Mathematics College

Please help me fast!

Find the surface area of this cone. Show your work.

Please Help Me Fast!Find The Surface Area Of This Cone. Show Your Work.

Answers

Answer 1

Answer:

The answer is 628 meters.

Step-by-step explanation:

The area for surface of a cone is pi times the radius (radius plus the square root of the height squared plus the radius squared).

Lol, i know this is really confusing, just look up surface area of a cone formula.

Height squared = 15 * 15 = 225

Radius squared = 8 * 8 = 64

225 + 64 = 289

The square root of 289 is 17

17 + 8 = 25

3.14 * 8 = 25.12

25.12 * 25 = 628 meters.

Could I get Brainliest please?!?!

Related Questions

Cynthia is mowing lawns for extra money. The amount of money she made after putting gas in the lawnmower is shown below.

Cynthia's Mowing
Money Made in Dollars 37 77 117 157
Number of Lawns 2 4 6 8

A.
The amount of money Cynthia made is the product of the number of lawns she mowed and 20 minus 3.
B.
The amount of money Cynthia made is the 35 more than the number of lawns she mowed.
C.
The amount of money Cynthia made is the 35 less than the number of lawns she mowed.
D.
The amount of money Cynthia made is the product of the number of lawns she mowed and 20 plus 3.

Answers

Answer:

a

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

The amount of money Cynthia made is the product of the number of lawns she mowed and 20 minus 3.

Angle Relationships

Solve the following right triangle

Determine all the missing sides and angles

a.
BC = 5cm
AC = 4cm
∠B = 27°
∠C = 90°
b.
BC = 4.8cm
AC = 3.6cm
∠B = 37°
∠C = 180°
c.
BC = 4cm
AC = 3cm
∠B = 127°
∠C = 180°
d.
BC = 4.8cm
AC = 3.6cm
∠B = 127°
∠C = 180°

Please select the best answer from choices provided

Answers

Answer:

B.

   BC = 4.8cm

   AC = 3.6cm

   ∠B = 37°

   ∠C =90°

Step-by-step explanation:

I calculated it logically

Answer:

B

Step-by-step explanation:

Edg told me

Identify the terms,like terms,coefficient and constants

Answers

Terms: -4j, -2, -5j, 6
Like Terms: -4j and -5j, -2 and 6
Coefficients: -4, -5
Constants: -2, 6

200 points


What is the value of B and P for the following triangular prism?




30 ft 2

48 ft 2

72 ft 2

24 ft 2

Answers

Answer:

48 ft 2

Step-by-step explanation:

PLEASE HELP
2n-200 but n = 150

Answers

Answer:

Just plug in where n is= 150 then solve the answer is 100

Step-by-step explanation:

2(150)-200

The answer is 100
N=150
So 2 times 150 is 300
300 minus 200 is 100

Help me please this is very hard i got 8ft but it said I was wrong!?

Answers

Answer:

is the answer 200/3 Or 66.667 ft

16 In a flower fertilisation experiment, the
number of pink flowers grown is twice that
of red flowers. The number of white flowers
grown is 3 more than that of red flowers.
The number of white flowers grown is
37 fewer than that of pink flowers. Find the
total number of flowers grown.​

Answers

Answer:

The total number of flowers grown is 163.

Step-by-step explanation:

Since in a flower fertilization experiment, the number of pink flowers grown is twice that of red flowers, and the number of white flowers grown is 3 more than that of red flowers, the number of white flowers grown is 37 fewer than that of pink flowers, to find the total number of flowers grown the following calculation must be performed:

P = 2R

W = R + 3

W = P - 37

W = W

R + 3 = 2R - 37

R + 3 + 37 = 2R

40 = 2R - R

40 = R

P = 2 x 40 = 80

R = 40

W = 40 + 3 = 43

80 + 40 + 43 = X

163 = X

Therefore, the total number of flowers grown is 163.

