Formula is S=2nr squared
If r=7 and n=3.14,calculate S rounded off to two decimal places.​

Answers

Answer 1

Answer:

307.72

Step-by-step explanation:

S=2nr²

S=2×3.14×7²

S=307.72


Related Questions

Please help I’ll give brainliest if it’s correct !! :)))

Answers

Answer:

A textbook weighs about 1 pound and is about 1 foot long

A car weighs about 1 ton and is about 5 yards long

A mosquito weighs about 2 mg and is about 1 inch long

Step-by-step explanation:

#commonsense lol

Meghan is 45 inches tall. Which measurement describes Meghan's height?

Answers

Answer:

3 feet and 9 inches

Step-by-step explanation:

answer is already there

Answer:

45 inches = 3.75 foot

45 inches = 1.143

Step-by-step explanation:

An inch measurement It is equal to ​1⁄36 yard or ​1⁄12 of a foot

Metric (SI) units: 25.4 mm

The number of 5p, 10p, and
20p coins in a jar are in the
ratio 7:4:3. If there are
5p coins are worth 70p
calculate the total value of
the money in the jar.

Answers

Answer:

Step-by-step explanation:

70p/5=14

14*4=56*10=560p

14*3=42*20=840p

840+560+70=1470

=1470p or (£14.70)

The total value of money in the jar is 270p.

What is addition?

Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.

Given:

The number of 5p, 10p, and 20p coins in a jar are in the ratio 7:4:3.

That means,

Number of 5p coins are 5x, 10p coins are 4x and 20p coins are 3x.

And 5p coins are worth 70p.

That means, x = 70p/5p

x = 14

So,

The total worth of coins are,

= 70p + 80p + 120p

= 270p

Therefore, the worth of the coins are 270p.

To learn more about the addition;

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I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

IF YOU SEND ONE MORE LINK AGAIN I WILL REPORT YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

h(x) =-(x+5)^3

Step-by-step explanation:

Can yall help im mentally slower than the average human

Answers

Answer:

I think it would be 216cm

Step-by-step explanation:

how I got this answer?:

cubes are mostly the same in all sides due to all the sides being equal

The area of 6 squares is 216 cm^2
Each square is then 216/6 or 36 cm^2

The area of a square is length of one side times the length of an adjacent side or Area = s^2
36 = s^2
s = 6

pls help me with this question. will give brainliest.

q)Calculate the length of the side marked x in each of the following.

Answers

Answer:

points

Step-by-step explanation:

Nicholas Has a very large soup pot shaped like a cylinder that has a height of 20 inches and a radius of 6 inches. How much soup can Nicholas’s soup pot hold ?

Answers

Answer:

2262 in³

Step-by-step explanation:

Given that:

Height, h = 20 inches

Radius, r = 6 inches

Volume of a cylinder is given as :

V = πr²h

V = π * 6² * 20

V = π * 36 * 20

V = 2261.9467 in³

Hence, Nicholas pot can hold about 2262 in³ of soup

Find the area of the shaded region. Round your answer to the nearest tenth.

Answers

Answer: 2.5 or 2 1/2.

Step-by-step explanation:

Please help me I don’t understand

Answers

A. I hope this is right sey if it ain’t

Answer:

C

Step-by-step explanation:

tan α=opposite side /adjacent side

tan P=16/12=4/3

tanQ=12/16=3/4

find the degree of the polynomial

Answers

Answer:

Step-by-step explanation:

1) 5a - 2b² + 1

Degree of the polynomial = 2

2) 4x²-3x³ + 2x + 12

-3x³ + 4x² + 2x + 12

Degree of the polynomial = 3

To find the degree of the polynomial, arrange it in descending as per the power of the variables.

The highest power of the variable is the degree of the polynomial.

Determine which function has a greater initial value and explain how you know.
function 1: y=2(1/3)^x​

Answers

Answer - Function 2

Function 1 - y = 2x (1/3)^x    x = 0 =2*0*1 = 0

Function 2 have the value for 3 for x = 0

Function 2 is greater

I suck at math so thanks for helping

Answers

Answer:

7.5

Step-by-step explanation:

The square has 4 equal sides, so you take the p,(30) and divide it. 30/4 = 7.5

To check your answer add 7.5 four times since the square has 4 equal sides.

7.5 + 7.5 = 15

15 + 7.5 = 22.5

22.5 + 7.5 = 30

Can someone help me with this. Will Mark brainliest.

