Mathematics Middle School

Refer to the circle to the right.

a. Find the circumference of the circle. use 3 as the estimate of π.

b. Find the circumference of the circle using 3.14 for π.

c. Another estimate of π is 3.14159. Find the circumference using this estimate.

d. What do you notice about the estimate used for π and the circumference of the circle?

Answer and explain how you got to your answer to get brainliest

Refer To The Circle To The Right.a. Find The Circumference Of The Circle. Use 3 As The Estimate Of .b.

Answers

Answer 1

Answer:

a. If π = 3 => C = 10 x 3 = 30

b. if π = 3.14 => C = 10 x 3.14 = 31.4

c. if π = 3.14159 => C = 10 x 3.14159 = 31.4159

d. using the whole number of π makes the calculation easier but using the π with more decimals will make the result more accurate.

Step-by-step explanation:

Diameter = 10 => radius = 10/2 = 5

Circumference: C = 2πr = 2π(5) = 10π

a. If π = 3 => C = 10 x 3 = 30

b. if π = 3.14 => C = 10 x 3.14 = 31.4

c. if π = 3.14159 => C = 10 x 3.14159 = 31.4159

d. using the whole number of π makes the calculation easier but using the π with more decimals will make the result more accurate.

Answer 2

Answer: hope this helps ♡

a. C = 3 × 10 = 30cm

b. C = 3.14 × 10 = 31.42cm

c. C = 3.14 × 10 = 31.42cm

d. The bigger the estimated value of π, the bigger the circumference. The circumference gets more accurate when you use the whole number of π.

Step-by-step explanation:

C = π ×d  (or 2r)            d =10

a.    π = 3                             C = 3 × 10 = 30cm

b.    π = 3.14                        C = 3.14 × 10 = 31.42cm

c.    π = 3.14159                   C = 3.14 × 10 = 31.42cm

d. The bigger the estimated value of π, the bigger the circumference. The circumference gets more accurate when you use the whole number of π.

Related Questions

The scale used for a model of an Orca whale is 1 in: 4
ft. If the model of the Orca is 5 inches long, how long is
the actual whale?

Answers

Answer: this is unrealistic but the way the question is written it makes me believe that the orca is 20 ft but that’s defiantly wrong so it’s either a really small whale or you add a zero at the end and are you sure you didn’t leave out any details because the question is written in a weird way

Step-by-step explanation:

Which of the following is the fourth vertex needed to create a rectangle with vertices located at (−7, 1), (−7, −6), and (7, 1)?

(−7, 6)
(−7, −1)
(7, −6)
(7, 6)

Answers

Answer:

(7, 6)

Step-by-step explanation:

easiest way to solve this -- graph the 3 given points, then missing point is obvious:  (7, 6)      It's 5 units above the point (7, 1)

HELP ME ASAP RN PLS PLS PLS PLS

Answers

Answer:

The answer you're looking for is
D) Multiply one dimension of the prism by two and keep the other dimensions the same.

Step-by-step explanation:

When multiplying a volume of a rectangular prism regularly it would be B×h or l×w×h would be 10×2×5 = [tex]100cm^{3}[/tex].

However if doubled, or multiplied by 2 our new result would be [tex]200cm^{3}[/tex]. The way to find this is by multiplying only one dimension, or side, as the rest will remain the same.

There are 3 possible equations you could do with the given information.

(10×2)×2×5, 10×(2×2)×5, or 10×2×(5×2).

All of these, individually multiply up to 200 which is also double the amount of the regular volume.

I hope this was helpful!

The answer is D. :))))))))

please help me its a big grade

Answers

Answer:

280 cubic inches

Step-by-step explanation:

4x5=20

20x14=280

volume= length•width•height
=4•5•14
= 280
volume of the gift box= 280 cubic inches

A three-column table is given.


Part 10| B | D
Part 12| 30| 60
Whole A| C | 110


What is the value of C in the table?
40
42
50
55

Answers

Answer:

its x

Step-by-step explanation:

Please help quick! I will give coins and brainliest!

Answers

Answer:

Step-by-step explanation:

2,2

They interact between the both

the slope is 2,2 granted

A school is designing two parking lots. The design for the first parking lot is shown in the first attachment.

The second parking lot is being designed so that its perimeter is 3/4 of the perimeter of the first parking lot. The perimeter of the second parking lot can be represented by the expression shown in the second attachment.