2x27 ÷2+95x4
Help me​

Answers

Answer:

407

Step-by-step explanation:

Using PEMDAS, we get that (2x27) ÷ 2 + (95x4)

54÷2+380

27+380

407

can someone please answer this I need extreme help.
​

Answers

27
To start off you’ll need to separate the shape into different parts to find the area so we have a square and a rectangle. Since 3x3=9 then 2x9=18 so you add them together you will get 27

Answer:

hope this will help you more

What is the product of x2 - 2x +3 and x+1?

Answers

The answer would be 3, 2-2+3, I’m pretty sure.

Which method can you use to prove that the triangles are congruent?

Answers

Answer:

The simplest way to prove that triangles are congruent is to prove that all three sides of the triangle are congruent. When all the sides of two triangles are congruent, the angles of those triangles must also be congruent. This method is called side-side-side, or SSS for short.

sally works at a local cookie store. out of the last 43 cookies sold, 9 were chocolate chip oatmeal. what is the experimental probability that the next cookie sold will be chocolate chip oatmeal. simplified fraction in the form a/b

Answers

Answer:

Step-by-step explanation:

9/43 but simplified is 0.209

an examination started 12.50 pm and lasted for 2 and half hours. at what time did it end​

Answers

Answer:

3: 20 pm

[tex] = > hours = 12 and 2 + 1hour = > 3 \: pm \\ minutes = 30 - 10 = 20 \: minutes \\ it \: ended \: at \: 3 : 20 \: pm[/tex]

Answer:

it ended at 3.20pm

Step-by-step explanation:

12.50 to 1.50 is one hr

1.50 to 2.50 is two hrs

2.50 to 3.20 is two and half hrs

There are 67 rabbits in the garden. Round 67 to the nearest 10.

Answers

Answer:

70

Step-by-step explanation:

1-4 rounds down

5-9 rounds up

70

hope this helps!!!

All else being equal, if you cut the sample size in half, how does this affect the margin of error when using the sample
to make a statistical inference about the mean of the normally distributed population from which it was drawn?
zes
ME=
O The margin of error is multiplied by 0.5
O The margin of error is multiplied by a
O The margin of error is multiplied by 0.5.
O The margin of error is multiplied by 2.

Answers

Answer:

The margin of error is multiplied by 4.

Step-by-step explanation:

Margin of error is:

[tex]M = \frac{zs}{\sqrt{n}}[/tex]

In which z is related to the confidence level, s is elated to the standard deviation and n is the sample size.

From this, we have that the standard deviation is inversely proportional to the square root of the sample size.

If you cut the sample size in half:

The margin of error is inversely proportional to the square root of the sample size, so if you cut the sample size by [tex]\frac{1}{2}[/tex], the margin of error will be multiplied by [tex]2^2 = 4[/tex]

So

The margin of error is multiplied by 4.

The length of a rectangular lot is 6 feet less than 3 times its
width. Its area is 222 square feet.
Its width is
feet and its length is
feet.

Answers

Answer:

Its width is 9.66 feet and length is 22.98 feet.

Step-by-step explanation:

Let l is length and b is width of a rectangular lot.

Length, l = (3b-6) feet

The area of the lot is 222 sq feet.

The area of a rectangle is given by :

[tex]A=lb\\\\222=(3b-6)b\\\\222=3b^2-6b[/tex]

It is a quadratic equation. The solution of the above equation is given by :

b = 9.66 feet and -7.66 feet

Neglecting negative answer, the width of the lot is 9.66 feet.

Length, l = (3(9.66)-6) = 22.98 feet

Hence, its width is 9.66 feet and length is 22.98 feet.

4 points
1. In which economic system are the factors of production privately
owned? *
Capitalism
Socialism
Command
O Confucianism
4 points
*
what is the government's role?

Answers

Answer:

Capitalism

Step-by-step explanation:

It's characterised by private ownership of the means of production.

Write the ratio as a fraction in simplest form. Use / for fraction. Do NOT use any labels, and Do NOT type any spaces. Type the fraction only. 2 feet to 20 feet.​

Answers

Answer:

It would be 1/10

Step-by-step explanation:

The ratio is 2:20

To put the ratio in fraction form you simply put 2/20

Then divide the fraction by 2 to get 1/10

How many times greater is the value of 5 in 532,874 than the value of 451,073?​

Answers

Answer:

10 times greater is the value of 5 in 3,590 than the value of 5 in 359.