Answers

Answer: [tex]\sqrt{89}[/tex]

Step-by-step explanation:

[tex]d=\sqrt{(x_{2}-x_{1)} ^{2} } +(y_{2} -y_{1} )^{2} }[/tex]

(-1, 9) and (7,4)

[tex]d=\sqrt{(7-(-1))^{2}+ (4-9)^{2} }[/tex]

[tex]d= \sqrt{8^{2} +(-5)^{2} }[/tex]

[tex]d=\sqrt{64+25} \\d=\sqrt{89}[/tex]

Which of the following constructions can be accomplished with paper
folding?
Check all that apply.
A. Drawing a perpendicular line segment through a given point on a
given segment
. B. Constructing a circle with a radius from a given line segment
0 C. Finding the midpoint of a segment
D. Drawing a perpendicular line segment from a given point to a
given segment

Answers

The constructions that could be accomplished with paper folding are:

A.  Drawing a perpendicular line segment through a given point on a given segmentC. Finding the midpoint of a segmentD. Drawing a perpendicular line segment from a given point to a given segment

How do you find the midpoint of a segment using paper folding?

To do the above, one can fold the paper so that the two endpoints of the line segment can be seen on top of each other.

A segment perpendicular to another segment can be done using paper folding by folding the paper so that the paper is folded via the point and the segment that is seen on top of its own self.

Therefore, The constructions that could be accomplished with paper folding are:

A.  Drawing a perpendicular line segment through a given point on a given segmentC. Finding the midpoint of a segmentD. Drawing a perpendicular line segment from a given point to a given segment

Learn more about line segment from

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help me please! I’ll give y’all points

Answers

Answer:

11

Step-by-step explanation:

Answer:

Y = 11

Step-by-step explanation:

I think we are using the order of PEMDAS. We replace the x with 3. If we simplify this expression this is just 3 to the power of 2 multiplied by 2 then subtracted by 7. So 3^2 = 9 then 9 x 2 = 18. Then 18 minus 7 = 11.

I need help ASAP with this please help

Answers

Answer:11/18, or  11 to 18.

In a school, 30% of the students arrived by private car, 15 travel by taxi and the remainder walk to school. If the school has a population of 230, how many more students walk to school than arrives by car?

Answers

Answer:

57.5 students

Step-by-step explanation:

Given that

The 30% students would be arrived by private car

So 15% would be travelled by taxi

And, the remaining i.e. 55% would be walk to school

Since the population of the school is 230

So by car, the students would be

= 230 × 0.30

= 69

By walk, the students would be

= 230 × 0.55  

= 126.50

Now the more students would be

= 126.50 - 69

= 57.5 students

helpppppppp fassstttttttt​

Answers

Answer:

133

Step-by-step explanation:

A right rectangular prism has a length of 3 1/3 yards, a width of 2 1/2 yards, and a height of 4 1/3 yards. What is the volume of the prism?
Answer choices:
A: 10 1/6 cubic yards
B: 24 1/18 cubic yards.
C: 35 1/2 cubic yards.
D: 36 1/9 cubic yards.

Answers

A because they have a common denominator also it has to be the least common denominator which is 6


Carlos designs the skateboard ramp shown in the diagram.
.132 in,
h
1220
Enter the height of the ramp (h), in inches. Round your answer
to the nearest whole inch.

Answers

Answer:

sin22⁰=h/132

sin22⁰×132=h

h=49.44

h=49.4inches

If length of ramp of skateboard is 132 inch and angle is 22° then height of ramp is 49 inch

What is a triangle ?

A triangle is a polygon with three edges and three vertices

Here in the given triangle

Perpendicular=h

Hypotenuse =132

angle=22°

So height of ramp can be calculated as

Sin 22°= Perpendicular/Hypotenuse

Sin 22°= h/132

h= 132[tex]\times[/tex]sin 22°

h= 132[tex]\times[/tex]0.37460659341

h=49.4480703301

[tex]h \approx49[/tex] inch

If length of ramp of skateboard is 132 inch and angle is 22° then height of ramp is 49 inch

To learn more about triangles visit : https://brainly.com/question/23945265

WRITE THE EXPANDED FORM OF THE EXPRESSION
-5/8 (y+x) =

Answers

Answer:

-5/8x -5/8y

Step-by-step explanation:

Use the distributive property to expand

WILL GIVE BRAINLIEST NEED ASAP


The following system of equations has exactly one (x, y) pair for its solution.
4x + 6y= 24
2x+y=8
If we add the two equations in the original system, we have 6x + 7y= 32.
Explain why the same (x, y) pair is also a solution to this equation. Use math and be
specific in your explanation!

Answers

Solve for
y
y in
2
x
+
y
=
8
2x+y=8.
y
=
8

2
x
y=8−2x

2 Substitute
y
=
8

2
x
y=8−2x into
4
x
+
6
y
=
24
4x+6y=24.