Which other expression also represents the perimeter of the second parking lot?
A. 15/2 + 33/4k
B. 15/2 + 11k
C. 9 + 9k
D. 10 + 11k

Answers

Answer:

Step-by-step explanation:

D.10 + 11k

−3⋅f(−8)+7⋅g(2)
Help me!

Answers

Answer:

The answer is -22

-22 I didn’t copy the first answer at all.

i need help with this in 10 min

Answers

Answer: the golden one is the correct one

Step-by-step explanation:

in order for Michael to know how many more points he needs to equal with Janet he need to add how many points she has (200 + 400) then subject how much he has (250) and get p
(200 + 400) - 250 = p

you need to do 200 + 400 first, hence the parentheses.

I hope you got it is so good job but if not I’m sorry I had one problem I didn’t know and it would let me figure it out so ya bye

40 POINTS!!!!!!!!!!!!!!!!!!! IF YOU ANSWER ILL MARK YOU BRAINLIEST AND TRY ANSWERING ONE OF YOUR QUESTIONS BTW I need this done in 10 mins please

(ANSWER ALL IMAGES PLS AND THANK U.

Answers

Answer:

Step-by-step explanation:

How do you know if a image is reflected over the y-axis? Easy, You know a image is reflected over the y-axis because if the whole image is in the same spot and is entirely over the y-axis then it was reflected over the y-axis, same thing for the x-axis :) hope i kind of helped bro. The other ones im not to sure on tho bro sorry.

999 Flies are flying. A frog comes and eats 4 flies. If the frog keeps doing this for 4 years,how many flies will he have ate?

Answers

It depends, what rate is the frog eating the flies?

Will there still be that exact amount of flies flying all the time?

Assuming he eats a fly every second, and there are always 4 more flies after he eats 4 of them, he will eat 504,576,000 flies

SHOW WORK FOR BOTH QUESTIONS

Answers

Answer:

Step-by-step explanation:

QUESTION 1

The value of the x for the given square such that its perimeter is 28 meters will be 3.7 meters.

What is a square?

A square is a geometrical figure in which we have four sides each side must be equal and the angle between two adjacent sides must be 90 degrees.

Area of square = Side²

The perimeter of the square = 4 × side

As per the given square perimeter.

4(x + 3.3) = 28

x + 3.3 = 7

x = 3.7 meters.

Hence"The value of the x for the given square such that its perimeter is 28 meters will be 3.7 meters".

QUESTION 2.

The amount of money Tony spent in buying a pack of notebooks is $4.89.

Given the following data:

Cost of calculator = $45.87.

Quantity of notebooks = 3 packs.

Quantity of calculator = 1.

Total cost = $60.54 .

To determine the amount of money Tony spent in buying a pack of notebooks:

How to solve a word problem.

In this exercise, you're required to determine the cost of a pack of notebooks. Thus, we would translate the word problem into an algebraic equation.

(View screenshot)

n = $4.89.

Julia the teacher has 7.03 hours to teach her class. She has a red folder and a blue folder. In the red folder is a lesson about Egypt that will take 5 hours. In the blue folder is a lesson about coding that will take 3.0 hours. Which lesson should she choose?

Answers

she should chose the Egypt lesson because she will have more time to teach the other one

HELP ASAP
Anthony has a sink that is shaped like a half-sphere. The sink has a volume of 4500/3 πin3. One day, his sink clogged. He has to use one of two cylindrical cups to scoop the water out of the sink. The sink is completely full when Anthony begins scooping.
(a) One cup has a diameter of 6 in. and a height of 14 in. How many cups of water must Anthony scoop out of the sink with this cup to empty it? Round the number of scoops to the nearest whole number.
(b) One cup has a diameter of 10 in. and a height of 12 in. How many cups of water must he scoop out of the sink with this cup to empty it? Round the number of scoops to the nearest whole number.

Answers

Answer:

Sipho has a R7 500 that he wants to invest over 7 years.Two banking institutions offers him the following options.

There are five different colored cards in a hat (red, blue, green, yellow, and black). A card is randomly drawn and not replaced. Then a second card is drawn. What is the probability that the first card will be red and the second card will be blue?

4%
25%
5%
20%

Answers

Answer:

The probability will be 5%

Step-by-step explanation:
The probability that you pulled red first was 1/5, or 20%
And the probability you pulled blue second was 1/4, or 25%.
Now we have to multiply the fractions.
1/5x1/4=1/20. 1/20 is 5%. There is a 5% probability you pulled red then blue.

