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
kodGreya [7K]
3 years ago
9

The paper cup is 9 cm tall and the circular opening has a radius of 2.5 cm.

Mathematics
1 answer:
Tema [17]3 years ago
4 0

Answer:

181cm^2

Step-by-step explanation:

The minimum amount of paper needed to make the cup to the nearest whole number will be = to the surface area of the cylinder = A=2πrh+2πr2.

Where π= 22/7, r = 2.5cm, h = 9cm

A = 2×22/7×2.5×9+2×22/7×2.5×2.5

A= 141.428+39.285

A= 180.713

A = 181cm^2

You might be interested in
1. Do you the following side lengths form a right triangle?2. Which measurement is closest to the value of X in centimeters?
koban [17]

Answer:

Part 1:

Yes, the side lengths form a right triangle.

Part 2:

Option d 37.1 cm

Explanation:

We need to use the pythagorean theorem.

In part 1, if the 3 side lengths are a right triangle, then, they must verify:

7.5^2=4.5^2+6^2

By the theorem. Then:

\begin{gathered} 7.5^2=56.25 \\ 4.5^2+6^2=20.25+36=56.25 \end{gathered}

They're equal, then the lengths correspond to a right triangle.

For part 2, we need to use again the theorem. In this case:

\begin{gathered} 12^2+x^2=39^2 \\ x=\sqrt{1521-144} \\ x=\sqrt{1377} \\ x\approx37.1cm \end{gathered}

6 0
1 year ago
What is the midpoint of (-2,3) and (10,3) *simple answer please
Allushta [10]

The "midpoint formula" is the same as the "average formula:"

x-coordinate of the midpoint = average of -2 and 10:

= (-2 + 10) / 2 = 4


y-coordinate of the midpoint = average of 3 and 3:

= (3+3) / 2 = 3

Thus, the midpoint of the given line segment is (4,3).


5 0
3 years ago
Which matrix represents the system of equations shown below?
Leona [35]

Answer:

121-22

Step-by-step explanation:

7 0
3 years ago
Which shows the correct substitution of the values ab and c from the equation 0 = - 3x ^ 2 - 2x + 6 into the quadrati formula?
scZoUnD [109]

The answer would look something like this:

\frac{2+-\sqrt{2^{2}-4(-3)(6) }}{2(-3)}

There could also have a simplified version.

I hope this helps.

7 0
3 years ago
Solve for m.<br><br> 774 = m − 15
lyudmila [28]

Answer:

m = 789

Step-by-step explanation:

774 = m - 15 \\ 774 + 15 = m \\ 789 = m

hope this helps

brainliest appreciated

good luck! have a nice day!

6 0
3 years ago
Read 2 more answers
Other questions:
  • The measure of an angle is 51°. What is the measure of its complement? A. 39° B. 49° C. 129° D. 139°
    15·1 answer
  • WRITE THE FRACTION WITH THE GREATEST VALUE <br> <br> 3. 1/8 , 5/12 , 9/10
    5·2 answers
  • Mrs. Harrison has a jar full of cookies.
    13·2 answers
  • Mrs. DeMarco wants to estimate the height of her garage
    5·1 answer
  • A bundle with one pack of pencils and one pack of pens. If a package of pens cost $2.50and I bought 3 bundles spending a total o
    9·1 answer
  • Joianie beleives that you cannot use cross products to solve the proportion 50/3 = 75/x for x. She says
    10·1 answer
  • If you multiply the length times the width you get the of the prism base.​
    8·1 answer
  • gabby's piggy bank contains dimes and nickels worth $6.40. If she has 84 coins in all, how many of each does she have?
    15·1 answer
  • The additive invers of the numer <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B7%7D%20" id="TexFormula1" title=" \fr
    14·1 answer
  • 17
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!