What is the volume of an ice cream cone if the radius is 2 cm and the height is 7 cm

Answers

Answer 1

Hello!

Answer:

[tex]\boxed{ \bf The~volume~is~29.32~cm^3.}[/tex]

___________________________________________________

Explanation:

To find the volume of the cone, we must use a certain formula:

V = [tex]\frac{1}{3}[/tex]πr²h

Let's plug in our values:

V = [tex]\frac{1}{3}[/tex]π(2)²(7)

V =  [tex]\frac{1}{3}[/tex]π(4)(7)

V =  [tex]\frac{1}{3}[/tex]π(28)

V = 29.32


Related Questions

The ratio of the number of boys to the number of girls in a class is 12:13 What percentage of the class are boys?

Answers

48%

Step-by-step explanation:

add the ratio together which is 25

pick the ratio of boy

divide 12 by 25 and multiply 100

12/25×100= 48%

Answer:

48%

Step-by-step explanation:

b/g=12/13

so b/12=g/13=k

b=12k

g=13k

so b+g=25k so k=b+g/25

b=12*(b+g)/25=12*4*(b+g)/25*4=48(b+g)/100

so 48%  are boys

The length of a rectangle is increasing at a rate of 4 cm/s and its width is increasing at a rate of 8 cm/s. When the length is 8 cm and the width is 5 cm, how fast is the area of the rectangle increasing?

Answers

Answer:

Step-by-step explanation:

[tex]A = lw \nl\frac{\dA}{\dt}[/tex] =[tex]\frac{\dA}{\text{d}l}\frac{\text{d}l}{\dt} + \frac{\dA}{\text{d}w}\frac{\text{d}w}{\dt}[/tex] =[tex]w\frac{\text{d}l}{\dt} + l\frac{\text{d}w}{\dt}[/tex] [tex]\nll = 20 \text{ cm}[/tex] \;\; [tex]\frac{\text{d}l}{\dt} = 8 \text{ cm/s}[/tex] \;\;w = 10 \text{ cm}, \;\;  [tex]]\frac{\text{d}w}{\dt} = 3 \text{ cm/s}[/tex] [tex]\nl\frac{\dA}{\dt} =(  10 \text{ cm} )( 8 \text{ cm/s} ) + (  20 \text{ cm} )( 3 \text{ cm/s} )  =140 \text{ cm}^2\!\text{/s} [/tex]

Given :

The length of a rectangle is increasing at a rate of 4 cm/s and its width is increasing at a rate of 8 cm/s. When the length is 8 cm and the width is 5 cm .

To find :-

how fast is the area of the rectangle increasing?

Solution :-

As we know that :-

A = lb

To find the rate :-

d(A)/dt = d(lb)/dt .

Differenciate :-

dA/dt = l (db/dt ) + b (dl/dt )

Substitute :-

dA/dt = 8*8 + 5*4dA/dt = 64 + 20 cm²/s dA/dt = 84 cm²/s

A flat object with two sides, one colored red (R), the other green (G), is tossed 2 times. List all possible outcomes of the experiment.

Answers

Answer:

3 possible outcomes

Step-by-step explanation

1) R R

2) R G

3) G G



Lynn has two jobs. She earns $7.50 per hour as the hostess for a restaurant and earns
$10 per hour babysitting for a neighbor.
Part 1
Which inequality represents the number of hours working as a hostess, h, and the
number of hours babysitting, b, that Lynn needs in order to earn at least $150 in one
week?
A. h + b > $150
B. h + b 2 $150
7.5h + 10b > $150
• D
7.5h + 10b $150
e here to search

Answers

Answer:

7.5h + 10b > $150

Step-by-step explanation:

h represents the amount of hours Lynn works as a hostess for a restaurant, and she gets $7.50 per hour. $7.50h is how much money she gets per hour. b represents the amount of hours Lynn spends working as a babysitter, and she gets $10 per hour. $10b is how much money she gets from babysitting per hour. The total amount of money she gets this week must be more than $150. So the answer is 7.5h + 10b > $150. Hope this helped!

what does the pythagorean theorem and it’s Converse state? why is this theorem important? what are some real world examples in which this theorem is used?

