Mathematics Middle School

Chloe works at a lab with a huge circular particle accelerator. It has a radius of 3 kilometers. What is the accelerator's circumference?

Use 3.14 for ​.

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Answer 1

Answer:

18.85

Explanation:

Answer 2
18.85.....................

Related Questions

please help me on this review of inequalities assignment!

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Answer:

3:      x_> 16     4: x _>100 5: x>3    6:  x_< 200  

Step-by-step explanation:

I did this sheet.

Simplify the expressions by combining like terms

-4f - 9 - f + 15

Answers

Answer:

-5f    +6

Step-by-step explanation:

-4f - 9 - f + 15

Combine like terms

-4f -f    -9 +15

-5f    +6

Answer:

-5f+6

Step-by-step explanation:

as we add like terms -4f+(-f)=-5f

-9+15=6

HEY YOU GUYSSS. I need help asap, I'm doing an extra credit assignment for math and I need to know the formula for any of these questions. THANKS

Answers

Answer:

1) S

2) M

3) I

4) E

5) A

6) L

thats what i got but i dont know y it isnt a proper word.

Answer:

1) S

2) M

3) I

4) E

5) A

6) L

Step-by-step explanation:

I NEED THIS ASAP I'LL GIVE BRAINLIEST

Marina simplified the expression 4x + 5(–4x – b) – (x – 2) to be –17x – 8.

What was the value of b?


A. -6

B. -2

C. 2

D. 10

Answers

Answer:

C.)

Step-by-step explanation:

4x -20x -5b -x +2=-17x -8

-17x-5b+2=- 17x-8

+17x +17x

-5b +2= -8

-2 -2

-5b = -10

b= 2

hope this helps.

The answer is : C. 2

3.14 x 60^2 x 30
what is the answer rounded to the nearest tenth?

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I got 11,304. I don't know if that's right or if it's wrong. Let me check again

answer this pls

equation 9(2j + 5j).

use mathematical properties to create two expressions that are equivalent to the expression you created

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the solution is 9(7j)
The answer is 63j

9(2j+5j)=9X7j=63j

The distance that a object covered in time was measured and recorded in the table below. What equation describes the motion?
y = 1.5x + 2.5
y = -1.5x
y = -1.5x + 2.5
y = 1.5x

Answers

Answer:

y = 1.5x + 2.5

Step-by-step explanation:

Using a graph is the simplest way to find this

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Answer:

6

7

3

52.5

Step-by-step explanation:

help quick please please

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Answer:

57.5

formula

A= (a+b/2)h

57.5 is the answer
Formula: A= (a+b/2)h

2/3x+1=2/3x-1 solve for x and show work plz

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Answer:

this equation is not valid.

.............

...........

Billy used 6 centimeters of tape to wrap 3 presents. How many presents did Billy wrap if he used 32 centimeters of tape? Assume the relationship is directly proportional.

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He wrapped 16 presents.

I don't know I'm doing something else

Find an ordered pair , x y that is a solution to the equation. 5x-y=9

Answers

Answer:

(1, -4)

Step-by-step explanation:

In order to find a solution to a linear equation, we can substitute any value for one variable, simplify the equation, and find the value of the other variable to find a solution that is an ordered pair.  

Since any value for either variable will do, we can choose something simple, such as 1. I chose to substitute 1 for x into the equation, as seen below.  

[tex]5x-y = 9\\5(1)-y = 9[/tex]

Now, all I need to do is solve and isolate y:

[tex]5(1)-y = 9\\5-y = 9\\-y = 4\\y =-4[/tex]

So, with this linear equation, when x equals 1, y equals -4. Thus, a solution to the equation is (1, -4).

3/5 x 10 in simplest form

Anwser Key: 6 3/5
35/5
6
6 1/5

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Answer:

6

Step-by-step explanation:

Write the equation of the line in slope-intercept form using y=mx+b​

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-1/3x-7=y
Slope is equal to rise over run and b is where it touches the y axis
y= -2x -7 hope this helps!

The pyramid below has a volume of 240 cm3 and a height of 4 cm. What is the area of the base?


B = 60 cm2

B = 2880 cm2

B = 240 cm2

B = 180 cm2

Answers

ANSWER: B= 180 cm2

Sorry if it’s wrong I’m not 100% positive this is the right answer. :)

Solve each of the following equations. Show its solution set on a number line. Check your answers. 2x-3=2

Answers

Answer:

x - 2.5

Step-by-step explanation:

2x -3 = 2

2x = 5

x = 2.5

Hope this helps!

The above step by step is correct and here it is on the number line

PLEASE HELP IM BEING TIMED! I WILL GIVE BRAINLIEST

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63 is the answer it’s 63

Answer:

21

Step-by-step explanation:

Please help I suck at math and don’t pay attention

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3/5/20 Previous Balance - $2,200.25

3/6/20 ATM withdrawal - $50.00

3/10/20 Groceries (debit card purchase Dinky’s Supermarket) - $115.25

3/13/20 Electric Bill (write a check to Electropolis Electric Company) - $19.55

3/15/20 Rent (write a check to Duckworth Apts. Inc.) - $675.00

3/17/20 Car Insurance (write a check to States Insurance) - $125.00

3/18/20 Cleaning supplies (debit card purchase) - $11.40

3/18/20 Cable/Internet bill (write a check to Infinity Cable) – $50.53

3/20/20 Paycheck - $1,500.00

3/21/20 Charitable Donation (write a check to Help the Children Fund) - $35.00

3/22/20 Insurance co-pay (write a check to Dr. Hipbone) – $20.00

3/23/20 VOID check number 1026- Pumpkin Gas Station does not accept checks

3/23/20 Gasoline (debit card purchase for Pumpkin Gas Station) - $27.67

3/24/20 Haircut (debit card purchase for Pink and Blue Hair Salon) - $45.00

3/24/20 Birthday gift from Aunt Hortense - $40.00

3/27/20 Groceries (debit card purchase Dinky’s Supermarket) - $79.55

3/29/20 ATM withdrawal - $75.00

3/31/20 Gym Dues (write a check to Super Pump Gym) - $22.00

3) Who is the payee of the first check?

