what is the rate of change of the area of a circle with respect to the radius when the radius is r=3

Answers

Answer 1

Now the formula for the area of a circle is: πr². So we take 3 and just put it into the equation. π·3²=28.27. This is the area of the circle. Now the rate of change I think would just be the difference between the radius and the area of the circle so 28.27-3=25.27.


Related Questions

HELP ASAP SHOW YOUR WORK AND EXPLAIN HOW YOU GOT YOUR ANSWER-NO LINKS OR JOKING AROUND

4. The steps for solving 7x + 3 = 52 are shown. Explain how each step helps solve the equation. Include the phrases, "Isolate the variable by _____," "Simplify," and "Isolate the variable term by _____" in your answers.

Answers

Answer:

x = 7

Step-by-step explanation:

Rearrange the equation to make x the subject.

Original:

7x + 3 = 52

subtract 3 from both sides

7x = 52 -3

7x = 49

Divide both sides by 7

x = 49/7

x = 7

Can someone help me please ?

Answers

Answer:

-4[tex]y^{5}[/tex]

Step-by-step explanation:

-8[tex]y^{10}[/tex]/2[tex]y^{5}[/tex] = -8/2 * [tex]y^{10 - 5}[/tex]

               = -4[tex]y^{5}[/tex]

it won't let me answer all the word's all i can give is: 8/2 = -8/2 *

              = -4

A company orders 28 box lunches from a deli for 204 $.40 if each box lunch cost the same amount what is the unit cost of each box lunch

Answers

Answer: $7.3
The total price is 204.40 for 28 boxes. So we need to divide the total price of how many were bought.

$204.40 / 28 = $7.8 for each box

write the equation
it passes through (0,-2) and is perpendicular to the graph of y=5x+7

Answers

Step-by-step explanation:

the line passes through (0,-2) and perpendicular to the graph of y=5x+7.

solution :

the slope = -1/5

the equation :

y+2 = -1/5 (x-0)

y = -1/5x - 2

Will give brainliest to the correct answer
Write each function in slope-intercept form
:9.4y=−8x−10
10. −5x+ 2y=−10

Answers

Step-by-step explanation:

9) y= -2x - (5/2)

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

MARKING BRAINLIEST: Can someone create a online graph - More information in the screenshot below

Answers

Answer:

Step-by-step explanation:

make a graph of what we need more of an explanation

(x + 1) divided by 6y

pls show working out pls thx.

Answers

Answer:Natural logarithm (redirect from LN(1+X))Natural logarithm (redirect from LN(1+X))including: ln ⁡ ( 1 + x ) = x 1 1 − x 2 2 + x 3 3 − x 4 4 + x 5 5 − ⋯ = x 1 − 0 x + 1 2 x 2 − 1 x + 2 2 x 3 − 2 x + 3 2 x 4 − 3 x + 4 2 x 5 − 4 x + ⋱ {\displaystyle

Natural logarithm (redirect from LN(1+X))including: ln ⁡ ( 1 + x ) = x 1 1 − x 2 2 + x 3 3 − x 4 4 + x 5 5 − ⋯ = x 1 − 0 x + 1 2 x 2 − 1 x + 2 2 x 3 − 2 x + 3 2 x 4 − 3 x + 4 2 x 5 − 4 x + ⋱ {\displaystyle32 KB (5,254 words) - 16:48, 18 October 2021

is 5x - 4y = 3 linear?

Answers

Answer:

Yes

Step-by-step explanation:

The highest exponent is 1.

Answer:

Yes 5x -4y= 3 is a linear

Step-by-step explanation:

It is a linear because it makes a straight line when it's on a graphed.

Hope this was helpful :)  

-
3
How many
foot pieces of
8
wood can you cut from a
board that is 1 7/8 feet long?