Answers

Answer:

The converse of the Pythagorean Theorem states that: If the square of the longest side of the triangle is equal to the sum of the squares of the other two sides of the triangle, then the triangle is a right triangle.

Step-by-step explanation:

1.What values could replace the "?" in these equations to make them true?

2. How would you explain to a friend who doesn't know about logarithms what the equation

LaTeX: \log_{10}x\:=\:y
log
10

x
=
y

says about x and y?

Answers

Answer:

Remember that logarithms are inverse of exponentials. That means the result of the logarithm is equal to the exponent of a power with the same base.

1. (a)

[tex]log_{10} (10)=1[/tex]

Notice that the result is one beacuse [tex]10^{1}=10[/tex]

(b)

[tex]log_{10}(10000)=4[/tex]

Because [tex]10^{4}=10000[/tex]

(c)

[tex]log_{10}(?) =7 \implies 10^{7} =10000000[/tex]

So, [tex]log_{10}(10000000)=7[/tex]

2.

I would say to thim that [tex]x[/tex] and [tex]y[/tex] are variables of the logarithm, which be solved by imagine the logarithm as an exponential like

[tex]log_{10} (x)=y \implies 10^{y}=x[/tex]

In other words, the [tex]y[/tex] is the exponent and the [tex]x[/tex] is the result of the exponential.

The string of a kite is 100 meters long and it makes an angle of 60° with the ground. What is the height of the kite?

Show your work please)

Answers

Answer:

  50√3 ≈ 86.6 m

Step-by-step explanation:

The geometry can be modeled by a right triangle with the height of the kite being the leg opposite the 60° angle. The hypotenuse has the given length of 100 m.

The mnemonic SOH CAH TOA reminds you that the relation between angles and the sides of interest here is ...

  Sin = Opposite/Hypotenuse

  sin(60°) = (kite height)/(100 m)

  kite height = (100 m)·sin(60°) = (100 m)(√3)/2

  kite height = 50√3 m ≈ 86.6 m


Find x when
-1/2
+
X
=
-21/4

Answers

Answer:

-19/4

Step-by-step explanation:

-1/2 + x =-21/4

x=-21/4+1/2

x=-21/4+2/4

x=-19/4

PLEASE HELP

Sara and Sam are each working on a science project in which they need to research the individual masses of the nine planets (including the dwarf planet Pluto as the ninth planet). Sara completes her data for the planets' masses in kilograms while Sam's data is in milligrams.
Sara:


Approximate how many times greater Saturn's mass is than Mercury's.

A: 2,000,000

B: 200,000

C: 20,000

D: 2,000



Answers

Answer:

20,000


Explanation:


Mass of the saturn = 5.683 × 10^26

Mass of the mercury = 3.285 × 10^23

Now divide them

(5.683 × 10^26)/3.285×10^23

= 18.668.655

so approximately

it is 20,000 times greater than mercury.

FOR BRAINLIEST only RIGHT ANWERS

Answers

Answer:

Length of arc: 6π

Step-by-step explanation:

~ Let us answer this question in terms of π, remaining so ~

1. Assume that this is a complete circle, for the moment being. The chord with length of 12 units would act as the diameter, and using that information we could determine the circumference of this complete circle...which will help us in the future. Apply the formula π * d as such: π * 12 ⇒ 12π to get the circumference as 12π.

2. Knowing that the length of the complete circle's circumference is 12π, this arc is part of a semicircle, meaning that it's value would be half of that of the complete circle's circumference, or in other words: 12π/2 ⇒ Answer ~ Length of arc: 6π

Answer:Length of arc: 6π

Step-by-step explanation:

What’s the correct answer for this?

Answers

Same slopes, different constant, so parallel lines.

Answer: ... parallel because their slopes are equal.  Last choice.

Answer:

D

Step-by-step explanation:

Yes, lines l and k are parallel since they are having equal slopes

What’s the correct answer for this?