Step-by-step explanation:

How much more would the value of y be on the graph than its value
in the table when x = 12? (1 point)

Answers

Answer:

180

Step-by-step explanation:

From the table :

Slope :

m = (y2 - y1) / (x2 - x1)

m = (100 - 80) / (5 - 4)

m = 20 / 1

m = 20

y = 20x

Hence, when, x = 12

y = 20 * 12

y = 240

From the graph:

Slope :

m = (y2 - y1) / (x2 - x1)

m = (280 - 70) / (8 - 2)

m = 210 / 6

m = 35

y = 35x

When x = 12

Graph :

y = 35 * 12

y = 420

Difference :

420 - 240

= 180

PLEASE ANSWER ASAP FOR BRINELST!!!!!!!!!!

Answers

Answer:

D) 400

Step-by-step explanation:

The proportions are .7 + .8 + .8 + .9 = 3.2

3.2/4 = .8 (The average proportion of Blue Balloons)

500 * .8 = 400 blue balloons

Enter the value of 3.5•(7-4.5).
​

Answers

Answer:

8.75

Step-by-step explanation:

3.5(2.5)

Answer:

8.75

Step-by-step explanation:

3.5(2.5)

To rent a certain meeting room a college charges a reservation of $47 and an additional fee of $7.90 per hour the film club wants to spend less than $86.50 on renting the meeting room what are the possible amount of time for which they could rent the meeting room used T for the number of hours in meeting room is rented and solve your inequality for T

Answers

Answer:

9 hours.

Step-by-step explanation:

31 + 5.9*t < 84.10.

To solve it, collect the constant terms on the right side:

5.9*t < 84.10 - 31 = 53.10,

Hence, t < 53.10%2F5.9 = 9 hours.

Please help will give brainlyist

Answers

Number 11
Since the auditorium can hold 600 and the student body will be divide by four parts
The answer is
x ≤ 2400


Can you help on #5 I have to estimate & #5 simple yes or no please thank you

Answers

If you need an estimate for #5, then you can round each value to the nearest whole number to have...

21.6 turn into 2120.9 turn into 2119.4 turn into 1918.5 turn into 19

Add up those values: 21+21+19+19 = 80

-------------------

Another estimate you could do is to round everything to 20, since we're close to this value. Having four copies of 20 added leads to 20+20+20+20 = 80

So they rode a total estimated amount of 80 miles

--------------------

The actual total is:  21.6+20.9+19.4+18.5 = 80.4 miles, which isn't too far off from 80.

01:14:51 A spinner is divided into 8 equal sections, and each section contains a number from 1 to 8. What is the probability of the spinner landing on a number that is greater than 5? 1 13 o colo 100 Next Submit Save and Exit Mark this and return
​

Answers

Answer:

the probability is 3/8

Step-by-step explanation:

Can someone please help me, giving all answers hearts, thank you in advance

Answers

Answer:

D) y=-5/2x; y=-20

Step-by-step explanation:

If y varies directly with x, then y=kx where k is our proportionality constant

Therefore, since y=-5 when x=2, we have -5=k(2) where k=-5/2

This means that when x=8, y=(-5/2)(8)=-20, making choice D correct

50 POINTS !!


PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.


Answers

Answer:

4.123 km

Step-by-step explanation:

a squared = c sqaured - b squared

a squared = 9 sqaured - 8 squared

a squared = 81 - 64

a squared = 17

a = root 17

a = 4.123 km

Answer:

4.1 it is rounded to the nearest tenth already

help what is the perimeter measured in centimeters of the rectangle pictured below do not include units in your answer

Answers

Answer:

just x both together

Step-by-step explanation:

5) Mrs. Bell went bowling again. Her bowling scores were 100, 172, 85, and 92. She wants
her average to be 115. What does she need to bowl on the next game?

Answers

Answer: She needs to bowl 120 or more on her next game.

Step-by-step explanation:

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