Item 9 Find the surface area of the cone with diameter d and slant height l. Round to the nearest tenth. d=12 cm l=85mm

Answers

Answer 1

Answer: [tex]160.28\ cm^2[/tex]

Step-by-step explanation:

Given

diameter of cone [tex]d=12\ cm[/tex]

radius is [tex]r=\frac{d}{2}=6\ cm[/tex]

The slant height of the cone [tex]l=85\ mm\approx 8.5\ cm[/tex]

The surface area of a cone is

[tex]\Rightarrow A=\pi rl[/tex]

Substitute the value

[tex]\Rightarrow A=\frac{22}{7}\times 6\times 8.5=160.28\ cm^2[/tex]


Related Questions

Is this a function or not a function? Explain why.

Answers

Answer:

this is not a function

Step-by-step explanation:

the bottom numbers need to connect

Answer:

ppl are stubborn they put random stuff ty for wasting my points im getting them back

Step-by-step explanation:

If the length of a rectangle is 16 cm and breadth is 7 cm, the area in square centimetres will be

Answers

Answer:

the answer is 112 mate hope u got ur answer

it would be 112 cm2 hope this helps

HELLP ILL GIVE BRAINLYEST Each side of a square classroom measures 23 feet. The teacher wants to put a border around the top of the classroom that costs $1.12 per foot. How much will the border cost?

Answers

Answer:

Step-by-step explanation:

4(23ft)($1.12/ft)=$103.04

Beth took out a 12-year loan for $35,000 for a new pool. If the interest rate is 10.2%, how much will she pay in interest?​

Answers

Answer:

35000×10.2%=3570 Interest will be paid

35000+3570=38570 full amount will be paid in the bank

She will pay 42,840 because u would multiply (35000)(0.102)(12)

Is this a proportional relationship

Answers

Answer:

N o

Step-by-step explanation:

No it’s not because if it was you would be able to divide

Help me please!! ;okxjda.sdfajskndmf

Answers

Answer:

133

Step-by-step explanation:

2(_9)^2=162

3(-9)=-27

2(-9)^2 +3(-9)-2= 162-27-2=133

I'm doing my homework and I forgot how to do these

Answers

Answer:

9 - 15/2

10 - 9

11 - 16/3

12 - 5/6

Step-by-step explanation:

Find 2y-6= -6x in slope intercept form and find the slope and y-intercept. ​

Answers

Answer:

slope=-3

y-intercept=(0, 3)

HELPP I WILL BE GIVING BRAINLIEST

Answers
a) 45 degrees
b)180 degrees
c)60 degrees
d)90 degrees

Answers

Answer:

Hi! I believe its 90 degrees because it forms a right angle.

Step-by-step explanation:

Answer:

d)90 degrees i think it is that one

SOMEONE PLEASE HELP ANSWER CORRECTLY !!!!! WILL MARK BRIANLIEST !!! HELPPPPPP MEEEEEEE !!!!!

Answers

Answer:

(-2,-3)

Step-by-step explanation:

A=(8,-5)

M=(3,-4)

The difference between them is that m is 5 to the left and 1 up. We need to do the same thing to find B.

B=(-2,-3)

3-4(12 divided by 6)

Answers

Answer:

The answer is -2

Step-by-step explanation:

First we divide 12 by 6.

12/6 = 2

Next we subtract 3 by 4.

3 - 4 = -1

Now we solve.

-1 * 2 = -2

So, the answer is -2.

Hope this helps! :)

Answer:

3

Step-by-step explanation:

Do 12/6 first and you get 2 and then you do 3-4 and you get 1

Is 121,031 divisible by 3?

Answers

Yes but you get a decimal answer

Complete the square in order to solve the following quadratic equation:

x^2 + 6x = −2

Answers

To complete square one is basically doing
a
2
+
2
a
b
+
b
2
=
(
a
+
b
)
2

or
a
2

2
a
b
+
b
2
=
(
a

b
)
2
We can see that
x
2
=
a
2
and
2
a
b
=
6
x
So all we need to condense this into
(
a
+
b
)
2
is a
b
2
term
We know that
2
b
=
6
as
x
=
a

so
b
=
3

and
b
2
=
9
So if we put the
b
2
term in we get
x
2
+
6
x
+
9

9
=
(
x
+
3
)
2

9
We include the
±
9
because we have to net add nothing to the equation so
9

9
=
0
so we really haven't added anything

I dont know how to do this pls help me ​

Answers

Answer:

5) x = 0.75

6) x = 12

Step-by-step explanation:

5)

Use geometric mean of altitude

[tex]12 = \sqrt{x^2 * 16^2} \\12^2 = x^2 * 16^2\\144 = 256x^2\\x = 0.75[/tex]

6)

Use geometric mean of legs

[tex]60^2 = \sqrt{(36+x)^2+36^2} \\3600 = (36+x)^2 + 36^2\\x=12[/tex]

What is the area of this figure?​

Answers

Answer:

[tex]\Huge\boxed {A =859ft^{2} }[/tex]

Step-by-step explanation:

Hello There!