Answers

Answer:

A.

Step-by-step explanation:

The equation of circle is :

(x−a)² + (y−b)² = r²

So the equation is

(x-3)² + (y-(-2))² = (6)²

Where center = (a,b) = (3,-2) and

Radius = r = 6

Sin2x + cos3x expand the expression

Answers

Step-by-step explanation:

Use double and triple angle identities:

sin(2x) + cos(3x)

2 sin x cos x + 4 cos³x − 3 cos x

Which figure has a greater area?
19 ft
16.4 ft
.
15 ft
16.1 ft​

Answers

Answer:

green triangle

Step-by-step explanation:

The green triangle has an area of

A = 1/2 bh

A = 1/2 (15) * 19

A =142.5 ft^2

The blue triangle has an area of

A = 1/2 bh

A = 1/2(16.1) (16.4)

A =132.02 ft^2

The green triangle has a greater area

a desert tray has three slices of cake, three key lime pies, and four ice cream sundaes. What is the probability of the next two customers both select key lime pie?

Answers

Answer:

The probability of the next two customers both select key lime pie is 1/15

Step-by-step explanation:

No. of slices of cakes = 3

No. of key lime pies = 3

No. of ice cream sundaes = 4

Total deserts = 3+3+4=10

We are supposed to find The probability of the next two customers both select key lime pie

Probability of selecting key lime pie by first customer =[tex]\frac{3}{10}[/tex]

So,Total deserts =10-1=9

No. of key lime pies = 3-1=2

So,Probability of selecting key lime pie by second customer = [tex]\frac{2}{9}[/tex]

So,the probability of the next two customers both select key lime pie=[tex]\frac{3}{10} \times \frac{2}{9} =\frac{1}{15}[/tex]

Hence the probability of the next two customers both select key lime pie is 1/15

help Marshmello ok xd

Answers

Answer:

84

Step-by-step explanation:

We simply plug in 1.75 for x into y = 48x, and when we do so we get y = 48 * 1.75 = 84 cups of coffee. Hope this helps!

Answer:

B) 84

Step-by-step explanation:

48 times x is the cups of coffee sold in x hours.

if x = 1.75, then you times 48 by 1.75

48 x 1.75 = 84

What is a tangent line in relation to a circle?

Answers

Answer:

A tangent to a circle is a straight line which touches the circle at only one point.

Step-by-step explanation:

This point is called the point of tangency. The tangent to a circle is perpendicular to the radius at the point of tangency.

An experienced landscaper thought it would be funny to play a joke on some rookie landscapers. The rookies were given the measurements, l e n g t h equals 4 space cube root of 24 f t space a n d space w i d t h equals 6 space cube root of 3 space f t , and asked to find the exact area (no decimals) of the rectangular region they would be working with. Show the equation and all work needed to find the exact area in simplest form. Be sure to write a sentence explaining your answer. Don’t forget the label! Note: we want the exact area, which is not a decimal. Instead, provide the answer in simplest radical form.

Answers

Answer:

48∛9 ft²

Step-by-step explanation:

The length (L) and width (W) are given by:

[tex]L = 4\sqrt[3]{24}\\ W= 6\sqrt[3]{3}[/tex]

Since this is a rectangular region, the area is given by:

[tex]A=L*W=L \\A=4\sqrt[3]{24}* 6\sqrt[3]{3}\\A=24\sqrt[3]{72}\ ft^2[/tex]

The answer can be further simplified by factoring as follows:

[tex]A=24\sqrt[3]{72} = \\A=24\sqrt[3]{2*2*2*3*3}= 24\sqrt[3]{2^3*9}\\A=48\sqrt[3]{9}\ ft^2[/tex]

The exact area is its simplest form is 48∛9 ft²

One hundred examiners each marking eighty scripts per day are needed to mark an examination in fourteen days.How many days would two hundred examiners each marking forty scripts per day take to mark the same examination?

