A balloon has a circumference of 11 cm. Approximate the surface area of the balloon to the nearest tenth.

Answers

Answer 1

Answer:

1520.5 cm²

Step-by-step explanation:

Surface area of a sphere =

A = 4πr²

= 4 x π x (11)²

= 1520.530844

= 1520.5 cm²


Related Questions

An electrician needs 3/8 of a roll of electrical wire to wire each room in a house. How many rooms can he wire with 2 1/4 rolls of wire? Write your answer as a fraction or as a whole or mixed number.

Answers

Answer: 6 rooms

Step-by-step explanation:

3/8 rolls of wire are needed to wire a room in a house. If there are a total of 2¹/₄ rolls of wires, the number of rooms that could be wired is:

First convert to an improper fraction:

2¹/₄ = 9/4 rolls of wire

Total number of rooms that can be wired are:

= Total amount of wire available / Wires per room

= 9/4 ÷ 3/8

= 9/4 * 8/3

= 72 / 12

= 6 rooms


Which point has coordinates ( -5, -4) ?

Please help ASAP!!! I will give 20 points

Answers

Answer:

Y is your answer

Step-by-step explanation:

pls brainleist

Answer:

point Y

Step-by-step explanation:

The box-and-whisker plot below represents some data set. What percenta data values are less than 66?​

Answers

Given:

The a box-and-whisker plot if a data set.

To find:

The percentage of data values that are less than 66.

Solution:

From the given box-and-whisker plot, it is clear that the number 66  is the highest value of the data set.

It means all the values of the data set are less than 66 and no value can be more than 66.

All value means 100%.

Therefore, 100% of data values are less than 66.

Please help me solve this problem.

Answers

The second option (4,0) and (0,0)
(4,0) and (0,0). the roots are where the parabola meets the x axis.

16x - 77 = 115

What is the answer​

Answers

Answer:

16x-77 add 77 to 115 then divide 115 and 16 and x is your answer

Answer:

The answer is : x=12

Step-by-step explanation:

Move all terms that don't contain the variable x to the right, then solve.

Please give me brainliest if I helped!

Someone please help will mark brainliest!!!

Answers

Answer: 50°

Step-by-step explanation: ur smart, u don’t need one, but if u really want one just comment on it and I’ll give u one :)

D is your answer so

if the value of a in the quadratic function f(x) = ax^2 + bx + c is 1/2, the function will:

Answers

Answer:

Open up and have a minimum

Step-by-step explanation:

If the x² coefficient is:

Positive, the graph will open up and have a minimum

Negative, the gaph will open down and have a maximum

Answer:

opens up and has a minimum

Step-by-step explanation:

Provided a is not 0, y=ax^2+bx+c will be a parabola.

The parabola will open up and have a minimum if a is positive.

The parabola will open down and have a maximum if a is negative.

Since 1/2 is positive, then your parabola opens up and has a minimum.

PLEASE HELP!!!! I will give away 100 pts and Brainliest to correct the answer!

Answers

Answer:

translation by T (x-5 y+0)

Step-by-step explanation:

----------

Answer:

There is not a lot of change, the only change is that is moved 5 units to the right.

Step-by-step explanation:

Hope this helps! :)

Hope you a 100% on the test

PLZZZ HELPZZZZZZZZZZZZZZ

Answers

Answer:

option 1 , not correct

x + 3 > -7

x > -7 - 3

x > -10

x ={ - 9, - 8, - 7 . . .}

option 2, not correct

x - 3 ≤ -7

x ≤ -7 + 3

x ≤ -4

x = { -4, -5, -6 . . . }

option 3, not correct

x - 3 ≥ -4

x ≥ -4 + 3

x ≥ -1

x ={ -1, 0 , 1 , 2 . . .}

option 4, correct

x - 3 ≥ -7

x ≥ -7 + 3

x ≥ -4

x ={ -4, -3, -2 , -1 , 0 , 1 , 2. . . }

√48m^4 n^3 p^4
simplify square roots

Answers

Answer:

4m^2np^2√3n

Step-by-step explanation:

hey! please help i’ll give brainliest

Answers

Answer:

true

Step-by-step explanation:

hey! i’ll give brainliest please help!

Answers

Answer:

eastern

Step-by-step explanation:

Answer:

Eastern!

Step-by-step explanation:

s

hey guys, can someone tell me the answer for this question?
[tex] \sqrt[2]{24 + 12} \: \times \sqrt{ {6}^{4} } \times {5}^{2} [/tex]

Answers

Answer:

root 24+12 is root 36 which is equal to 6

4 root of 6 is 36 the power of 2 which is equal to 36

5 the power of 2 is 25

then when we multiple 6x36x25

it's 5400

Answer:

Answer = 1080

Step-by-step explanation:

Hey there!

Here's the initial equation:

[tex]\sqrt{24+12} * \sqrt{6^4 * 5^2}[/tex]

What I'll do now is sum what's in the left root.