4)What was the amount of the check?

5) What was the check for?

6)What is the routing number on the check?

7) What is Jessie’s bank account number?

8) Fill out the next five checks as indicated above with the checks provided. Be sure to complete all the information including the memo.

9)Jessie Robinson’s check register does not match with her bank statement. There are three discrepancies. Indicate what are the discrepancies?

10)What is Jessie Robinson’s checking account balance?

11)Check your work and make sure the math in the check register is accurate.

the answer is d

This MIGHT be the last thing i need help on. Can u pls help

Answers

Answer: im positive its b

Step-by-step explanation:

Answer:

Irregular Quadrilateral

Step-by-step explanation:

It has four sides (not a pentagon).

None of it's angles/sides are equal (classifies as irregular).

help wit 3 and 4 for brainliest

Answers

Answer:

Answer for num.4 is B

For number 3 the the rate of change for function A is 10

The rate of change for function B is -5

and the highest function is Function A!

Have a great day!!! < 3

Step-by-step explanation:

ANSWER PLSSSSSSSSSSSSSSS SOMEONE

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The answer is A. Cause it’s the only one the says mi per hour

please put an explanation pleaseeeeeeeeeeeee

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Answer:

d

Step-by-step explanation:

In 24 weeks Amanda earned $4,924 selling cars. She earns the same amount of money each week. Let “n” stand for the amount she earned each week. How much money does Amanda earn in one week?

explain how you got your answer 9basically put the work in the explanation

Answers

Answer:

Let's assume that Amanda earns the same amount of money each week, and we'll represent that amount as "n".

We are given that in 24 weeks, Amanda earned a total of $4,924. We can set up an equation to represent this information:

Total earnings = Amount earned per week * Number of weeks

$4,924 = n * 24

To find the amount Amanda earns in one week, we need to solve for "n". We can do this by dividing both sides of the equation by 24:

$4,924 / 24 = n

To calculate this, we can use a calculator or perform long division:

n ≈ $205.17

Therefore, Amanda earns approximately $205.17 in one week.

Step-by-step explanation:

A block of cheese is in the shape of a rectangular prism with a width of 2.5 inches and a height of 5 inches. The volume of the block of cheese is 75 cubic inches. What is the length of the block of cheese?

Answers

Answer:

The formula for volume is l x w x h.

Step-by-step explanation

To find the missing link, we do the equation backwards.

l x 2.5 x 5 = 75

If we divide 75 by 5 then by 2.5, we get 6 which becomes our length.

To check, do 5 x 2.5 x 6 which should equal 75

6 is your length

A customer must be no more than 12 years old to order from the kids’ menu at a restaurant.
Which number line below represents a, the age of a customer who can order from the kids’ menu?

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Answer: I am not a big fan of this app but it has been crashing since I downloaded the update so it could have a little bit of an issue.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

i need help pleaseee

Answers

Answer:

The answer is option B.

Step-by-step explanation:

The inequality x ≥ 25 can be used to represent the distance an athlete runs each week, where x is the distance in miles.
Which of these statements best describe the distance run by the athlete each week?

1. The distance is more than 25 miles.
2.The distance is no more than 25 miles.
3.The distance is at least 25 miles.
4.The distance is less than 25 miles.

Answers

Answer: 3

Step-by-step explanation:

because  that symbol means equal to or greater than/ equal to or less than depending which way its facing.

The answer is 3 as the symbol represents more than equal to meaning it can be more or equal to 25

I need help also I did not mean to click c so that might not be the answer so please don't put c as your answer unless you are certain that c is the answer.

Answers

Answer:

  D.  (43 +60) +40

Step-by-step explanation:

The purpose of changing the grouping in addition problems is to simplify the mental effort required as much as possible. This will generally mean grouping ...

"complementary" numbers, numbers with the same number of leading or trailing zeros, numbers with the same sign, and fractions with the same denominator.

Analysis

A. Numbers ending in 0 are already grouped; no change is needed.

B. Fractions with the same denominator are already grouped; no change is needed.

C. Numbers with the same (negative) sign are already grouped; no change is needed.

D. Numbers ending in zero could be grouped to make addition easier:

  43 +(60 +40) . . . . regrouping would be useful

We also note that in A and D, the sum of numbers ending in zero is 100, so these numbers are "complements" of each other. This is another reason for grouping them together.

Can someone plssss help?

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Answer: Part B is D. Account 4, Part C is D. Accounts 1, 3, and 5.

Please help! sort the equations by whether they are polynomial or not (picture attached)

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Answer:

The ones with the square root and fractions are not polynomials and the one with the negative powers and the x^2+3x^5-6x+12x^3 are not polynomials. The rest are.

Step-by-step explanation:

If this has helped you, please mark brainliest. I can explain if you want, let me know in comments.

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