Answers

Answer:

SOS

Step-by-step explanation:

You must become familiar with these instructions and the associated documents, as well as any

other instructions issued by OCR, or your supervisor. These instructions form part of your

agreement with OCR. Please refer to clause 2 of your agreement and the task descriptor.

b) Please remember the importance of the marking task. The public expects that the task will be

carried out with a high level of responsibility and concentration. You must only carry out marking

in private, and not in any public place. Marking must only be done by the appointed person. You

should not mark whilst you are in your paid employment, unless your employer permits this.

c) Confidentiality and disclosure - Please refer to your agreement clauses 5.1 - 5.6. You should not

communicate with third parties (particularly the media) about your work without the permission of

the Chief Executive of OCR. Do not give any details of your work to any unauthorised people.

You should only mark in conditions that are secure and confidential.

d) On the rare occasions when you may have to take any OCR materials outside the UK, it is your

responsibility to ensure that all such materials are kept secure in transit. OCR materials include

but are not limited to hard copy material, discs, memory sticks, and laptops containing OCR

related information.

The taking of such materials outside the UK and their return to the UK must always be undertaken

by you personally. You must not ask someone else to do this on your behalf.

You must not return materials to OCR whilst you are outside the UK. Once in the UK when you

need to return materials to OCR, please utilise the specified returns service.

e) You should be aware that if checking of your assessment activities reveals variation in

acceptable tolerances OCR may instruct you to stop assessing and may terminate your

agreement in accordance with clause 10.2 of your agreement for the provision of assessment

services. In these circumstances in accordance with clause 5.4 of your agreement for the

provision of assessment services, you must return all confidential assessment material to OCR

as a matter of urgency. You will be paid for assessment completed.

f) You must tell OCR and your marking supervisor as soon as possible of any change of personal

circumstances,

i. any change of address (which must be confirmed in writing),

ii. illness or other circumstances which may prevent you from meeting deadlines for work.

Use the Assessor Support Line on 01223 552556 or email general

assessor enquiries.

Please update your personal details, including your permanent home address and email address,

in the Assessment Specialist Portal:

g) If you wish to use a different address for the delivery of scripts during the examination/marking

period, you should have updated your details in the Assessment Specialist Portal:

no later than 12 October for a November

series, 9 November for a January series and 30 March for a June series.

What is the solution to the equation? 5 = two-fifths a 2 4 and three-fifths 12 and one-half 25

Answers

Answer:

  12 1/2

Step-by-step explanation:

Multiply the equation by the inverse of the coefficient of a.

  5 = (2/5)a

  5(5/2) = (2/5)(5/2)a

  25/2 = a

  12 1/2 = a . . . . written as a mixed number

The solution is 12 1/2.

Answer:

12 1/2

Step-by-step explanation:

Determine the slope of the line that passes through the points: x−8,0,4,5,y,−33,−1,15,19

Answers

Answer:

The equation of a line y = ax + b passes point (-8, -33) and point (0, -1) can be formulated by:

(Note: we do not need all of 4 points, 2 points are enough)

-33 = a x (-8) + b

  -1 = a x 0 + b

From 2nd equation, we have:

b = -1

From 1st equation, we have:

b - 8 x a = -33

=> -1 - 8 x a = -33

=> 8 x a = 32

=> a = 4

=>  The equation of line: y = 4a - 1

Hope this helps!

:)

calculo la superficie de las figuras sabiendo que cada cuadrado mide 5m2

Answers

I think answer is 10 please give me brainlest I hope this helps thanks I appreciate it okay

individual health insurance is usually less expensive than group health insurance
true or false?​

Answers

Answer:

True

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

What is the discount for a iPod that’s $75 dollars but labeled “ save 15% “

Answers

Discount = [tex]\frac{15}{100}[/tex] x 75

               = [tex]\frac{1125}{100}[/tex]

               = $11.25

A clothing company produces denim jeans. The jeans are made and sold with either a regular cut or a boot-cut. To estimate the proportion of all customers in Tacoma, WA, who prefer boot-cut jeans, a marketing researcher examined sales receipts for a random sample of 178 customers who purchased jeans from the firm’s Tacoma store. 56 of the customers in the sample purchased boot-cut jeans. Construct the 99% confidence interval to estimate the proportion of all customers in Tacoma, Washington, who prefer boot-cut jeans and interpret the confidence interval (please write the interval boundaries to THREE decimal places

Answers

Answer:

99% confidence interval for the proportion of all customers in Tacoma, Washington, who prefer boot-cut jeans is [0.225 , 0.405].

