Mathematics Middle School

A college campus has a lawn shaped like a circle with a radius, r, of 60 meters. Which is the best approximation of the area, A, of the circular lawn? (Use A=πr2; π is approximately 3.14.)

Answers:

A. 180 square meters
B. 360 square meters
C. 2,800 square meters
D. 11,300 square meters

Answers

Answer 1
I’m guessing it will be 2,800
Answer 2
Answer: ( C ) 2,800

Related Questions

i literally cant even do 5th grade math pls help

i literally cant even do 5th grade math pls help

Answers

insurance money/sum of all expenses * 100 %

= 90/ (650+150+130+90+80) * 100

90/1100 *100

= 90/11 * 1 (i cancelled the zeros)

= 8.18181818%

final answer = he spent 8.18 bar % of his budget on car insurance

hope this helps

If u added it together then u will get ur answer

find the axis of symmetry of this parabola y=-x^2-2x-5 write your answer as an equation

Answers

Answer:

axis of symmetry: x=-1

Step-by-step explanation:

Liz's age is two-thirds of Debbie's age. Debbie's age is half of Freya's age. what is the ratio of Liz's age to Freya's age?

Answers

Answer:

Let's start by using variables to represent the ages of the three people:

Let L be Liz's age.

Let D be Debbie's age.

Let F be Freya's age.

From the problem, we know that Liz's age is two-thirds of Debbie's age, so we can write:

L = (2/3)D

We also know that Debbie's age is half of Freya's age, so we can write:

D = (1/2)F

To find the ratio of Liz's age to Freya's age, we need to express Liz's age and Freya's age in terms of a common variable. Since we have an equation relating Debbie's age to Freya's age, we can use that as the common variable. From the equation D = (1/2)F, we can solve for F in terms of D:

F = 2D

Now we can substitute this expression for F into the equation for Liz's age:

L = (2/3)D = (2/3)(1/2)F = (1/3)F

So Liz's age is one-third of Freya's age. The ratio of Liz's age to Freya's age is therefore 1:3.

The ratio of Liz’s age to Freya’s is 1:3

oof help pleaseeeeeeeeee

oof help pleaseeeeeeeeee

Answers

Answer: no, marget will be a penny short

Step-by-step explanation:

i just solved it in my notebook since she only has 8 dollars she would need an extra penny to share among two friends

poor marget

yes because it would cost $6. 27 cents out of 8                                                       dollars

12.426

                                     

12.400

12.330

12.326

Step-by-step explanation:

To order desimals you need to line each of them up and if the numbers have 3 numbers behind the desimal and the number is like 12.4 with only 1 number behind the desimal you would add 0ś as place holders so it would be 12.400 so you would just go from there 426 is gratter than 400 and 400 is greater than 330 and 330 is greeter than 326.

PLEASE MAKE ME BRAINLIST    

Please answer quickly!

Please answer quickly!

Answers

160 because you add them all up together

Use the diagram below to determine the height of the flagpole
Height of flagpole =

Scale factor from stick to flagpole=

Scale factor from flagpole to stick =

Please Label!!!!

Use the diagram below to determine the height of the flagpoleHeight of flagpole =Scale factor from stick

Answers

Answer:

the flagpole is 12 ft  

Step-by-step explanation:

2.5 ft / 4 ft = 7.5 ft / x ft

2.5x = 30

2.5x/2.5 = 30/2.5

x = 12 ft

Simplify: 2/5y−4+7−9/10y

Answers

It’s a nightmare question

Answer:

-1/2y + 3

Step-by-step explanation:

2/5y - 4 + 7 - 9/10y

= (2/5y - 9/10y) + (-4 + 7)

= (2/5 - 9/10) y + 3

= (4/10 - 9/10) y + 3

= -5/10y + 3

= -1/2y + 3

help plz I will give you brainiest if its correct :)

help plz I will give you brainiest if its correct :)

Answers

Answer:

The first one

Step-by-step explanation:

it is a, the first one

Giovanni buys a sweater at a store. The normal price is $30 but the sweater is on sale for 25% off.

a) How much in dollars will Giovanni save from the sale?

b) What is the sale price of the sweater?

c) The next week, Giovanni goes back to the same store and sees the same sweater. Now it’s on sale for $18. What is the percent decrease from the original $30 price to the new $18 price?