There are originally five different colored cars but then when you take out what there’s only four and four is an even number that you can make 25 four different times to get to 100 so therefore it would be 25%

Mr. Kelsey just opened a T‑shirt shop and is determining what to charge for bundles of shirts. Which table of prices represents a proportional relationship?

Answers

Answer: B is correct

Step-by-step explanation:

Missy’s sister,Jolly the Carpenter has 10 orders that she needs to finish in 24 hours. She has to make a table which will take her 1.5 hours,a rocking horse which will take 45 mins,a rocking chair which will take 50 mins,2 chairs which will take 54 minutes each,a duck call which will take 30 mins,a wooden car toy which will take 45 mins ,a huge boat which will take 5 hours,and a tiny toy table which will take 15 minutes. How many minutes will she have left over ?

Answers

Let's convert all the times to minutes for easier calculations.

1.5 hours = 90 minutes

45 minutes = 45 minutes

50 minutes = 50 minutes

54 minutes = 54 minutes

30 minutes = 30 minutes

45 minutes = 45 minutes

5 hours = 5 x 60 = 300 minutes

15 minutes = 15 minutes

To find the total time Jolly will spend on all the orders, we add up all the times:

90 + 45 + 50 + 54 + 54 + 30 + 45 + 300 + 15 = 683 minutes

Jolly has 24 hours = 24 x 60 = 1440 minutes to complete all the orders. To find out how many minutes she will have left over, we subtract the total time she will spend on the orders from the total time available:

1440 - 683 = 757 minutes

Therefore, Jolly will have 757 minutes left over after completing all 10 orders.

Amanda lives at (3,-4) on a map. If she walks to the school at (-3, 4), how many
blocks has she walked?
Justify your answer.

Answers

Answer: She has walked 14 blocks.

Step-by-step explanation: Just look at a coordinate grid and calculate the distance.

1.9x10^3 x 3.1x10^3 in scientific notation

Answers

Answer: 3.871 x 10-10

Step-by-step explanation: Multiplication Steps

(4.9 x 10-6) × (7.9 x 10-5)

Group like terms:

= (4.9 x 7.9) x (10-6 x 10-5)

Multiply coefficients and add exponents:

= (38.71) x (10-11)

Convert to proper SN:

= 3.871 x 10-10

(1.9x3.1)x(10^3x10^3)
=5.89x10^6

Find the perimeter and area of each triangle below

Answers

Answer:

the right one you can tell because the shap

The first one is 14 x 11 = 154 divided by 2 which is 77 +18 which is 95

The second one is 150+ 187.5 = 337.5

The charity gala costs a flat fee of $4, plus an additional $11 per attendee. Is the total cost directly proportional to the number of attendees?

Answers

No, the total cost is not directly proportional to the number of attendees because there is a flat fee of $4 that does not depend on the number of attendees. If the total cost were directly proportional to the number of attendees, then the cost per attendee would be constant regardless of the number of attendees, but in this case, the cost per attendee decreases as the number of attendees increases due to the fixed flat fee.

No, the total cost is not proportional to the number of attendees.

50 POINTS! Please solve ASAP I will give brainliest to best answer

I will delete any incorrect or fake answers

Answers

Answer:

Uncle = 4(y+3)
Or
4y+12

Step-by-step explanation:

you = y
sister = y+3
Uncle = 4(y+3)

Answer:

y+3*4=12+y

using * as multiply

Step-by-step explanation:

Two same-sized triangular prisms are attached to a rectangular prism as shown below. If a = 20 cm, b = cm, c = cm, d = 4 cm, and e = 8 cm, what is the surface area of the figure?

Answers

Answer:

Step-by-step explanation:

Answer: a) 1,208 square centimeters

The surface area would be the sum of the different areas separated in the figure.

The area of the front and back faces of the rectangular prism:

The area of the top and the base of the rectangular prism:

The area of the front and back faces of both triangular prisms:

The area of the side faces of both triangular prisms:

The area of the bases of both triangular prisms:

Finally, the surface area of the whole figure:

What is the elevation of 7 feet below sea level?

Answers

Answer:

-7

Step-by-step explanation:

it would be -7 because the more you go under the number becomes a negative but if you go above sea level the number becomes a positive!

