Maria is making a candle in the shape of a cylinder. She wants the candle to have a height of 3 cm and a radius of 2 cm. How much wax does Maria need?

Answers

Answer 1

volume = PI x r^2 x h

using 3.14 for pi

volume = 3.14 x 2^2 x 3

volume = 37.7 cubic cm of wax needed

Round answer as needed

Answer 2

Answer:

12Pi cm3

Step-by-step explanation:


Related Questions

Suppose you are walking home from the skating ring , you have to walk 6 miles east and 9 miles north , use the Pythagorean theorem how far is the skating ring from where u are.


plzzzzz!!!!!help

Answers

this forms a right triangle where you need to calculate the length of the hypotenuse by using the Pythagorean theorem

a^ + b^2 = c^2

6^2 = 36

9^2 = 81

36+81 = 117

sqrt(117) = 10.816

10.8 miles

NEED HELP FAST!
1.
(08.05 LC)
A student is trying to solve the system of two equations given below:

Equation P: y + z = 6
Equation Q: 8y + 7z = 1

Which of the following is a possible step used in eliminating the y-term? (1 point)


(y + z = 6) • –8

(y + z = 6) • 7

(8y + 7z = 1) • 7

(8y + 7z = 1) • 8

Answers

(y + z = 6) * -8 <==== 

Answer:

(y + z = 6) • –8

Step-by-step explanation:

Because in order to eliminate 8 you will need to multiply by a negative number so that you can eliminate a positive number.

Hope this helped!

What is b-r-3,when b=9 and r=2

Answers

b-r-3

Substitute values
9-2-3

9-2=7
7-3=4

Final answer: 4

A drawer contains 4 red socks, 8 white socks, and 6 blue socks. Without looking, you draw out a sock, return it, and draw out a second sock. What is the probability that the first sock is white and the second sock is red?

Answers

Hello there. I think I have the answer to your question. Without it simplified I think that the probability for white is 8/18 and for red it should be 4/18. 
hEY THERE i think the probability that the first sock is white would be 8/18=4/9 & the second sock being red would be 4/18 = 2/9

find the obtuse angle the line y-2x=7 makes with the x- axis

Answers

In analytical geometry, there are already derived equations to find the distance of lines and points as well as the angle made between two lines. As special case is when the other line is one of the coordinate axis. Then, the formula can be simplified to

tan θ =m, where m is the slope of the equation

In the next step, we also incorporate operations of calculus. Since the slope is equal to Δy/Δx, this is equivalent to dy/dx in calculus. Therefore, you can find the slope by differentiating the equation in terms of x.

y-2x=7
y = 2x+7
dy/dx = 2 =m

So,

tan θ = 2
θ = tan⁻¹(2)
θ = 63.43°

Decide if the problems are parallel,perpendicular or neithet and why

1).12x-4y=8
2).3y=-x+5
3).y=1/3x-5
4).12x-10=4y
5).2/3×+2y=8

Answers

Let's write each one in the form y = ax + b

1).12x-4y=8    → y = 3.x + 2
2).3y=-x+5    →  y = (-1/3)x +5/3
3).y=1/3x-5    → y = (1/3)x -5
4).12x-10=4y → y = 3.x - 5/2
5).2/3×+2y=8 → y = (-1/3).x +4

1) and 4) are parallel since they have the same slope (m=3)
2) and 5) are parallel (m = -1/3 = same)
1) and 2) are perpendicular since the product of their slopes = -1 [(3).(-1/3)]
1) and 5) are perpendicular ((3).(-1/3) = -1
2) and 4) are perpendicular ((3).(-1/3) = -1
4) and 5) are perpendicular ((3).(-1/3) = -1

What is the simplified form of 20 times x to the fifth power over 15 times y to the sixth power times the fraction 5 times y to the fourth power over 6 times x squared?

Answers

[tex] \cfrac{20x^5}{15y^6}* \cfrac{5y^4}{6x^2} =\\\\ \cfrac{2x^5}{3y^6}* \cfrac{5y^4}{3x^2} = \\\\ \cfrac{2x^3}{3y^2}* \cfrac{5}{3} = \\\\\cfrac{10x^3}{9y^2} [/tex]

Max has more than 5 carrots (number of carrots Max has = c

Answers

c>5 Hope this helps.

A rectangular aquarium is 2/3 filled with water and then is tilted on its side until the water level coincides with one edge of the bottom. During the process, 6 quarts of water are poured out. What is the volume of the tank in quarts?

Answers

let A, B, C be the dimensions of the rectangular aquarium. Volume = A x B x C 2/3 ABC - 6 = 1/2 ABC ABC((2/3)-(1/2)) = 6 Volume =ABC = 6 x 6 = 36 quarts

Answer:

36 Quarts

Step-by-step explanation:

Let the volume of the Aquarium be x quarts.