Giovanni buys a sweater at a store. The normal price is $30 but the sweater is on sale for 25% off.a)

Answers

Answer:

Step-by-step explanation:

a. 7.50

b. 22.50

c. 40%

A.) $7.5
B.) $22.5
C.) 60% decrease

Evaulate each expression when n = 2.3

N + 8n2 - 17=

Answers

Answer: 27.62

Step-by-step explanation:

plug in 2.3 wherever 'n' is

I'm assuming that the '2' in 8n2 is an exponent

2.3 + 8(2.3)² - 17 =

Using PEMDAS

start out with exponent since there isn't any parenthesis  

(2.3)² = 5.29

2.3 + 8(5.29) - 17

move on to multiplication

8(5.29) = 42.32

2.3 + 42.32 - 17

with addition and subtraction, you do whichever comes first and since this equation starts with addition we'll start there

2.3 + 42.32 = 44.62

then the subtraction

44.62 - 17 = 27.62

Answer:

Step-by-step explanation:

The answer is 27.62

∴∵∴∵ What is the value of the expression 9 − \((1/2)^{4}\) ⋅ 48? ∵∴∵∴

Answers

Answer:

The value of the given expression is 6.

Step-by-step explanation:

raise the 1/2 to the 4th power
9 - 1/16 • 48
multiply 1/16 by 48
9 - 3
subtract by 3
6

PEMDAS

Either Table A or Table B shows a proportional relationship.



Plot all the points from the table that shows a proportional relationship.

Table A

x 1 2 3 4
y 2 4 6 8


Table B

x 2 4 6 8
y 4 6 8 10

Answers

Answer:

TABLE A......:...............

Answer:

This graph shows all the points plotted from Table A, which shows a proportional relationship.

Either Table A or Table B shows a proportional relationship.Plot all the points from the table that shows

sorry I'm spamming questions

sorry I'm spamming questions

Answers

It will reach two spaces.

Vas happenin!

So the correct answer is B - 2 spaces

Because it’s going down by 2 units


Hope this helps you out


*smiles*

-Zayn Malik

The expression 9.00x+4.50y represents the total amount of money Harriet earns at her two jobs, where x represents the number of hours worked at job X and y represents the number of hours worked at job Y. Which shows an equivalent expression to the given expression and correctly describes the situation?

4.50(2x+y), which shows that Harriet earns twice as much per hour at job X than job Y.

4.50(2x+y), which shows that Harriet earns 4.50 times as much per hour at job X than job Y.

13.50xy, which shows that Harriet earns $13.50 each hour she works.

13.50xy, which shows that Harriet earns $13.50 every two hours she works.

Answers

The equivalent expression that correctly describes the situation is:

13.50xy, which shows that Harriet earns $13.50 for each hour she works.

This expression represents the total amount of money Harriet earns at both jobs, where x represents the number of hours worked at job X and y represents the number of hours worked at job Y. The coefficient of xy, which is 13.50, represents the amount of money Harriet earns per hour, regardless of which job she is working. Therefore, this expression accurately reflects the situation described

Translate the sentence into an equation. Nine times the sum of a number and 6 equals 8. Use the variable w for the unknown number.

Answers

Answer: 9 ( w + 6 )= 8

Step-by-step explanation:

"the sum of" usually indicates parentheses, I hope I helped!

Answer: 9(x+6)=8

Step-by-step explanation: The statement wants you to multiply 9 by the sum of a number and 6, which is equal to 8. The unknown number is going to be x, and we know that sum means the answer to an addition problem which means that x+6 will be multiplied by nine as the statement wants you to do. The statement also tells us that nine times the sum of a number and 6 is equal to 8. We have the first part of the problem solved all we need to do is set it equal to 8 which gives us the answer 9(x+6) = 8

mrs. jacobsen is a music teacher. she wants to order toy instruments online to give as prizes to her students. the table below shows the prizes.