To solve for the area of this figure we need to split the figure into 3 different parts:

A rectangle with a length of 9 ft and a width of 7 ft

a rectangle with a width of 9ft + 7ft and a length of 25 ft

a rectangle with a width of 18 ft and a length of 22 ft

To find the area of a rectangle we use the formula

[tex]A=w*l[/tex] where w = width and l = length

for the first one we plug in the values

A = 9 * 7

9 * 7 = 63 so the area of the smallest rectangle  is 63ft²

Now lets find the area of the larger rectangle

The dimensions are l = 25 ft and w = 9 + 7 (16 ft)

Now we can plug in the values into the area formula

A = 16 * 25

16*25=400 so the area of the larger rectangle is 400 ft²

Now lets find the area of the last rectangle

The dimensions are l = 22 ft and w = 18 ft

now lets plug in the values to the formula

A = 22 * 18 =396

so the area of the last rectangle is 396 ft²

Finally we want to add all of the areas together

396 + 400 + 63 = 859

So the area of the figure is 859 ft²

859ft .................,,,.,,.

Ethan needs to save at least $450 for a new dirt bike. So far, he has saved $165. If wants to use half of his next paycheck for the remaining amount, how much money must he make in his paycheck?

Answers

Answer:

285

Step-by-step explanation:

450-165=285

Hope this helps and is right.

Simplify. Express your answer using positive exponents.
g3g3

Answers

Answer: g^6

Hope this helps :)

Answer:

[tex]g^{6}[/tex]

Step-by-step explanation:

Using the rule of exponents

[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex] , then

g³ × g³ = [tex]g^{(3+3)}[/tex] = [tex]g^{6}[/tex]

I need some help on this

Answers

Answer:

Step-by-step explanation:

Point of intersections of the graph with x-axis are not clear.

Let these points are x = -a, -b and c

Therefore, function representing the graph will be,

f(x) = p(x + a)(x + b)(x - c)

Since, this graph crosses y-axis at (0, -6),

f(0) = p(0 + a)(0 + b)(0 - c) = -6

-pabc = -6

p = [tex]\frac{6}{abc}[/tex]

Therefore, equation of the given function will be,

f(x) = [tex]\frac{6}{abc}(x+a)(x+b)(x-c)[/tex]

Please help me with this please!!

Answers

9514 1404 393

Answer:

  135°

Step-by-step explanation:

In order to answer the question, we must assume that the black lines are parallel to each other.

The given angles (2, 8) are "same-side (consecutive) exterior" angles, so are supplementary.

  ∠2 +∠8 = 180°

  15x +5x = 180°

  x = 180°/20 = 9°

  ∠2 = 15x = 15(9°) = 135°

Angles 2 and 3 are vertical angles, so angle 3 has the same measure as angle 2.

  ∠3 = 135°

The graphs show the audience, in millions, of two TV shows as a function of the episode number. For the first show (top graph) pick two episode numbers between which the function has a negative average rate of change, if possible. Estimate the average rate of change, or explain why it is not possible.

Answers

Answer:

The slope between two points. The rate at which the dependent variable changes with the independent variable. Yes between episode 5 and episode 6

Step-by-step explanation:

Need help on the slope intercept

Answers

Answer: y = 3x+9

Step-by-step explanation:

points are -2,3 and -1,6

6-3/-1-(-2) = 3

y-int is 9 since its given

solve the system of equations by adding. check your answer.​

Answers

Answer:

x+12y=40

Step-by-step explanation:

the question itself says by adding

If the volume of a cube is 4,913 cm³ , then the length of its side is

Answers

Answer:

17

Step-by-step explanation:

I used a caculator...

Give Brillianst Please!!!

For the function f(x)
8 Vas - 8. find / -'(X).
9
+8
of-'() = (9)
O/(x) = 9(+8)
O!'(x) = (18)
Of(x) = 9(2+8)
8
Submit Answer

Answers

Given:

The function is

[tex]f(x)=\dfrac{8\sqrt[3]{x}-8}{9}[/tex]

To find:

The inverse function [tex]f^{-1}(x)[/tex].

Solution:

We have,

[tex]f(x)=\dfrac{8\sqrt[3]{x}-8}{9}[/tex]

Step 1: Putting f(x)=y, we get

[tex]y=\dfrac{8\sqrt[3]{x}-8}{9}[/tex]

Step 2: Interchange x and y.

[tex]x=\dfrac{8\sqrt[3]{y}-8}{9}[/tex]

Step 3: Isolate variable y.

[tex]9x=8\sqrt[3]{y}-8[/tex]

[tex]9x+8=8\sqrt[3]{y}[/tex]

[tex]\dfrac{9x+8}{8}=\sqrt[3]{y}[/tex]

Taking cube on both sides, we get

[tex]\left(\dfrac{9x+8}{8}\right)^3=y[/tex]

[tex]y=\left(\dfrac{9x+8}{8}\right)^3[/tex]

Step 4: Putting [tex]y=f^{-1}(x)[/tex], we get

[tex]f^{-1}(x)=\left(\dfrac{9x+8}{8}\right)^3[/tex]

Therefore, the correct option is C.

Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form.

Answers

Answer:

n=42, m=42[tex]\sqrt{3}[/tex]

Step-by-step explanation:

The side opposite the 30° angle is half the size of the hypotenuse. So, 84/2=42. Now, the side opposite the 60° angle is shown as 84/2 · [tex]\sqrt{3}[/tex], which is the same as 42√3.

What is the slope of y = -4x – 3

Answers

Answer:

-4

Step-by-step explanation:

bc the equation is y=mx+b and m is y/x so -4


Please help !! I will give you brainliest!!

Explain each step you took to solve this question.

Given: Angle ^HMA is bisected by MT.
HT = MT
Find the measure of angle ^MAT.

Answers

Answer:

angle MAT=48

Step-by-step explanation:

angle H = 44

angle M = 88

angle A = 48

triangle HTM is an isosceles triangle which means its other two angles are congruent and to find those two measurements we do (180-92)/2=44MT bisects, meaning split equally in half, so we multiply 44 by 2 and now we have angle measures of H&M180-(H+M)= A

If the equation f(x) = 2* is graphed, which of the following
values of x would produce a value closest to the x-axis?


Answers

Answer:

X=-2

Step-by-step explanation:

Beacuse I got it right

3x +11+7x
Pls help I want to learn this​

Answers

Answer:

3x +7x +11=10x+11

Step-by-step explanation:

Answer:

Step-by-step explanation:

Group like terms:

=3x+7x+11

Add similar elements: 3x+7x=10x

=10x+11

A rectangle has a diagonal of 277 centimeters and a length of 252cm. How long is the width?

Answers

Answer:

width = 115 cm

Step-by-step explanation:

width² = 277² - 252²

width² = 76729 - 63504 = 13225

width = 115 cm

Answer:

115

Step-by-step explanation:

Other Questions
Which type of material incorporates a variety of substances to enhance desired properties such as strength and flexibility? Please give me the correct answer.Only answer if you're very good at math.Please don't put a link to a website. How similar were events in Hungary in 1956 and in Czechoslovakia in 1968? 2 x [8 x 4 + (8)2] - 3 demonstrate how to clean for your nail care The chemical analysis of a compound gave the percentage composition by mass: Carbon 40%, Hydrogen 6.67% and Oxygen 53.3%. The relative formula mass of a compound is 180. What is the molecular formula of this compound? A bird feeder is in the shape of a cylinder. It has a volume of about 100 cubic inches. It has a radius of 2 inches. What is the approximate height of the bird feeder? Use 314 for pi. Factor: 36x^2-64thanks! Question 3 please help :) Need help plz fast ! WILL MARK BRAINLIEST IF YOU SOLVE THIS PLEASE Please help. Will mark brainliest if right!Mrs. Jones was very proud of her apple tree. One autumn, after harvesting her apples, she called her three sons together. Here are 150 apples, she said. I want you to take them to the market tomorrow and sell them for me. She gave Paul 15 apples, Nick 50, and Ben 85. Your job, added Mrs. Jones, is to sell the apples in such a way that each of you brings home the same amount of money. How do they do it? if the store has a sale and all sofas are marked down 45% off . What would be the price of a sofa that was $950. What is another name for the mesopelagic zone, which lies just below the epipelagic, or sunlight zone?A: the midnight zoneB: the coral zoneC: the twilight zoneD: the abyssal zone Select the correct answer.Bart is having a hard time thinking of a strong hook for his persuasive essay. The essay is about why turtles make the best pets. Which idea below is the best hook to use at the beginning of his essay?A. Did you know that having a pet turtle can make you feel happy and even joyful?B. Turtles carry salmonella. This bacteria can cause people to get seriously sick if they dont wash their hands often.C. According to the American Veterinary Medical Association, about 37 percent of American households own a dog. Another 30 percent of households own a cat.D. Young turtles eat protein, such as insects and eggs. As they grow and mature, turtles eat plants and vegetables. Dairy and processed foods can be difficult for turtles to digest.E. Depending on the species that you choose, your pet turtle can live up to 80 years. If youre someone who can handle commitment, a turtle would make the perfect pet. I REALLY Need help ASAP the length of a rectangle is 4 units more than it's width.The area of a rectangle is 25 more than 4 times the width.What is the width of the rectangle the skill and courage of the tuskegee airman served to- On an island near the equator, the sun's energy causes ocean water to evaporate during the day. In the afternoon, heavy rains fall. This process is repeated during the summer months. What does this example best show?How most water on Earth is in the form of water vaporHow land is the main source of water during the water cycleHow the sun is the main source of energy for the water cycleHow the ocean is large enough that it never runs out of water a source of studying modern history is