The lateral area of a cone is 19.2π in2. The radius is 2.4 in. Find the slant height.

Answers

Answer 1

The slant height of a cone with lateral surface are of 19.2π inches squared and radius of 2.4 inches is 8 inches.

Lateral surface area of a cone

The formula for the lateral surface area of a cone is described as follows:

Lateral area = πrl

where

r = base radiusl = slant height

Therefore,

Lateral area = 19.2π inches²

r = 2.4 inches

Lateral area = π × 2.4 × l

19.2π = 2.4πl

divide both sides by 2.4π

l = 19.2π / 2.4π

l = 8 inches

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Related Questions

A rectangular shape of dimension 95 m by 75 is drawn to a scale 1cm to 10m. Find the area of the drawing.

Answers

Scaled dimensions

95/10=9.5cm75/10=7.5cm

Area:-

Length ×Breadth9.5(7.5)71.25cm²

The area of the drawing is 71.25 square cm.

What is Area of Rectangle?

The area of Rectangle is length times of width.

The actual dimensions of the rectangle are 95 m by 75 m.

The drawing is made to a scale of 1 cm to 10 m, which means that each centimeter on the drawing represents 10 meters.

Let us find the area of the drawing

First calculate the area of the rectangle in real life, and then scale it down using the ratio of 1 cm to 10 m.

The area of the rectangle in real life is:

95 m × 75 m = 7125 square meters

To scale this down to the drawing, we need to divide both dimensions by 10.

The area of the drawing is

(95 m / 10) × (75 m / 10)

= 9.5 cm × 7.5 cm

= 71.25 square cm

Therefore, the area of the drawing is 71.25 square cm.

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Which is the equation for line B?
A. y= 4/3x
B. y=3/4x
C. y=3/2x

Answers

Answer:

b. y = 3/4x

Step-by-step explanation:

you can count it on the graph or use the slope formula

The answer is B. y=3/4x

Pythagorean theorem. Show your work!
Please help in really stuck!!

Answers

Answer:

[tex]\sqrt{29[/tex]

Step-by-step explanation:

Pythagorean theorem is a^2 + b^2 = c^2. "a" and "b" represent the side lengths QR and PR, while "c" represents the hypotenuse PQ.

Let's plug in these values:

2^2 + 5^2 = c^2

4 + 25 = c^2

29 = c^2

sqrt 29 = c

Therefore "c" is the square root of 29.

Answer:

My answers is basically 29^2 or [tex]\sqrt{29}[/tex]

Step-by-step explanation:

Im stuck on this problem. Please explain how you got your answer​

Answers

The function [tex]y=0.3^x[/tex] represents exponential growth with the initial value equal to 1, the decay factor equal to 0.3, and the rate equal to 0.7.

Population Growth Equation

The formula for the Population Growth Equation is:

[tex]P_f=P_o*(1+\frac{R}{100}) ^t[/tex]

           

Pf= future population

Po=initial population

r=growth rate

t= time (years)

growth or decay factor =  (1 ±r)

When 1+R  > 1, the equation represents growth, while 1+R < 1 the equation represents decay.

The question gives:

[tex]y=0.3^x[/tex], then

Pf=y

Po= 1  

[tex](1+\frac{R}{100}) =0.3[/tex] , thus

[tex](100+R}) =30\\ \\ R=-100+30\\ \\ R=-70[/tex]

r= -70%= -0.7

decay factor= (1-0.7)=0.3

Therefore,

1+R will be = 1+(-0.7)=1 - 0.7 =0.3

When 1+R >1, the function represents exponential growth.

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I need help on this ​

Answers

Answer:

a) 1/8

b) 8

Step-by-step explanation:

a) 1/2 x 1/2 x 1/2 = 1/8

b) since the exponent is negative it becomes positive when placed in the denominator

so 1/2 ^-1 is equal to 1/1 ÷ 1/2 which is equal to 2

therefore, (1/2)^-3 is equal to 2 x 2 x 2 or 8

A triangle has sides with lengths of 9 miles, 12 miles, and 15 miles. Is it a right triangle?

Answers

Answer:

The three sides 9 in, 12 in, and 15 in do represent a right triangle. Since the square of the hypotenuse is equal to the sum of the squares of the other two sides, this is a right triangle.

Step-by-step explanation:

15² = 9² + 12²

225 = 81 + 144

225 = 225

so it is an right angled triangle....

( using : if the sum of the squares of the smaller two sides is equal to the square of the largest side, then the traingle is a right triangle.)

Can you help me with this one

Answers

Answer:

??

Step-by-step explanation:

pls type the question properly have a good day:-)

b) If you were to roll the dice 100 times, how often would you expect to get doubles?

