricots. How much dried fruit will be put into the cookies in all?

A: 1/8 pound
B: 3/8 pound
C: 5/8 pound
D: 7/8 pound

Answers

Answer:

D. 7/8 pound

Step-by-step explanation:

1/2+1/4+1/8=7/8

7/8 pound of dried fruit will be put into the cookies in all.

a group of 5 friends is out to dinner Each of the friends will order the dinner special and they have a coupon for $10 off the entire bill which equation can be used to find the total cost of all the dinners after the coupon is applied.

Answers

Answer:

TC = 5x -10

Step-by-step explanation:

Answer:

5d-10=C

Step-by-step explanation:

Because 5 friends are out to dinner so the cost of one meal is multiplied by five. Then you subtract 10 off the total for your answer, which is represented by the variable c

18
20 men, 10 women and 10 children are in a competition.
The mean score for the women is 15.6.
The mean score for the children is 9.2.
Kevin says that the mean score for all 40 people is 11.2.
Work out the mean score for the men.

Answers

Answer:

20

Step-by-step explanation:

The mean score for the women = 15.6

Sum of score for the women = 15.6*10 = 156

The mean score for the children = 9.2

Sum of score for the children = 9.2 * 10 = 92

The mean score for all 40 people = 11.2

Sum of the score of 40 people = 11.2 *40 = 448

Sum of the score for 20 men = 448 - 92 - 156 = 200

Mean of the score for the men = 200÷ 20 =20

Tìm x,y thỏa mãn: x^2-2xy+3y-5x+7=0

Answers

I think there's an error with this question. Mind to check it back and tell me the detail?

What is the value of x in the equation 3
3x+9 - ģx-37
?

Answers

Answer:

x = 6

Step-by-step explanation:

we can multiply the entire equation by 3 to simplify the numbers

-2x + 27 = 4x - 9

27 = 6x - 9

36 = 6x

x = 6

What is the equivalent expression to 7/5y What is the equivalent expression to 0.68y What is the equivalent expression to 3/5y What is the equivalent expression to 1.32y

Answers

Given:

The expressions are:

[tex]\dfrac{7}{5}y[/tex]

[tex]0.68y[/tex]

[tex]\dfrac{3}{5}y[/tex]

[tex]1.32y[/tex]

To find:

The equivalent expression to the given expressions.

Solution:

There can be more than one equivalent expressions to the given expression.

[tex]\dfrac{7}{5}y=1.4y[/tex]

Therefore, [tex]1.4y[/tex] is equivalent to [tex]\dfrac{7}{5}y[/tex].

[tex]0.68y=\dfrac{68}{100}y[/tex]

[tex]0.68y=\dfrac{17}{25}y[/tex]

Therefore, [tex]\dfrac{17}{25}y[/tex] is equivalent to [tex]0.68y[/tex].

[tex]\dfrac{3}{5}y=0.6y[/tex]

Therefore, [tex]0.6y[/tex] is equivalent to [tex]\dfrac{3}{5}y[/tex].

[tex]1.32y=\dfrac{132}{100}y[/tex]

[tex]1.32y=\dfrac{33}{25}y[/tex]

Therefore, [tex]\dfrac{33}{25}y[/tex] is equivalent to [tex]1.32y[/tex].

I just need to number can anyone give me them?

Answers

Answer:

See below & picture.

Step-by-step explanation:

First, graph the given point, (2, 3).

Now use the slope to find two other points on the graph. The slope is -3/4. Start at (2, 3). Go down 3 and right 4. That is another point. Go back to point (2, 3). Using the slope, go left 4 and up 3. That is another point. Now draw a line through those three points. See the picture below.

can someone please help ? i know one of the answers is c but couldn’t b and d also work ? when you figure them out you get x is less than 10 as well.

Answers

Answer:

b,c,d

Step-by-step explanation:

a ≤ 10  would have a closed circle at 10

b x+10 <15  x < 10  correct  open circle line going to left

c x < 10 correct  open circle line going to left

d 0 > x-10  10 > x    x < 10  correct  open circle line going to left

e  2 > x-11 13 > x   would have open circle at 13

The open circle tells us that the sign is only less than/greater than, not less than/greater than or equal to. That immediately rules out A.

Now, we can see that this is a less than inequality, because the arrow is pointing to the left, toward the negative numbers. And, the inequality covers every number that is less than 10.

A - Incorrect, less than or equal to

B - Correct, when solved = x < 10

C - Correct

D - Correct, when solved = x < 10

E - Incorrect, when solved = x < 13

Hope this helps!

which statement is true regarding the functions on the graph

Answers

Answer:

f(3)=g(3)

Step-by-step explanation:

In this graph, the x (horizontal axis) represents the input and the y (vertical axis) represents the output. We know this because a function of x (f(x) and g(x) are two examples here) takes in x as the input, and y is the only variable left to be the output.

The question is asking when the two functions are equal based on the possible answers. First, we have to locate the point where the two lines meet, as depicted by the black dot in the picture. To find the x value of this, we can draw a vertical line (the light blue one I drew in the picture) and find where it meets the x axis (the horizontal one). This lines up with x=3. Similarly, for the y value, we can draw a horizontal line (the light green one) and find where it meets the y axis (the vertical one). This is when y=6.