Step-by-step explanation:

We are given that a marketing researcher examined sales receipts for a random sample of 178 customers who purchased jeans from the firm’s Tacoma store. 56 of the customers in the sample purchased boot-cut jeans.

Firstly, the Pivotal quantity for 99% confidence interval for the population proportion is given by;

                           P.Q. =  [tex]\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex]  ~ N(0,1)

where, [tex]\hat p[/tex] = sample proportion of customers who purchased boot-cut jeans = [tex]\frac{56}{178}[/tex] = 0.315

           n = sample of customers = 178

           p = population proportion of customers who prefer boot-cut jeans

Here for constructing 99% confidence interval we have used One-sample z test for proportions.

So, 99% confidence interval for the population proportion, p is ;

P(-2.58 < N(0,1) < 2.58) = 0.99  {As the critical value of z at 0.5% level

                                                 of significance are -2.58 & 2.58}  

P(-2.58 < [tex]\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] < 2.58) = 0.99

P( [tex]-2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] < [tex]{\hat p-p}[/tex] < [tex]2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] ) = 0.99

P( [tex]\hat p-2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] < p < [tex]\hat p+2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex] ) = 0.99

99% confidence interval for p = [ [tex]\hat p-2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex], [tex]\hat p+2.58 \times {\sqrt{\frac{\hat p(1-\hat p)}{n} } }[/tex]]

    = [ [tex]0.315-2.58 \times {\sqrt{\frac{0.315(1-0.315)}{178} } }[/tex] , [tex]0.315+2.58 \times {\sqrt{\frac{0.315(1-0.315)}{178} } }[/tex] ]

    = [0.225 , 0.405]

Therefore, 99% confidence interval for the proportion of all customers in Tacoma, Washington, who prefer boot-cut jeans is [0.225 , 0.405].

The interpretation of the above confidence interval is that we are 99% confident that the proportion of all customers in Tacoma, Washington, who prefer boot-cut jeans will lie between 0.225 and 0.405.

Carl pays $45 per month for car insurance. How much does he spend on car insurance in 1 year?

Answers

Answer:

He spends $540

Step-by-step explanation:

literally just 45 multiplied by 12

According to the picture, whats the answer?

Answers

Answer:

84 meters

Step-by-step explanation:

5 x 6 = 30 hypotenuse side not shown

3 x 4 ÷ 2 x 2 = 12 red (both ends)

3 x 6 = 18 green side

6 x 4 = 24 blue side

2 sin^2 + sin x - 3 = 0

Answers

Answer:

x = 2 π n_1 + π/2 for n_1 element Z

or x = π + sin^(-1)(3/2) + 2 π n_2 for n_2 element Z or x = 2 π n_3 - sin^(-1)(3/2) for n_3 element Z

Step-by-step explanation:

Solve for x:

-3 + sin(x) + 2 sin^2(x) = 0

The left hand side factors into a product with two terms:

(sin(x) - 1) (2 sin(x) + 3) = 0

Split into two equations:

sin(x) - 1 = 0 or 2 sin(x) + 3 = 0

Add 1 to both sides:

sin(x) = 1 or 2 sin(x) + 3 = 0

Take the inverse sine of both sides:

x = 2 π n_1 + π/2 for n_1 element Z

or 2 sin(x) + 3 = 0

Subtract 3 from both sides:

x = 2 π n_1 + π/2 for n_1 element Z

or 2 sin(x) = -3

Divide both sides by 2:

x = 2 π n_1 + π/2 for n_1 element Z

or sin(x) = -3/2

Take the inverse sine of both sides:

Answer:  x = 2 π n_1 + π/2 for n_1 element Z

or x = π + sin^(-1)(3/2) + 2 π n_2 for n_2 element Z or x = 2 π n_3 - sin^(-1)(3/2) for n_3 element Z

Match the expressions to their limit values.