Hence amount of water filled in it will be

[tex]\frac{2x}{3}[/tex] quarts

Also problem says that the tank is tilted until water level coincides with one edge of the bottom. At this position , the amount of water filled in the tank will be half of the total volume , as the slant water level will be the diagonal of the tank and a diagonal divides the tank in two halves.

Hence current volume of water in the tank will be

[tex]\frac{x}{2}[/tex]

And in this process the amount of water poured out is 6 quarts. It will the difference between the amount of water earlier in the tank and the amount of water in the tank now. Hence

[tex]\frac{2x}{3}-\frac{x}{2}=6[/tex]

[tex]\frac{4x-3x}{6}=6[/tex]

[tex]x=36[/tex]

Hence the volume of the tank is 36 quarts.

Jason and Jenny are out on a lunch date. Jason gives Jenny a bouquet that has 4 roses, 3 carnations, and 4 orchids. They decide that Jenny gets to choose their lunch order if the flower she randomly picks from the bouquet is a carnation or a rose. What is the probability that Jenny gets to choose lunch?

Answers

4 + 3 + 4 = 11
There are 7 flowers that Jenny can pick in order to order lunch.
Therefore the probability is 7/11

Please Help!
1. Define an example of a function – this could be distance traveled vs. time, the cost
of a turkey vs. weight, ect.

2. Show this relation as a set of correctly determined ordered pairs -- you will need
at least 5 ordered pairs in set notation -- remember that set notation will look
like: {(1, 2)(3, 4)(5, 6)(7, 8)(9, 10)} with the { } around the ordered pairs.

Can you please explain how you did it. I want to understand. (30pts)

Answers

I pay a babysitter $8 per hour.

[tex]p=8t[/tex]

where p = pay ($) and t = time (hr)

Pick some values for t and substitute them into the formula to get the corresponding pay.

(0, 0)  <--- no hours, no pay
(1, 8)  <--- one hour, pay $8
(2, 16)  <--- two hours, pay $16

etc.

[tex]\{(0,0), (1,8), (2,16), (3, 24), (4, 32), (5, 40)\}[/tex]

A large planetarium in the shape of a dome is being built. When it is complete, the base of the dome will have a circumference of 87 kilometers. What area of land was required for this planetarium?

Answers

Area = pi * r^2, circumference = 2*pi*r, u need to get 'r' the radius:

r = 87 km / 2 / pi = 13.846 km,

Now the areas is:

A = pi * 13.486^2 = 602.32188213127836 km^2 = 602.32 km^2

Huge

Answer:

602.32 km²

Step-by-step explanation:

First, find the radius of the circle using the circumference formula

C = 2π*r

87 = 2π*r

∴ r = 13.8465 km

Second, using the radius, calculate the area:

A = π * r²

A = π * 13.8465²

A = 602.32 km ²

Given the expression 5a2b – 13ab + 7a3 – 4b, do the following as instructed below:
1. Write the polynomial in descending order.
2. Classify the polynomial by the number of terms.
3. State the degree of the polynomial.
Thank you !!

Answers

Ok, here is the answer:

A. The descending order of this expression is 7a^3+5a^2b-13ab-4b.

B. This is a polynomial.

C. This is a 3rd degree polynomial.
ANSWER TO QUESTION 1

The given expression is

[tex]5 {a}^{2} b - 13ab + 7 {a}^{3} - 4b[/tex]

To write the polynomial in descending order means we should write in decreasing powers of
[tex]a[/tex]


So in descending order we have,


[tex]7 {a}^{3} + 5 {a}^{2}b - 13ab - 4b[/tex]


ANSWER TO QUESTION 2

When a polynomial is in simplified form and it has one term, we call it a monomial.



If a simplified polynomial has two terms,it is called a binomial.




If a simplified polynomial has three terms, it is called a trinomial.



If a simplified polynomial gas four or more terms, we just call it a polynomial.



The given polynomial

[tex]5 {a}^{2} b - 13ab + 7 {a}^{3} - 4b [/tex]

has four terms and it us in simplified form, so it is classified as polynomial.



ANSWER TO QUESTION 3.

The degree of the polynomial is the highest degree the polynomial has.


We calculate the degree by adding the exponents of the two variables of each term.


For instance the first term is
[tex]7 {a}^{3} = 7 {a}^{3} {b}^{0} [/tex]
[tex]degree = 3 + 0 = 3[/tex]


Since the highest degree is 3, we say the degree of the polynomial 3.

An Octagon has the radius of 56 and an area of 10,391.9 square millimeters.

a1) What is the approximate perimeter of the octagon? Round to the nearest whole number.
A) 93
B) 186
C) 371
D) 1299

a2) What is the approximate length of one side of the octagon? Round to the nearest whole number.
A) 23
B) 46
C) 371
D) 1299

Answers

Answer:

Step-by-step explanation:

Alright, lets get started.

