Mathematics Middle School

What is the circumference of the circle with a radius of 4.5 meters? Approximate using π = 3.14.

14.13 meters
28.26 meters
56.52 meters
63.59 meters

Answers

Answer 1

Answer: the circumference of this circle is : 28.26 meters.

Step-by-step explanation:

The formula for circumference is = 2*pi*radius

Here,

pi=3.14

radius=4.5meters

hence,

using the formula; 2*pi*r

circumference =2 * 3.14 * 4.5m

circumference = 28.26 meters.

Answer 2

Answer:

The Circumference of circle os 28.26 meters.

Step-by-step explanation:

Given : Radius of circle is 4.5 meter

To Find : Circumference of circle

Using Formula :

[tex]\leadsto\sf{Circumference_{(Circle)} = 2 \pi r}[/tex]

Solution :

Finding the Circumference of circle by substituting all the given values in the formula :

[tex]\leadsto\sf{Circumference_{(Circle)} = 2 \pi r}[/tex]

[tex]\leadsto\sf{Circumference_{(Circle)} = 2 \times \pi \times r}[/tex]

[tex]\sf{\leadsto{Circumference_{(Circle)} = 2 \times 3.14\times 4.5}}[/tex]

[tex]\sf{\leadsto{Circumference_{(Circle)} = 6.28\times 4.5}}[/tex]

[tex]\sf{\leadsto{Circumference_{(Circle)} = 28.28 \: meteres}}[/tex]

Hence, the Circumference of circle is 28.26 meters.

————————————————

Related Questions

Please Help me i really need to pass this!

Answers

Answer: I must say it's (0,3)

Step-by-step explanation: The two lines meet at (0,3) so it's (0,3).

Hope it helps! :D

Please help i'm so confused

Answers

Answer:

2/3

Step-by-step explanation:

because 1 1/2 x 2/3 = 2 1/4

Answer:

1 1/2 = 3/2

2 1/4 = 9/4

3/2 divided by 9/4 = 3/2 multiplied by 4/9 = 2/3

EXPLANATION : when we have 2 fractions and we have to divide them , we have to reverse the fraction that we are dividing by and multiply it. sometimes we can simplify the fractions , sometimes we can't. for example , with 3/2 multiplied by 4/9 we simplified 3 and 9 and the 2 and the 4 which left us with 1/1 ( 1 ) multiplied by 2/3 , which gave us the answer 2/3 .

Hope I helped!

graph f(x)=|x+1|+3 then find the domain and range

mainly looking at how id find the coordinates!

Answers

Domain is all real numbers. Range is

Step-by-step explanation:

The function  is a transformation of the parent function  by moving the function up by 3 units.

So, the graph of the function is shown below.

From the graph, it is clear that the  values has no limitation and hence can take any real values. Domain is the set of all possible  values.

So, domain is the set of all real numbers.

Range is the set of all possible values for  for the given domain.

From the graph, the minimum value of  is at the point (. So, the minimum value of y is 3. The  value then goes on increasing towards infinity.

Therefore, range is a real number greater than or equal to 3.

So, range is  or  

Question 21: A box covers an area of 8 3/4 in. squared when resting on its base. The volume of the box is 74 3/8 in. cubed. Can you find the surface area of the box? Explain.

Answers

My dad had help my sister with this one. The answer is A

Five balls, A, B, C, D, and E, weigh 30g, 50g, 50g, 50g, and 80g each. Which ball weighs 30g?

Answers

Answer:

A weighs 30 because it is always on the higher side

PLS HELP ASAP WILL MARK BRAINLIEST
Triangle ABC ~ triangle DEF. Use the image to answer the question.

Answers

Answer:

3.3/11 = DF/7.6

DF = (3.3 × 7.6)/11 = 2.28

A new physical therapy is being tested in an experimental setting to see if the new methods reduce the recovery time for patients who recently underwent surgery for a torn ACL, a ligament in your knee. To do this, the researchers in the study first performed intake on participants by observing their Body Mass Index (BMI) and had them take a survey to describe their diet and their exercise habits.