[tex]\sqrt{36} * \sqrt{6^4 * 5^2}[/tex]

Since [tex]\sqrt{36}[/tex] = 6, we get this equation:

[tex]6 * \sqrt{6^4 * 5^2}[/tex]

Now: You can see that the five is elevated to the second. Since it is a square root, you can just pop it out:

6 * [tex]5\sqrt{6^4}[/tex]

6 * 5 = 30, so here's what you got:

[tex]30\sqrt{6^4}[/tex]

At this point you should see that:

[tex]6^4[/tex] = 6 * 6 * 6 * 6

6 * 6 * 6 * 6 = 36 * 6 * 6

36 * 6 * 6 = 36 * 36

36 * 36 = 36²

Now you have this:

[tex]30\sqrt[2]{36^2}[/tex]

Since it is a square root and a square number, you can do just as with the five: Pop it out! (When you take numbers out of the root they multiply, they do not add. Never forget that ;).

30 * 36 = 1080

Answer = 1080

Which expression represents the phrase "15 less than the current amount"?
A 15-n
B n plus 15
C n-15
D n divided by 15

Answers

Answer:

C is the answer n is the current amount your just taking way 15

hope this helps

have a good day :)

Step-by-step explanation:

If you went to a dinner with 4 choices of appetizers, 5 main courses, and 2 desserts... the
number of meal options is an example of......

1.Counting Pr inciple
2.Permutation
3.Combination

Answers

Answer:

1. counting principle

Step-by-step explanation:

-----

In the circle shown below, AB= 30 and the length of the minor arc from

point A to point C is 40. Find the exact measure of the marked angle B in

terms of radians. Justify.

Answers

Answer:

4/3pi

Step-by-step explanation:

Length of an arc  = r theta

Given radius r = 30

length of arc  l = 40

Substitute

40 = 30theta

theta = 40/30

theta = 4/3 pi

Hence the angle marked B is 4/3pi

Can someone help solve this?

Answers

Answer:

C

Step-by-step explanation:

find the measure of angle H in the photo above

Answers

Answer:

H = 31 degrees

Step-by-step explanation:

To find the value of the angle marked H, we will use he circle angle theorem

We have it that;

H = (88-26)/2

H = 62/2

H = 31 degrees

Which equation is represented by the graph below?

Answers

It’s C cuz, I got you homie


A cookie recipe calls for 3 cup of chocolate chips for every batch, and the baker can mix and
bake a batch every of an hour. How many cups of chocolate chips would the baker use if he
baked cookies for 6 hours?

Answers

Answer:

i think 18

Step-by-step explanation:

bc like 3 cups-1 hour

6 cups- 2 hours

...... .........


anyone know how to do this

Answers

Answer:

Step-by-step explanation:

∠CBD=1/2×88=44°

Which line on the graph represents the equation y + 4 = -2x/3

Answers

Answer:

The answer is line D

Step-by-step explanation:

Which could be the area of one face of the rectangular prism? Select three options.

6 cm

4 cm
11 cm
20 cm
24 cm²
44 cm
66cm​

Answers

Answer:24²

Step-by-step explanation: 6cm × 4 cm = 24² cm

Explain why 0.25 ×0.4 has only one decimal in the product

Answers

Answer: Because a decimal times a decimal is always going to be smaller than the original decimal.

Step-by-step explanation:

Angel lives 3/4 miles from school he has already walked 1/6 mile. How much farther does angel need to walk to school

Answers

Answer:

7/12 miles

Step-by-step explanation:

3/4 and 1/6

find common denominator

9/12 and 2/12

subtract

7/12

when you divide the 3/4 and 1/6 you get 4.5

Please help will Mark brainliest

Answers

Answer:

3.v-4=6

v=6+4

v=10

6.y-32=-1

y=-1+32

y=31

9.-1=t+(-19)

-1=t-19

-1+19=t

18=t

12.u+(-5)=-15

u-5=-15

u=-15+5

u=-10

15.47=w-(-8)

47=w+8

47-8=w

39=w

21.18f=-216

f=-216/18

f=-12

24.96=-24a

96/-24=a

-4=a

27.-84=d/3

-84*3=d

-252=d

30.81=1/6*n

81=n/6

81*6=n

486=n

33.5/9*p=-10

5p=-10*9

p=-90/5

p=-18

If each triangle is the right Triangle yes or no?

Answers

Answer:

This is not a right triangle

Step-by-step explanation:

right triangle has a 90° angle and this triangle does not have a 90° angle

Jayden has $20.56. He buys an apple for $0.79 and a granola bar for $1.78. How much money does Jayden have now? A
$2.57

B
$17.99

C
$18.01

D
$23.13

Answers

The answer to this is b

Answer:

B:

$17.99

Step-by-step explanation:

Add the total amount spent: $0.79 (apple)+ $1.78 (granola bar)=$2.57

Subtract from the money Jayden has: $20.56-$2.57=$17.99

Hope This Helps!!

https://www.blooket.com/play?id=658244

Copy and paste
All right answers
Appropriate names please!!

Answers

Answer:

ok

Step-by-step explanation:

Find the area of this circle. Use 3.14 for pi . the circle is 72 in

Answers

Answer:

16277.76 in

Step-by-step explanation:

area

[tex]\pi \times {72}^{2} [/tex]

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