25 items 50 items 80 items
whistles $21.25 $36.00 $60.00
Kazoos $10.00 $18.50 $27.20

Answers

Answer:  $0.13

Step-by-step explanation:

Answer:

0.40

Step-by-step explanation:

Find the volume of this object, use 3 for pi.

Question below^^

Find the volume of this object, use 3 for pi. Question below^^

Answers

Answer:

423 cm cubed

Step-by-step explanation:

9*3*14 = 378 (cylinder volume)

5/3*9*3 = 45 (cone volume)

The answe is 423 cubed hope this helped

PLEASE HELP NEED THE ANSWER ASAP
ILL GIVE 100 POINTS AND BRAINLIEST

PLEASE HELP NEED THE ANSWER ASAP ILL GIVE 100 POINTS AND BRAINLIEST

Answers

Answer:

∠3=60°

Step-by-step explanation:

IS THIS YOUR i-Ready DIAGNOSTIC!!!

55+5=60

∠1=∠3 because they are across from each other

if ∠1=60, so does ∠3

Answer: 60

Step-by-step explanation:

When the line y rotated clockwise 5° which means right shift of the line y to the 5° makes the ∠1  60°      

∠1 =∠3 ( Vertically opposite angles)

∠3= 60°

What is 1+1. I’m really wondering of what your thoughts will be on this one.

Answers

Answer: Depending on the situation, 2 or 11

Step-by-step explanation:

1 + 1 = 2

1+1 = 11

Answer:

Step-by-step explanation: So you take 1 and add it the other 1 and it equals 2

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.


Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside


Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

How many different variables are in the expression 8r-1+9r-2(q-1)+11 ? Name each variable

Answers

Answer: there is 2 different variables r and q

Step-by-step explanation:

Can somebody help me on this question

Can somebody help me on this question

Answers

Step-by-step explanation:

82.....-82

-5.2.....5.2

7/9......-7/9

-y.......Y

4x.......-4x

0.......9/7

Answer:

82.....-82

-5.2.....5.2

7/9......-7/9

-y.......Y

4x.......-4x

0.......9/7

ez

Step-by-step explanation:

If one cubic foot contains about 7.5 gallons, how many gallons of water are in the pool?

Answers

Answer:

Step-by-step explanation:

U should to length x width x height to find your answer

length x width x height

At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.


Ketchup Relish Chili
54 36 60


Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042

Answers

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Answer:

By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042

Step-by-step explanation:

can someone please help me

can someone please help me

Answers

Answer: 60

Step-by-step explanation: all you have to do is add the sides and the two faces together, then add those results together. Boom. You have the answer.

I think the answer is 60

Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?

Answers

To determine whether Keira's statement is correct, we need to analyze the information provided.

According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.

If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.

However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.

Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
in order to know if Keira has two tickets left, we need to know the first number of tickets without that number there is no way to find the remainder

HELP!! URGENT!! IT IS DUE TOMORROW, PLEASE HELP ME!

HELP!! URGENT!! IT IS DUE TOMORROW, PLEASE HELP ME!

Answers

Answer:

26

Step-by-step explanation:

.......

Please help my sister finish this

Please help my sister finish this

Answers

answer :

it would probably be 2 factors .
8x = 1 factor + is another and 5 is a third.
3.

Solve the equations.

Solve the equations.

Answers

Answer:

D=1

S=4.1

C=-140

Step-by-step explanation:

Inverse operations

d= 1
S=4.1
c=141


hope this helps you out

Need help with these

Need help with these

Answers

Answer:

3. 8.5 dollars per hour. y=8.5x where y is cost and x is the number of hours.

4. 3.62 inches per minute

Answer:

8.50 dollars per hour. y=8.5x

y = the cost

and x = the number of hours

3.62 inches per minute

use your brain :)

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