1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marusya05 [52]
1 year ago
13

A balloon has a circumference of 28 in use the circumference to approximate the surface area of the ballon to the nearest square

inch
Mathematics
1 answer:
nikklg [1K]1 year ago
5 0

The surface area of the balloon is 249 in².

<h3>What is the surface area of the balloon ?</h3>

A balloon has the shape of a sphere. The distance round the sphere is equal to the circumference of the sphere.

Circumference of the sphere = 2πr

Where:

  • r = radius
  • π = pi = 22 / 7

Radius - circumference / 2π

28 / ( 2 x 22/7) = 4.45 inches

Surface area of a sphere = 4πr²

4 x 22/7 x 4.45² = 249 in²

To learn more about the surface area of a sphere, please check: brainly.com/question/27267844

#SPJ1

You might be interested in
Will mark brainliest!!!Solve for each variable
Kamila [148]

Answer:

n=5, m = 4

Step-by-step explanation:

It is a parallelogram so m+8 = 3m and 2n-1 = 9

7 0
3 years ago
The equation $y=-4.9t^2+3.5t+5$ describes the height (in meters) of a ball thrown upward at $3.5$ meters per second from $5$ met
Georgia [21]

Answer:

Step-by-step explanation:

The position function is

s(t)=-4.9t^2+3.5t+5 and if we are looking for the time t it takes for the ball to hit the ground, we are looking for the height of the ball when it is on the ground. Of course the height of anything on the ground is 0, so if we set s(t) = 0 and solve for t, we will find our answer.

0=-4.9t^2+3.5t+5 and factor that however you are currently factoring in class to get that

t = -.71428 seconds or

t = 1.42857 seconds (neither one of those is rational so they can't be expressed as fractions).

We all know that time will never be a negative value, so the time it takes this ball to hit the ground is

1.42857 seconds (round how you need to).

4 0
3 years ago
Five more than twice a number is 17.
strojnjashka [21]

Answer:

The answer you are looking for is 6

Step-by-step explanation:

6x2=12 12+5=17

3 0
3 years ago
Read 2 more answers
Gabrielle's age is three times Mikhail's age. The sum of their ages is 56, what is Mikhail’s age?
4vir4ik [10]
Gabrielle's age is 3x (in which x is mikhail's age)
the sum is 56 so 3x+x=56

3x+x=56
4x=56
x=14

since x was mikhail's age, mikhail is 14 years old
6 0
3 years ago
A pair of designer sneakers was purchased for $120.
Brums [2.3K]

Answer:the price now is $128

Step-by-step explanation:

you can get this by dividing the cost by the percentage it has risen by. For example: 120 / 15 = 8 and then you add 8 to the initial price

6 0
2 years ago
Read 2 more answers
Other questions:
  • A washing machine costs £420 plus 20% VAT. Calculate the total cost of the washing machine.
    14·1 answer
  • The equation y=2x+1 represents a function true or false
    9·2 answers
  • Logan is flying a kite that is made yo if three similar rectangles. The sides of the three rectangles are in the ratio 1:2:3. If
    10·1 answer
  • Let f(x)=-5x-1 and g(x)=x^2 4find f(g)(4))
    12·1 answer
  • WILL GIVE BRAINLIEST AND 50 POINTS PLEASE ITS TIMED!!
    7·1 answer
  • What is 29 divided by 11​
    5·2 answers
  • PLEASEEEEEEEEEEEEEEEEEE URGENT
    8·1 answer
  • A new bank costumer with 2500 dollars wants to open a money market account. The bank is offering a simple interest rate of 1.5 p
    15·2 answers
  • Find the volume of the figure.
    12·1 answer
  • The driving distance from Los Angeles to a Chicago is 2,054 mi. The distance from Chicago to Boston is 983 mi. About how many mi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!