Then, the participants were split into three groups: the first group received no physical therapy, the second group received traditional physical therapy, and the third group received the new experimental physical therapy.

The group which receives no physical therapy would best be described as which of the following?

Explanatory Variable
Response Group
Control Group
Experimental Unit

Answers

Answer: The group which receives no physical therapy would best be described as the Control Group.

In an experimental study, the control group is a group of participants who do not receive the treatment being tested. They are used as a basis for comparison to evaluate the effectiveness of the treatment. In this case, the researchers are testing whether the new physical therapy reduces the recovery time for patients who underwent surgery for a torn ACL. The control group allows the researchers to compare the recovery time of patients who received no physical therapy to those who received either traditional or experimental physical therapy.

Step-by-step explanation:

Jaden made a rectangular sign that is 1.4 meters long and 1.2 meters wide to post on the wall of his store. How many square meters of wall does the sign cover? The answer is 1.68, but to solve the problem, you need to find 1.4 x 1.2(which it is 1.68). Estimate the area of wall that the sign will cover. Explain your thinking please.

Answers

To estimate the area of the wall that the sign will cover, we can use some rounding techniques to simplify the calculation.

First, we can round the dimensions of the sign to the nearest whole number to make the multiplication easier. Rounding 1.4 to 1 and 1.2 to 1, we can estimate that the sign covers approximately 1 square meter of wall.

This estimation assumes that the sign is placed directly on the wall with no gaps or overlaps. In reality, the actual area of wall covered by the sign may be slightly larger or smaller depending on the installation method and any spacing between the sign and the wall.

It's important to note that while estimation can be useful for getting a rough idea of the answer, it's not always accurate and should not be relied upon for precise calculations. In this case, using the actual dimensions of the sign to find the area of the wall covered (1.4 x 1.2 = 1.68 square meters) gives a more accurate result.

Data was collected on the amount of time that a random sample of 8 students spent studying for a test and the grades they earned on the test. A scatter plot and line of fit were created for the data.



Determine the equation of the line of fit.

y = 5x + 60
y = 5x + 70
y = 10x + 60
y = 10x + 70

Answers

In slope-intercept form (y = mx + b), m represents the slope (rise/run) and b represents the y-intercept.

Let's look at the graph and pick two points, (2, 70) and (4, 80) and use slope formula, y2 - y1 / x2 - x1
80 - 70 / 4 - 2
10 / 2
5
The slope of this line is 5.

To find the y-intercept, we look where the line crosses through the y-axis or the vertical line.
The y-intercept is (0, 60) or 60

If we plug these numbers into slope-intercept form, we get y = 5x + 60

Your answer is y = 5x + 60

In the US, 42% of people have type A blood, 10% have type B, 4% have type AB, and 44% have type O. People with type Band type AB blood can receive type B blood. What percentage of people can receive transfusions of type B blood?

Answers

Answer: 14%

Step-by-step explanation:

10+4=14

According to the information given, people with type B and AB blood can receive transfusions of type B blood.

So, the percentage of people who can receive transfusions of type B blood is the sum of the percentage of people with type B and AB blood, which is:

10% + 4% = 14%

Therefore, 14% of people can receive transfusions of type B blood.

Can someone help me and answer this

Answers

If d represents the number of days, you can substitute 1 for d because you are trying to find how many minutes he practices per day.

The new equation would be m=60(1)

Then you just solve for m to find how many minutes and the answer is 60.

Bo practices 60 minutes per day.

Use the image to determine the direction and angle of rotation.



270° clockwise rotation
270° counterclockwise rotation
90° clockwise rotation
180° clockwise rotation

Answers

90° clockwise rotation
90 degrees clockwise :)

Please help
I need help on these two

Answers

Answer:surface area of pyramid is 118.80

And the volume of the cube is 1000

Step-by-step explanation:explain on picture

Answer:169.92 cm^2

Step-by-step explanation:

The base is 7.2 x 7.2 (This equals 51.84)

The area of one triangle is 29.52

There are 4 triangles with the same side lengths so you multiply 29.52 x 4.

This would equal 188.08.

Then you add everything together.

This equals 169.92 cm^2.