Answers

Answer:

Step-by-step explanation:

What would you do to find the arc length around 5/8 of a circle?

Answers

Answer:

5/8 * 2 * pi *r

Step-by-step explanation:

First find the circumference of the circle

C = 2 * pi *r

Then multiply it by the fraction  of the circle  ( arc length) you wish to find

5/8 * 2 * pi *r

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True or False- Protein can act as a energy source If and are the zeros of quadratic polynomial x2 + 3x - 2, find the value of 3 + 3. What is the slope of the line that passes through the points (2, -4) and (5, -6)? Betty saves $161 a month. She saves $141 less each month than Jack. How much will jack save in 2 years? Choose the system of equations that matches the following graph: 3x + 4y = 243x + y = 3 3x + 4y = 243x y = 3 3x 4y = 243x + y = 3 3x 4y = 243x y = 3 Kayla wants to be an active listener. What can she do? A. She can tell people what she knows about their backgrounds. B. She can ask people about their backgrounds . C. She can say she already knows everything about different backgrounds. D.She can write songs about people's backgrounds . Consider the following information. A+ KOH B+ 2 KNO3What is the molecular formula of A, what is the molecular formula for B? You have to balance the A + KOH part of the equation. MM of B = 62.068g/molB is 38.67 % C, 9.67% H and 51.56 % O A rectangular prism has sides of 4 cm, 2.5 cm, and 5.5cm. The figure is dilated by a scale factor of 3.4 cmWhat is the volume of the new prism?cm.What can be concluded about the effect of the changeon the new volume?The new volume is times the original volume.2.5 cm5.5 cm A cardboard box is 18 feet long, 7 feet wide, and 6 inches high. What is the is closest to the volume of the box in cubic YARDS? 20 points 1. The official title of the Marshall Plan was "The __________." United Nations European Union European Recovery Program North Atlantic Treaty Organization 2. The purpose of the Marshall Plan was to rebuild European nations and make them less likely to embrace radical politcal options such as __________. communism democrats fascism republicans 3. In 1948, Congress approved aid payments that totaled nearly __________ dollars. 130 million 13 million 13 billion 13 trillion Multiply Decimals - Tutorial - Level EChoose the correct product.3.2 x 8.54 = ?2732.82.7328273.2827.328 Calculate the pH of 0.65 M H2SO4 (sulfuric acid) solution? (Ka2: 1.1x10-2) The life of a cowboy waserroneously portrayed duringwhat event?A. Barnum and Bailey CircusB. Buffalo Bill's Wild West ShowC. Ringling Brothers ShowD. Deadwood What are the values of a, b, and c in the quadratic equation 0 = x - 3x 2?O : 36 = 3, c= 20 8 = 7 / 0 = -3, c= -2O = 3,0 = 3,C= -2O a = b = -3,c=2 Bob Areebob is a recognized French horn player. Bob has played as a freelance musician for several major symphonies. Last year Bob went through bankruptcy and in order to pay his rent for a couple of months took out loans from a small savings institution - Avarice Bank - and pledged his french horn as collateral. He was unable to make the first payment on the loan so the bank was getting ready to take the french horn for non-payment. Bob approached the director of the Gilroy Philarmonic International Symphony - Joe Dogooder - for help - asking him to guarantee payment so he does not lose his french horn. Joe agreed to guarantee the payment - partially because Bob is scheduled as the featured performer at the Classic Polka Festival in Gilroy which Joe manages. Joe called Avarice Bank and said if Bob could not pay, he would, and Avarice accepted his guaranty by phone. Bob played for the Polka Festival; it was a big hit and very successful, but immediately after, left town with Sally Swansong, the well-known international Polka singer/dancer, and their whereabouts are unknown. Avarice has contacted Joe and indicated they have not collected from Bob and they expect him to pay the debt. 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