Answers

Step-by-step explanation:

17×8=136

136×8=1088

sorry if it's wrong I actually have a flu and my brain ain't working sorry but please mark me the brainiest

Answer:

1 full piece

Step-by-step explanation:

there are 12 inches in a foot so there are 12/1 x 15/8 inches in 1 7/8 feet, which is:

22 1/2 inches

22.5 ÷ 12 = 1.875 pieces or 1 full piece

Several students form a circle by standing next to each other. Samantha and Aaron are directly across from each other and are approximately 30 feet apart. If each student takes about about 4 ft of the circle. How many students are in the circle?

pls help​

Answers

Answer:

about 24 people in the circle

Step-by-step explanation:

find circumfrence using pi r squared which is 94 and divide by 4 which is the distance between students

please help I will make Brainliest if correct (show working)​

Answers

Answer:

I beleive X=2

Area is 24

Step-by-step explanation:

X=2 because the side with B has 4cm and on the other it has 6 but the 4 can be put into 6 and 6-4 is 2 if that made any sense

The area is 4 times 2= 8 and then 8 times 2 is 16

16+8=24

The probability that a red block is selected from a bucket is
3/8, and the probability that a blue block is selected is 2/8.
What is the probability that a red block or a blue block is
selected?
a) 1
b) 1/2
c) 5/8
d) 6/8

Answers

Answer:

5/8

Step-by-step explanation:

Since we don't know what the other color (s) are, all we need to do to determine the probability is add the two fractions, and that is your probability.

Answer:

5/8

Step-by-step explanation:

The probability of a red block shows 3/8.  This means there are 8 blocks total and only 3 of them are red.

The probability of a blue block shows 2/8.  Again there are 8 total blocks and only 2 are blue.

So the total number of blocks remains the same....8

The total of red and blue blocks is 3 + 2 = 5

So the probability would be 5/8

rewrite the equation in slope-intercept form 5x - 6y = 12

Answers

Answer:

M = [tex]\frac{5}{6}[/tex] Is correct answer

Step-by-step explanation:

Write in slope-intercept form,  y = m x + b.

m = [tex]\frac{5}{6}[/tex]

Graph in pic

(Hope this helps can I pls have brainlist (crown)☺️

i need help with get more math

Answers

Answer:

I'm not sure I understand but if you want more math to do look up Quizlet and do some of those tests

Match the reasons with the statements given.


Given:

Triangle ABR



Prove:

<1 = <2


(< means angle)

Pls help me

Answers

Answer:

Question about the triangle, what type of triangle is it?

Step-by-step explanation:

What is the equation of a line that is paralel to — 3x + 4y = 4 and passes through the point (4, 0)?

Answers

Step-by-step explanation:

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

=> 3x + 4y = 12

What is the 40th term of the arithmetic sequence?

21, 18, 15, 12, 9,...


−96


6


138


−99

Answers

Answer:

We start off with 21 as the first term. So a1 = 21

The common difference is d = -3 because we subtract 3 each time to get from one term to the other (eg: 21 to 18 is minus 3)

The nth term of an arithmetic sequence is found by using this formula

an = a1 + d(n-1)

let's plug in the values we have so far to get

an = 21 + (-3)(n-1)

an = 21 - 3(n-1)

an = 21-3n+3

an = -3n+24

Why do this? Well it's helpful so we can find any term in the formula we want. In this case, we want the 40th term. So just plug in n = 40 from here and you're done

an = -3n+24

a40 = -3*40+24

a40 = -96

pointing you to the answer of choice B) -96

find the distance from the origin to
the point (7,4).

Answers

Answer:

8912

Step-by-step explanation:

don't use awnser plz

7x+3y=8
3x-4y=14
solve by elimination method

Answers

Answer:

{x,y} = {2,-2}

Step-by-step explanation:

System of Linear Equations entered :

  [1]    7x + 3y = 8

  [2]    3x - 4y = 14

Graphic Representation of the Equations :

   3y + 7x = 8        -4y + 3x = 14  

Solve by Substitution :

// Solve equation [2] for the variable  x  

 

 [2]    3x = 4y + 14

 [2]    x = 4y/3 + 14/3

// Plug this in for variable  x  in equation [1]

  [1]    7•(4y/3+14/3) + 3y = 8

  [1]    37y/3 = -74/3

  [1]    37y = -74

// Solve equation [1] for the variable  y  

  [1]    37y = - 74  

  [1]    y = - 2  

// By now we know this much :

   x = 4y/3+14/3

   y = -2

// Use the  y  value to solve for  x  

  x = (4/3)(-2)+14/3 = 2

Solution :

{x,y} = {2,-2}

thats all. hope u understood.