Answer:1,000 m^3

The formula for volume is hlw.

One of the side lengths of the cube is 10.

If the height, length, and width are ten, then you multiply them all together.

This would give you 1,000.

Other Questions
mercury has the widest variation in surface temperatures between night and day of any planet in the solar system. the formally nominates judges for federal district courts. after nomination, the candidate must first be considered by the committee and confirmed by a full vote of the . the chordae tendineae attach to the lower surface of cusps of the ______ valve and prevent the valve from flipping into the atrium when the right ventricle is contracting. In this course, you'll read a lot about how economies work. Can you predict what kinds of topics the course will cover? Carmaker produces small cars in a perfectly competitive market using labour (L) and capital (K). Carmaker's production function is given by f(L,K) = min (0.05L, K112}, { where Q is the number of cars produced. (a) [2 marks] Starting from L>0, K>0, suppose you double the amount of L and K. Is it possible for output (q) to more than double (i.e., increase from q to Aq where A > 2)? " (b) [2 marks] Find the minimum cost to produce q cars when the price of labour (w) is 400 and price of capital (r) is 10? (Hint: the answer would involve q.] why did the european renaissance have a more overtly religious cast to it than did the italian renaissance? which of the statements below about the fed is not true? the fed is controlled by the u.s. government. the fed can loan money to private banks as lender of last resort. regional federal reserve banks act as central banks for their areas. federal reserve banks control the money supply. If the speed of a wave is 400 cm/s with a frequency of 80 Hz, what is the wavelength for this wave?32,000 cm32,000 m5 cm5m an organization that has identified an opportunity for long-term outsourcing can expect question 24 options: better communication. lowered administrative costs. improved utilization of resources. all of the above. Sam makes tote bags for a school fundraiser. The fixed costs for making the bags is $30. The cost of the materials for each bag is $8.50. Sam can spend less than a total of $200 on the tote bags. Write an inequality that can be used to determine b , the number of tote bags that can be made. a swiss bank converted 1 million swiss francs to euros to make a euro loan to a customer when the exchange rate was 1.85 francs per euro. the borrower agreed to repay the principal plus 3.75 percent interest in one year. the borrower repaid euros at loan maturity and when the loan was repaid the exchange rate was 1.98 francs per euro. what was the bank's franc rate of return? psychosis refers to knowing the difference between: group of answer choices right and wrong conscious and unconscious desires. what is real and what is not real. pleasure and pain. learning is best defined as a relatively permanent change in behavior. what causes this change? group of answer choices innate knowledge the observation of others only the connection between two stimuli in the environment only experience what led to the great textile strike of 1934 that caused the chiquola mill incident in honea path, s.c.? responses riots led to death during a labor union movement in the north riots led to death during a labor union movement in the north poor working conditions and factory owners not following the national industrial recovery act poor working conditions and factory owners not following the national industrial recovery act racial riots over factory owners willingness to hire african-american workers racial riots over factory owners unwillingness to hire african-american workers the use of child labor continued in s.c. despite the national recovery act 30. A hedge fund charges 2 plus 15%. Investors want a return after fees of 20%. How much does the hedge fund have to earn, before fees, to provide investors with this return? Assume that the incentive fee is paid on the net return after management fees have been subtracted. A 27% B. 25.5% C. 21.6% D. 20% What are the PEL levels for Sb51 we must perform dilutions of absorbance values above 1.00 since not enough light is getting through the sample as it is heavily concentrated with solutes question 7 options: true false Jonelle selects a student loan repayment plan with a 20-year term. One downside is. a. She won't receive any grace period with this plan. b. Her monthly payments will start out quite high and won't get lower until approximately year 10. c. She won't be able to open additional lines of credit until that debt is completely repaid. d. She will pay more in interest than if she had used the Standard repayment plan what is the maximum amount of heat in joules that 23 grams of water at 95oc can lose before freezing completely? During the early nineteenth century, liberals supported nationalism because they associated it with constitutions, the celebration of the achievements and political awakening of the common people, andChoose matching definitionpolitical socializationclass struggleconciousnesspolitical transformation