Answer:7 feet below sea level is a lower elevation than 4 1/2 feet above sea level

Step-by-step explanation:

A movie theater sold 1 child ticket. The other 49 tickets it sold were adult tickets. What is the ratio of the number of child tickets to the number of adult tickets?

Answers

Answer:

1:49

Step-by-step explanation:

you put the child ticket first then the adult tickets

One child ticket over 49 adult tickets

30 points to whoever gets it right <3 ( answer asap please )

∠A and ∠B are complementary angles. If m∠A = (7x + 25)∘ and m∠B = ( x + 9)∘ , then find the measure of ∠A

Answers

Answer:

x = 7

Angle A = 74

Angle B = 16

Proofs attached to answer

Step-by-step explanation:

Proofs attached to answer

Answer:

<A = 74

Step-by-step explanation:

We know that being complementary angles refer to..Sum of two angles = 90°.

So,

<A + <B = 90

i.e. (7x + 25) + (x+9) = 90

or, 8x + 34 = 90

or, 8x = 90-34

or, x = 56/8

or, x = 7

Again,

<A = 7x + 25

or, <A = 7*7 + 25

or, <A = 74

•°• <A = 74..... Is your ANS

Calculate the probability of the event.

Answers

Answer:

well, the other colors on the wheel are less because people prefered green

Step-by-step explanation:

Step-by-step explanation:

So its hard to calculate actual probability without any numbers. But seeing that there are a total of 6 colors on the wheel, and that green is the largest (by a lot since its almost half the wheel) the probability of landing green is very high.

And that's all you can say really...black will be lowest, and yellow seems to be the next highest. In comparison to green though, probability of the other colors will be low.

Carnegie pages module 3 page 330- questions one and two

Answers

Answer:

Step-by-step explanation:

Sure, here are the questions and solutions for module 3 page 330 in Carnegie textbook:

If the cost of goods sold is 65% of sales and sales are $720,000, what is the cost of goods sold?

To find the cost of goods sold, we need to multiply the sales by the percentage of the cost of goods sold, expressed as a decimal:

Cost of goods sold = 0.65 × $720,000

Cost of goods sold = $468,000

Therefore, the cost of goods sold is $468,000.

At a cost of $110 each, how many calculators can be purchased with a budget of $8,800?

To find the number of calculators that can be purchased, we need to divide the budget by the cost per calculator:

Number of calculators = $8,800 ÷ $110

Number of calculators = 80

Therefore, 80 calculators can be purchased with a budget of $8,800.

a is the cost of adult tickets.

s is the cost of students tickets.

The cost of each type of ticket is $10.

The solution of an equation differ from the solution of a linear system of equations because because it only satisfies a single equation.

How to determine the number of each type of tickets sold?

In order to write a system of linear equations to describe this situation, we would assign variables to the cost of adult tickets sold and cost of student tickets sold, and then translate the word problem into an algebraic equation as follows:

Let the variable a represent the cost of adult tickets sold.Let the variable s represent the cost of students tickets sold.

The total amount of money that Ashley charged the first person is represented by this linear equation:

2a + 2s = 40

For the second person, we have:

a + 3s = 40

By solving the system of linear equations simultaneously, we have:

2(40 - 3s) + 2s = 40

80 - 6s + 2s = 40

4s = 40

s = $10.

For the value of adult ticket (a), we have:

a = 40 - 3s = 40 - 3(10) = $10.

For the third person, we have:

Cost = 3a + 5s

Cost = 3(10) + 5(10) = $80.

Read more on solution and linear equation here: https://brainly.com/question/25858757

#SPJ1

PLEASE HURRY!!
Factor 9 y² - 12 y + 4.

A). (3y - 2) ²
B). (3y - 4)(y + 1)
C). (3y - 2)(3y + 2)

Answers

Answer: A. (3y-2) ^2

Step-by-step explanation:

A x C = 36y^2

B = -12y

What can you multiply to get 36y^2, but add to get -12?

-6 and -6, -6 x -6 = 36, -6 + -6 = -12

9y^2 - 6x - 6x + 4

Factor

(3y-2)(3y-2) = (3y-2)^2

Answer:

(3y - 2) ²

Step-by-step explanation:

Factor using the perfect square rule.

x+2x+6+8 > x+3+5
2x+3-5+3x <_ 3-x+10+3
<_ = less than or equal to

Answers

Question:x+2x+6+8 > x+3+5

2x+3-5+3x <_ 3-x+10+3

<_ = less than or equal to

answe:equal to

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