The area of octagon is given [tex]= 10391.9[/tex]

The formula for area of octagon with side a is = [tex]2(1+\sqrt{2} )a^2[/tex]

[tex]10391.9 = 2(1+\sqrt{2} )a^2[/tex]

hence ,

[tex]a^2 = \frac{10391.9}{2(1+\sqrt{2} )}[/tex]

[tex]a^2 = 2152.2329[/tex]

[tex]a = 46.39[/tex]

Hence the length of the side of the octagon is 46    :   Answer

Now perimeter of the octagon will be = [tex]8*side length[/tex]

Hence the perimeter = [tex]8*46.39 =371.1[/tex]

hence the perimeter of the octagon is 371   :   Answer

Hope it will help :)

f(x) = –5x – 4 and g(x) = –3x – 2, find (f – g)(x).

Answers

(f-g)(x)=
f(x)-g(x)=
(-5x-4)-(-3x-2)=
-5x-4+3x+2=
-2x-2

To find this, subtract the two equations.
(-5x-4)-(-3x-2)
(-5x-4)+3x+2
-5x-4+3x+2
-2x-4+2
-2x-2

Final answer: -2x-2

while his bank account balance was -$45 Dylan made 6 withdrawals of 9$ what was his new bank account balance?

Answers

-45$ Is his current balance
6 withdrawals of 9$
6 times 9 is 54
He withdrew a total of 54$
-45 - 54
Is -99$
His new account balance is -99$

Identify the equation of the line that has a y-intercept of 7 and is parallel to the graph of y = 5x - 3

Answers

If the lines are parallel, then that means they have the same slope of 5x. The y intercept would by 7 instead of -3. 
Your equation would be y=5x + 7

Side GH = 3, side IG = 5, side JK = 3, and side LJ = 5. What side corresponds to side HI and can be used to show that ΔGHI ≅ ΔJKL by SSS? (Enter your answer using letters only)

Answers

Side KL from Triangle JKL corresponds to side HI from Triangle GHI.  Since all of the corresponding sides of both triangles are congruent, Triangles JKL and GHI are congruent by SSS.

Since it says enter with only letters, you would put KL as the answer

A cylinder has its height doubled and its radius cut to one third. What is the ratio of the volumes of the modified cylinder to the original cylinder?

Answers

[tex]V_{1} = h_{1}\pi r^{2} [/tex]

[tex]V_{2}=2h_{1} \pi ( \frac{1}{3} r_{1})^{2}=\frac{2}{9} \pi h_{1}( r_{1})^{2}[/tex]

Taking the ratio of V2/V1 = 2/9

Final answer:

The ratio of the volumes of the modified cylinder (height doubled and radius cut to one third) to the original cylinder is 2:9.

Explanation:

To find the ratio of the volumes of the modified cylinder to the original cylinder, we need to use the formula V = πr²h.

Let the original radius be 'r' and the original height be 'h'. The volume of the original cylinder V1 is given by:

V1 = πr²h

After doubling the height and cutting the radius to one third, the new radius is 'r/3' and the new height is '2h'. The volume of the modified cylinder V2 is:

V2 = π(r/3)²(2h) = π(r²/9)(2h) = (2/9)πr²h

The ratio of the volumes is then:

Volume Ratio (V2/V1) = (2/9)πr²h / πr²h = 2/9

So, the ratio of the volumes of the modified cylinder to the original cylinder is 2:9.

What is equivalent to this statement:4 is 80% of x

Answers

4 is 80% of x = 5

4/80*100=5
Final answer:

An equivalent statement to '4 is 80% of x' is 'x is 5'.

Explanation:

The statement '4 is 80% of x' can be written as the equation 4 = 0.8x. To find an equivalent statement, we can solve this equation for x.

To solve for x, divide both sides of the equation by 0.8: x = 4 / 0.8 = 5.

Therefore, an equivalent statement is: x is 5.

Learn more about Equivalent statement here:

https://brainly.com/question/35428895

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Only false statements have counterexamples. true or false

Answers

The statement 'Only false statements have counterexamples' is false.

A counterexample is an instance that disproves a statement by providing an example where the premises are true, but the conclusion is false. Thus, only false statements have counterexamples can be considered false. A true statement cannot have a counterexample because that would contradict its truth.

For example, consider the statement 'All swans are white.' A single observation of a black swan would be a counterexample that disproves this statement, showing it is false.