3/4 of a number 120 What is three-eights of the number? please answer no point scamming i will give you brainiest

Answers

Answer:

60

Step-by-step explanation:

Let the number is x.

3/4 of a number is 120:

3/4x = 120x = 120*4/3 = 160

What is three-eights of the number:

160*3/8 = 60

Write the equation of a line, in slope intercept form,
that has a slope of 5 and an intercept of (0,-3).

Answers

Answer:

y = 5x -3

Step-by-step explanation:

Slope intercept form is y = mx + b

m = slope

b = the y intercept

The problem gives you a slope of 5, and it gives you the y interecept of -3.

Plug those into slope intercept form:

y = 5x -3

!

Darren is training for a triathlon. Each week, he goes to the gym for a maximum of 20 hours. He spends at least 8 of those hours weightlifting (x). He wants to spend no more than 15 hours doing cardio exercises (y). Write a system of linear inequalities that represents the restrictions of this scenario.

Answers

The graph of the equations was plotted using geogebra graphing and attached.

Let x represent the hours weightlifting and y represent the hours doing cardio exercises.

Since he spend a maximum of 20 hours, hence:

x + y ≤ 20   (1)

Also, he spends at least 8 of those hours weightlifting, hence:

x ≥ 8          (2)

He wants to spend no more than 15 hours doing cardio exercises, this is:

y ≤ 15     (3)

The graph of the equations was plotted using geogebra graphing and attached.

Find out more at: https://brainly.com/question/17178834

Dont leave a link hxhdbf

Answers

Answer:

27m^6 n^12

Step-by-step explanation:

Answer:

27m^6n^12

Step-by-step explanation:

3^3 = 27

m^2^3 = m^6

n^4^3 = n^12

Hence, it is

27m^6n^12 (the last option)

Hope this helps and be sure to have a wonderful time at Brainly! :D

Zoom in to see, NEED HELP ASAP please don’t just comment. Given that ABC EDF use the image below.

Answers

Answer:

Your missing stuff

Step-by-step explanation:

You are a missing way too many things these questions can not be answered but I'm gonna guess and say df is 17

Simplify the expression to a + bi form:
(1 – 8i) + (8 + 6i)

Answers

I think the answer would be 9-2i

If you can help please do! Thank you!

Answers

Answer:

see explanation

Step-by-step explanation:

The diagonals of a parallelogram bisect each other , then

CO = OA = b

DO = OB = a

(a)

CA = CO + OA = b + b = 2b

(b)

DC = DO + OC = a - b

(c)

CB = CO + OB = b + a = a + b

a recreational club charges a one time $20 membership fee and $3 for use of the pool

i just need an answer and step by step work of it someone help me please.​

Answers

Answer:

what is the question asking?

can someone pls help me with number 5 pls show your work so i can understand thanks

Answers

Step-by-step explanation:

Let's represent Aaron's age with x and

Charlene's age with x+8

x+x+8=44

2x+8=44

2x=44-8

2x=36

x=36÷2

x=18

Aaron is 18 years old.

While Charlene is 18+8=26 years old.

Hope this helps!

If someone answers this you getting 25 points and brainliest :D​

Answers

the answer Is 0.24

Step-by-step explanation:

2.1 times 4.4 is

9.24

3.6 divided by 0.4 is

9

9.24 - 9

= 0.24

Remeber guys, we need to use pemdos. In this case we need to do 1. Multiplication

2. Division

3. Subtraction

We cannot do subtraction or division first. We need to go by order.

g(x) = 3x-1
f(x) = x + 5.
find g (f (4)

Answers

Answer:

g(x)=3

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

g(x) = 3x-1

f(x)= x+5

g(f(4)

plug 4 into f

f(4)

now apply x+5

f(4)=4+5=9

plug 9 into g

g(9)

now apply 3x-1

g(9)=3(9)-1

3 ×9= 27

27-1=26

hence the answer is 26

(sorry if I'm wrong I just finished this topic myself)

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