Therefore, our functions are equal when x=3 and y=6. This means that f(3) = 6 and g(3)=6, and f(3)=6=g(3)

use the zeros and the labeled point to write the quadratic function represented by the graph

Answers

Answer:

[tex]\sf \boxed{\sf y = -x^2-x +2 }[/tex]

Step-by-step explanation:

A graph of the quadratic function is given to us and by using the Zeroes , we need to write the function . From the graph , we can sew that , it cuts the x axis on (-2,0) and (1,0) .

Hence , x = -2 and 1 are the zeroes of the function .

In general if we have [tex]\alpha[/tex] and [tex]\beta[/tex] as the zeroes of the function , then the quadratic function is given by ,

[tex]\sf\longrightarrow\gray{ f(x) = (x -\alpha )(x-\beta) }[/tex]

Here the zeroes are -2 and 1 , on substituting the respective values in the formula , we have ,

[tex]\sf\longrightarrow f(x) = \{ x -(-2)\} ( x -1) [/tex]

Simplify inside the curly brackets ,

[tex]\sf\longrightarrow f(x) = ( x +2)(x-1) [/tex]

Multiply the two terms ,

[tex]\sf\longrightarrow f(x) = x ( x -1)+2(x-1) [/tex]

Simplify the brackets ,

[tex]\sf\longrightarrow f(x) = x^2-x +2x -2 [/tex]

Add the constants and the variables ,

[tex]\sf\longrightarrow f(x) = x^2+x -2 [/tex]

When the constant of the function is (-1),

[tex]\sf\longrightarrow\boxed{\blue{\sf y = -x^2-x+2}} [/tex]

Hence the equation of the function is y = -x² -x + 2 .

Answer:

the answer is " y=-3x^2-3x+6"

Step-by-step explanation:

i just took the test

Other Questions
Two towns, each with three members, are deciding whether to put on a fireworks display to celebrate the New Year. Fireworks cost $360. In each town, some people enjoy fireworks more than others. In the town of Bayport, each of the residents values the public good as follows: Resident Value (Dollars) Musashi 50 Rina 100 Sean 300he total benefit of the fireworks display to the town of Bayport is $: ___________ Rewrite the expression in the form a^n.1/a^-5/6 1) You should keep the milk in the refrigerator_____________ it doesnt go bad. Suppose the method of tree ring dating gave the following dates A.D. for an archaeological excavation site. Assume that the population ofxvalues has an approximately normal distribution.1241 1210 1267 1314 1211 1299 1246 1280 1291a. Determine if the data meets the initial conditions to construct a confidence interval.b. Find the sample mean yearxand sample standard deviation.c. What is the maximal margin of error when finding a 90%confidence interval for the mean of all tree-ring dates from this archaeological site? Find one example of an idea from Du Bois's speech that you believe the narrator of The Autobiography of an Ex-Colored Man would agree with. Find one example of an idea that you believe the narrator would disagree with. Explainboth in a well-rounded paragraph, and cite specific evidence from both the speech and the novel to support your ideas. I am trying to help someone with a search. What I am trying to find is a poster from around the early 90s It is a boy scouts poster that is titled Help clean up Canada. Any help on where I could find it? Thanks--------------------------------------------------------Estoy tratando de ayudar a alguien con una bsqueda. Lo que estoy tratando de encontrar es un cartel de alrededor de los aos 90 Es un cartel boy scouts que se titula "Help clean up Canada" -el ttulo aparece en ingls- . Alguna ayuda sobre dnde podra encontrarlo? Gracias If the point A at (5, 3) is rotated clockwise about the origin through 90, whatwill be the coordinates of the new point? The arithmetic mean of 10 consecutive even integers is 3. What is the least of these 10 even integers?PLS HELP WILL GIVE BRAINLIEST History of Stock Exchange in India How many moles are in 32g of O2? The perimeter of a rectangle is 24 cm. If the length is 7 cm, find it width Which of the following is a consumer right per the consumer bill of rights?1. Right to know2. Right to return3. Right to profit4. Right to sanity how can the graph of g(x) =x2+4 be obtained from the graph of f(x) =x2 In most cases of multiple myeloma, the excess antibodies found in the blood all share an identical protein sequence (thus they have the same structure). Consider such a case where all of the antibodies are identical and think about the cell(s) of origin. How many different B cell clones gave rise to this immune cancer? Please help with this question A club has 30 members. How many ways are there to select a President. Vice-President and Secretary from this club? Assume no one can occupy more than oneposition. PLS HELP I NEED HELP!!YOU WILL BE DOING ME A LOT IF YOU COULD HELPPrepare a speech about cultural identity using what you've learned from the shortstory "Everyday Use" by Alice Walker. Suppose a rumor is going around a group of 191 people. Initially, only 38 members of the group have heard the rumor, but 3 days later 68 people have heard it. Using a logistic growth model, how many people are expected to have heard the rumor after 6 days total have passed since it was initially spread? (Round your answer to the nearest whole person.) A 42 inch wire is bent into the shape of a rectangle whose width is twice itslength. Set up an equation to find the length of the rectangle. Check all answers that apply. Based on the model output, we can say that both the size of the move (CuFt) and number of large furniture moved are important considerations when estimating the total number of labor hours required. We can make this claim because __________.'