8
x
+
48
=
24
−8x+48=24

3 Solve for
x
x in

8
x
+
48
=
24
−8x+48=24.
x
=
3
x=3

4 Substitute
x
=
3
x=3 into
y
=
8

2
x
y=8−2x.
y
=
2
y=2

5 Therefore,
x
=
3
y
=
2



x=3
y=2
​ look in comments to read it better but x=3 y=2 hope this helps :)

Solve system by substitution.

−5x−7y=3

x+6y=−19

Answers

-5x-7y=3
x+6y=-19
solve for x
x=-19-6y
substitution method
-5(-19-6y)-7y=3
when u solve u get y=-4
since y is -4
substitute that in
x+6(-4)=-19
x=5
so (x,y) = (5,-4)
x is 5 and y is -4

Income East and West of the Mississippi




For a random sample of households in the US, we record annual household income, whether the location is east or west of the Mississippi River, and number of children. We are interested in determining whether there is a difference in average household income between those east of the Mississippi and those west of the Mississippi.



Incorrect answer iconYour answer is incorrect.



(a) State the null and alternative hypotheses. Your answer should be an expression composed of symbols:



Let group 1 be the households east of the Mississippi River and let group 2 be the households west of the Mississippi River.



(b) What statistic(s) from the sample would we use to estimate the difference?



Let group 1 be the households east of the Mississippi River and let group 2 be the households west of the Mississippi River.

Answers

Answer:

H0: μ1 = μ2

H1: μ1 ≠ μ2 ;

xbar1 - xbar2

Step-by-step explanation:

The Null hypothesis should state that there is no difference in average household income between those located east and west of the Mississippi

H0: μ1 = μ2

H1: μ1 ≠ μ2

Statistic from the sample that would be used to estimate difference

Statistic refers to the numerical characteristic derived from the sample.

To estimate the difference in the average household income between those located east and west of the Mississippi, we take the sample mean of the two groups

Group 1, East of Mississippi = xbar 1

Group 2, West of Mississippi River = xbar 2

xbar1 - xbar2

Please help ASAP!!! Thanks

Answers

Answer:B.√13

Step-by-step explanation:

Hope this helps!

a=p2+q2

2=62+42

2≈3.60555

Sandy bought 1 1/4 pound of turkey and 1/2 pounds of cheese at the deli. Both items are on sale for $4 per pound. What is the total cost?

Answers

Sandy's $8.50 been on the deli counter.

$8.50.....................

Sergei's car was clocked in a quarter mile race at 146.67 miles per hour.


How many feet per second is this to the nearest hundredth if there are 5280 feet in one mile?


A. 29.33 feet per second

B. 35.99 feet per second

C. 215.12 feet per second

D. 733.35 feet per second

E. 860.48 feet per second

Answers

Answer:

C. 215.12 feet per second

Step-by-step explanation:

Sergei's car was clocked in a quarter mile race at 146.67 miles per hour.

How many feet per second is this to the nearest hundredth if there are 5280 feet in one mile?

From the above question

1 mile = 5280 feet

1 hour = 60 minutes

1 minutes = 60 seconds

1 hour = 60 × 60 seconds = 3600 seconds

We are to convert 146.67 miles per hour = feet per second

Hence:

146.67 miles /1 ft × 5280 feet/1 miles × 1 hr/3600 seconds

= 146.67 × 5280 feet/3600 seconds

= 774417.6 feet / 3600 seconds

= 215.116 feet per second.

Approximately = 215.12 feet per second

Option C is correct

A school band went on a trip to a music festival. The band director was admitted for free, but it cost $100 to rent a bus for the trip and $4 for each student to get into the festival. The total cost of the trip was $244. Which equation can be used to find s, the number of students that went on the trip?

Answers

Answer:

100 + 4s = 244

Step-by-step explanation:

Cost of the ticket for s students = 4s

Bus rent  + cost of ticket for 's' students  = $ 244

100 + 4s = 244

Answer:

i cant answer it either its so hard

Step-by-step explanation:

What is the y-intercept of line x = -8?

Answers

Answer:

There is no y-intercept.

Step-by-step explanation:

x = -8 has an undefined slope which means that it will never have a y-intercept unless it is x = 0.

Each marble bag sold by Henry's Marble Company contains 5 purple marbles for every 4 orange marbles. If a bag has 20 orange marbles, how many purple marbles does it contain?

Answers

Answer:

25

Step-by-step explanation:

If it's 5 for every 4 and the bag has 20, 4*5 = 20 and you'd have to do that to the 5 as well to get 5*5=25.

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