Answers

If you're rolling a single cube, then ...

-- There are 6 possible out comes.

-- One of them (5) is a multiple of 5 .

-- The probability of rolling it is (1/6) = 16-2/3 % .

If everything is acting perfectly random, then ion 100 rolls,

you'd expect to succeed 16 or 17 times.

If you're rolling a pair of cubes, then ...

-- There are (6 x 6) = 36 possible outcomes.

-- There are seven ways to get a multiple of 5.

(1+4),  (4+1),  (2+3),  (3+2),  (4+6),  (6+4),  (5+5)

-- The probability of rolling one of those is

                                                            (7/36) = 19-4/9 % .

If everything is acting perfectly random, then in 100 rolls,

you'd expect to succeed 19 or 20 times.

A tree is 7 feet tall. If it grows 9 inches each year, how tall will the tree be in 10 years

Answers

Answer:

174 in.
14.5 ft.

Step-by-step explanation:

1. 7ft = 84in

2. 9in x 10 = 90

3. 84in + 90in = 174 in

Jorden has $275 in his bank account. The bank will pay Jorden 4% interest per year on the value of his account. If Jorden doesn’t add to his account or withdraw any money, how much will he have in his account after one year?

Answers

Answer: $11.00



Step-by-step explanation: Please see attached PDF.



Describe another way you can find 18 = 3.​

Answers

Answer:

divided by 3 on both sides

i need help 9th grade math

Answers

(f + g)(x) is another way of writing f(x) + g(x).

Given that

(f + g)(x) = 10x + 7

f(x) = 6x + 2

it follows that

g(x) = (f + g)(x) - f(x)

g(x) = (10x + 7) - (6x + 2)

g(x) = 4x + 5

g(x) be n

Now

n+6x+2=10x+7

Interchange x

n+2=10x-6x+7n+2=4x+7n=4x+7-2n=4x+5

Option D

Kevin works 2 hours more than emily each time they work together. Using this information, complete the table

Answers

If Kevin works two more hours than Emily, the correct number of hours that complete the table are 6, 5, 8, and j.

How many hours do Kevin and Emily work?

The number of hours can be expressed as:

The number of hours Emily works = K - 2 or the number of hours Kevin works minus 2.The number of hours Kevin works = E + 2 or number of hours Emily works plus 2.

What are the missing numbers?Emily = Kevin4 hours = 6 hous (E+2)5 hours (K-2) = 7 hours 6 hours = 8 hours (E+2)h= j (E+2)

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Give me full working and explanation! And I give you stars and I mark you as brainliest for sure. Best deal here. ​

Answers

1st clock timing

1 : 15

2nd clock timing

2 : 00

3rd clock timing

3 : 30

4th clock timing

4 : 45

30.

formula for discount: original price - final price

discount: $700 - $505.75 = $194.25

In percentage:

[tex]\rightarrow \sf \dfrac{194.25}{700} *100[/tex]

[tex]\rightarrow \sf 27.75\%[/tex]

ii)

3($194.25) = $582.75 discount

In percentage: same. 27.75%

Steve drove 130 miles from Portland to Tacoma in 2 hours. If he continues to drive at the same speed, how long will it take him to drive 390? IS IT PROPORTIONAL

Answers

4 hours sorry if it is wrong

Can someone help me please?

Answers

Answer:

[tex]\bold{ \sf \theta = \dfrac{\pi }{9} , \ \ \dfrac{2}{9} \pi , \ \dfrac{7 \pi }{9}, \ \ \dfrac{8\pi }{9}, \ \dfrac{13\pi }{9}, \ \dfrac{14\pi }{9}}[/tex]

Explanation:

[tex]\dashrightarrow \ \ \sf 2sin(3\theta) = \sqrt{3}[/tex]

[tex]\dashrightarrow \ \ \sf sin(3\theta) = \dfrac{ \sqrt{3}}{2}[/tex]

[tex]\dashrightarrow \ \ \sf 3\theta = sin^{-1}(\dfrac{ \sqrt{3}}{2})[/tex]

[ your calc should be in radian mode [R] ]

[tex]\dashrightarrow \ \ \sf 3\theta = \dfrac{\pi }{3} , \ \ \dfrac{2}{3} \pi , \ \ \dfrac{7 \pi }{3}, \ \ \dfrac{8\pi }{3}, \ \dfrac{13\pi }{3}, \ \dfrac{14\pi }{3}[/tex]

[tex]\dashrightarrow \ \ \sf \theta = \dfrac{\pi }{9} , \ \ \dfrac{2}{9} \pi , \ \ \dfrac{7 \pi }{9}, \ \ \dfrac{8\pi }{9}, \ \dfrac{13\pi }{9}, \ \dfrac{14\pi }{9}[/tex]

4. Solve the inequality and graph the solution. Show work
3k > 5k + 12

Answers

Answer:

Your answer is k< -6

Step-by-step explanation:

Need help with this math question

Answers

Answer:

SAS

Step-by-step explanation:

The sides are equal on the same side

the angles are also equal

and the other sides too

Pls help!!!!!!!!!!!!!!!!!!!!!!!