How do i solve
3(x+3)=18

Answers

Solve for x.
3(x+3)=18
Distribute the brackets.
3*x=3x
3*3=9
3x+9=18
Subtract 9 from both sides.
(3x+9)-9=(18)-9
3x=9
Divide both sides by 3.
(3x)/3=(9)/3
x=3

Hope this helps.
-Benjamin
Distribution
3 times X is 3x and 3 times 3 is 9
So
3x+9 =18
-9 -9
0. 9
3x=9

9/3 is 3
X=3

What fraction of a minute is 42 seconds

Answers

It would be 7/10 of a minute
The answer is:  "7/10" . 

42 seconds is 7/10 of one minute.
______________________________________________
Explanation:
______________________________________________
 There are 60 seconds in 1 min.
______________________________________________
  So;  42 seconds is:  42/60 of 1 min.

42/ 60 = (42÷6) / (60÷6) = 7/10 .
______________________________________________
The answer is:  "7/10". 

42 seconds is 7/10 of one minute.
______________________________________________

what is a constant interval and how does it appear on a graph?

Answers

a function whose value does not vary, regardless of the input.

A function is said to have a constant interval if, for any input, the output is the same. The graph of a function with a constant interval is parallel to the axis of the range, i.e., a horizontal line.

A constant interval refers to a specific type of interval that remains the same or constant over its entire length. In other words, the difference between any two consecutive points or numbers in a constant interval is always the same.

Let's assume that f(x) = c is a function with a constant interval.

Then,

for any [tex]x_1\leq x_2[/tex] or [tex]x_1\geq x_2[/tex],

[tex]f(x_1) = f(x_2)[/tex].

Thus, a function whose output remains constant for every input is called a function with constant intervals.

Learn more about Constant Intervals here:

https://brainly.com/question/29047444

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Question 2 (multiple answer)
Which simplifications of the powers of i are correct?

There is more than one correct answer. Select all correct answers.

i7=i4⋅i3=−1⋅−i=i
i6=i4⋅i2=1⋅−1=−1
i6=i4⋅i2=−1⋅−1=1
i7=i4⋅i3=1⋅−i=−i
i8=i4⋅i4=−1⋅−1=1
i5=i3⋅i2=−i⋅−1=i
i5=i3⋅i2=i⋅−1=−i
i8=i4⋅i4=1⋅1=1

Answers

In mathematics, the roots or zeros of an equation could be real or complex. Complex roots are those that contain 'i' in their variables. This means that the root is imaginary so it cannot be plotted on a Cartesian plane. The equivalent of i is equal to √-1. So, when you take its square, i² = -1. Then, i³ = -i and i⁴ = 1. These are the important equalities you should know to simplify i raised to a very large number. All you have to do is partition the number in multiples of 2, 3 or 4 because they can be simplified. Taking note of these equalities, the correct operations are:

i6=i4⋅i2=1⋅−1=−1
i7=i4⋅i3=1⋅−i=−i
i5=i3⋅i2=−i⋅−1=i
i8=i4⋅i4=1⋅1=1

estimate 17.5×8.4 need help

Answers

There is no need for estimating since this answer is unless you want it in whole number 17.5 x 8.4 = 147
What he said the answer was

HELP PLEASE !!!!

Solve rt-3f=12 for f

SHOW STEPS !!!! And explain how to get answer please

Answers

rt-3f=12  subtract rt from both sides

-3f=12-rt  divide both sides by -3

f=(rt-12)/3

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

If you have any questions on how I did this, please ask!

rt - 3f = 12

-3f = 12 - rt

f = (12 - rt) / 3

Because we do not know what r nor t equal, we cannot find the exact value of f...


If this answer helped you please rate my answer 5 stars, press the "Thanks" button, and if you LOVED my answer... please (when available) press the "Mark as Brainliest" button.

Have a Great Day!

Please help! find the solution of this system of equations -6x + 2y=38 6x - 8y= -44

Answers

Solve it by using the elimination method.
-6x and 6x eliminate each other.
You have -6y=-6
Y=1
Plug this in into another equation and you have x

Solve it by using the elimination method.

-6x and 6x eliminate each other.

You have -6y=-6

Y=1

Plug this in into another equation and you have

-6x+2(1)=38

solve for x to get

X= -6

Robbie did a survey of four butterfly parks and wrote the following observations: Butterfly Park SurveyPark Number of White Butterflies Total Number of Butterflies A 24 86 B 43 92 C 12 68 D 32 52 Based on the survey, which park had the greatest percentage of white butterflies?

Answers

A = 24 / 86 = 28%
B = 43 / 92 = 47%
C = 12 / 68 = 18 %
D = 32 / 52 = 62%

Answer D

Answer:

A = 24 / 86 = 28%

B = 43 / 92 = 47%

C = 12 / 68 = 18 %

D = 32 / 52 = 62%

Answer D

Step-by-step explanation:

What is the ratio of 2.5 million to 1.5 million

Answers

It should be 5:3. You can cancel the millions first, then make the numbers 25 and 15. Divide both side by 5 and you will get the answer.
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