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
Natali5045456 [20]
3 years ago
9

A balloon has a circumference of 16 cm. Use the circumference to approximate the surface area of the balloon to the nearest squa

re centimeter.
804 cm2

326 cm2

256 cm2

81 cm2
Mathematics
1 answer:
drek231 [11]3 years ago
3 0

Answer:

The answer is 256 cm 2.....

You might be interested in
How do I solve this?
anyanavicka [17]

Answer:

Step-by-step explanation:

Slope= -3/1

plot from point  (-2,4)

3 0
3 years ago
Read 2 more answers
I really need help please
Anna [14]

Answer:

a kite

Step-by-step explanation:

because the question asks what special quadrennial is formed  by connecting the midpoints

8 0
3 years ago
The coordinate of centroid of a triangle whose vertices are (1,3,-2), (4,5,0), (6,3,9) is = ……………….
Dominik [7]

Answer:

C = (\frac{11}{3},\frac{11}{3},\frac{7}{3})

Step-by-step explanation:

Given

(x_1,y_1,z_1) = (1,3,-2)

(x_2,y_2,z_2) = (4,5,0)

(x_3,y_3,z_3) = (6,3,9)

Required

Determine the coordinates of the centroid

Represent the coordinates with C.

C is calculated as follows:

C = (\frac{1}{3}(x_1+x_2+x_3),\frac{1}{3}(y_1+y_2+y_3),\frac{1}{3}(z_1+z_2+z_3}))

Substitute values of x and y in the given equation

C = (\frac{1}{3}(1+4+6),\frac{1}{3}(3+5+3),\frac{1}{3}(-2+0+9}))

C = (\frac{1}{3}(11),\frac{1}{3}(11),\frac{1}{3}(7}))

C = (\frac{11}{3},\frac{11}{3},\frac{7}{3})

<em>The above is the coordinate of the centroid</em>

8 0
3 years ago
A chemical company makes two brands of antifreeze. The first brand is 20% pure antifreeze, and the second brand is 70% pure anti
andre [41]

Answer:

First brand of antifreeze: 21 gallons

Second brand of antifreeze: 9 gallons

Step-by-step explanation:

Let's call A the amount of  first brand of antifreeze. 20% pure antifreeze

Let's call B the amount of second brand of antifreeze. 70% pure antifreeze

The resulting mixture should have 35% pure antifreeze, and 30 gallons.

Then we know that the total amount of mixture will be:

A + B = 30

Then the total amount of pure antifreeze in the mixture will be:

0.2A + 0.7B = 0.35 * 30

0.2A + 0.7B = 10.5

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -0.7 and add it to the second equation:

-0.7A -0.7B = -0.7*30

-0.7A -0.7B = -21

-0.7A -0.7B = -21

               +

0.2A + 0.7B = 10.5

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

-0.5A = -10.5

A = \frac{-10.5}{-0.5}

A = 21\ gallons

We substitute the value of A into one of the two equations and solve for B.

21 + B = 30

B = 9\ gallons

3 0
3 years ago
Answer the question. Show work
RideAnS [48]
We just need to get the perimeter of the backyard.

Whole rectangle: length = 7ft ; width = 5 ft

Perimeter = 2(7+5) = 2(12) = 24 ft


7 0
3 years ago
Other questions:
  • Square root of 361x^7​
    6·1 answer
  • Kim's softball team was playing in the championship game. When there were
    8·1 answer
  • The safe load, L, of a wooden beam of width w, height h, and length l, supported at both ends, varies directly as the product of
    5·1 answer
  • A bakery is 4 cups of flour to make 5 batches of brownies he use how many cups of flour to make one batch
    12·1 answer
  • A professor holds office hours during final exam week and discovers much to his dismay that his sudden popularity affords him li
    9·1 answer
  • Bill spent a total of $35 at the grocery store. Of this amount, he spent $28 on fruit. What percentage of the total did he spend
    12·1 answer
  • A grocery store recently sold a bag of peanuts for $0.76 and a bag of pistachios for $3.68. At the end of that day, 50 bags of p
    7·1 answer
  • Describe the pattern in each sequence and determine the next term of the sequence.
    6·1 answer
  • Evaluate 8(6+5)/2²+6(2)​
    5·2 answers
  • What is the slope-intercept form of the linear equation 4x + 2y = 24?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!