Answers

C (-4, 0). That's the right answer!

Is this triangle acute, right or obtuse?

Answers

Answer:

acute

Step-by-step explanation:

Check using the Pythagorean Theorem:

A^2 + B^2 ≟ C^2

9^2 + 115 ≟ 11^2

196 > 121,

so this triangle is acute because the sum of each leg squared is longer than the length of the hypotenuse squared.

A can of vegetables is 4.5 in. high and has a diameter of 3 in. Find the volume of the can to the nearest tenth of a unit. Use 3.14 for π.

Answers

Answer:

i dont know i tried really really hard i wish i could help

Step-by-step explanation:

please help!! i'll give a brainliest

Answers

Answer:

Answer is -1

have a nice hope it helps.

y’all please help!!! gradpoint & will give lotsss of points :((

Answers

Answer:

f(-8) = 64

Step-by-step explanation:

Given conditions :

f(x) = { x², if x < 0}or f(x) = {∛x, if x > 0}

We have x = -8

⇒ It follows x < 0

Therefore, substituting x = -8 in the function :

f(-8) = (-8)²f(-8) = 64

The yearbook club had a meeting. The meeting had 8 people, which is one-fourth of the club. How many people are in the club?

Answers

Answer:

32

Step-by-step explanation:

Since we know 8 = 1/4

We can convert the 1/4 into a percentage:

8 = 25%

To get to 100% which is the full club we have to multiply both sides by 4:

8×4 = 25% ×4

32 = 100%

So there are 32 people in the club.

1.5 = 0.25 + g

solve the equation and find the value of the variable

Answers

Answer:

its easy it should be 1.25 or well that the answer I got

find a polynomial equation of the lowest degree with rational coefficients whose one root is (cbrt 2 + 3*cbrt 4)

Answers

Answer:

poly Gon have [tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex][tex] \huge\color{blue}{ \rule{1pt}{999999pt}}[/tex]

Joel borrowed $18,000 for 6 years at simple interest to purchase a vehicle. If Joel repaid a total of $20,953.80, at what rate did he borrow the money?

Enter the percent with the percent symbol. If the percent is not a whole value, enter it as a decimal where the last digit is not zero and there is a zero before the decimal point for values less than 1. For example, if the answer is .35%, 0.35% should be entered. Round the percent to the nearest thousandth of a percent if needed.

Answers

[tex]~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$20953.80\\ P=\textit{original amount deposited}\dotfill & \$18000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\dotfill &6 \end{cases} \\\\\\ 20953.80=18000[1+(\frac{r}{100})(6)]\implies \cfrac{20953.80}{18000}=1+\cfrac{6r}{100}[/tex]

[tex]\cfrac{20953.80}{18000}=\cfrac{100+6r}{100}\implies \cfrac{2095380}{18000}=100+6r\implies \cfrac{11641}{100}=100+6r \\\\\\ \cfrac{11641}{100}-100=6r\implies \cfrac{1641}{100}=6r\implies \cfrac{1641}{600}=r \\\\\\ \cfrac{547}{200}=r\implies \stackrel{\%}{2.735} = r[/tex]

P varies inversely with Q, and P=12 when Q=8. Find P when Q=3.

Answers

Answer:

32

Step-by-step explanation:

Given :

P ∝ Q⁻¹ or P ∝ 1/Q

Finding the propotionality constant

P = k/Q12 = k/8k = 12 * 8 = 96

Finding P in Case (ii)

P = k/QP = 96/3P = 32

someone please help i literally have no idea how to do this

Answers

Answer:

I don't know if this is all the way right but I hope it is.

Step-by-step explanation:

Step 1.

Put the data in order to find the median.

Median = 72

Find the Lower Quartile and the Upper Quartile. These are the medians of the lower and upper halves.

Lower Quartile = 66

Upper Quartile = 79

Next put those points on your number line and mark your smallest and

greatest values, the median, and the Quartiles.

ANSWER ASAP, ILL GIVE BRAILIEST

Which measurement goes from one outside edge all the way across to the other outside edge?

Diameter
Circumference
Radius

Answers

Answer:

circumference

Step-by-step explanation:

circumference shows us how sowmthing goes around. like have you ever been to the doctor and they said theyre checking a babys head circumference? theyre checking it all over.

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