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Aleksandr-060686 [28]
3 years ago
13

What is the formula for a cylinder and a circle?

Mathematics
1 answer:
matrenka [14]3 years ago
4 0
The surface area of a right cylinder equals 2 \pi rh+2 \pi r^2

As you can see in the attached picture, the surface area consists of two equal circles (bottom and top one) and area that would look like a rectangle, if "unraveled".

The formulae for the surface area of the circle is \pi r^{2}. You have to multiply it by two and add to the area of the "rectangle", which equals 2 \pi rh where 2 \pi r is the circumference of the circle and h is the height of the cylinder.



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Mrs. Benton is making treat bags for her class. She has 245 Chocolate Twisters. If she puts 9 Chocolate Twisters in each treat b
Alex17521 [72]

Answer:

She can make 27 bags

2 pieces of candy is left over

Step-by-step explanation:

She has 245 Chocolate Twisters.

she puts 9 Chocolate Twisters in each treat bag,

1 bag hold 9 chocolates

9 chocolates = 1 bag

So 245 chocolates in how many bags

Divide 245 by 9

use long division

                       2 7 -----------> Quotient

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

          9           245

                        18                           (subtract it)

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

                          65

                          63              (subtract it)

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

                            2 -----------> remainder

She can make 27 bags

2 pieces of candy is left over

                       

8 0
3 years ago
Read 2 more answers
Which sum or difference is modeled by the algebra tiles? A. (x2 4x − 2) (x2 − 2x − 4) = 2x2 2x 2 B. (x2 4x − 2) (x2 2x 4) = 2x2
dimulka [17.4K]

Answer:

Because (-x²+2x+3)+(-x²-2x-1) = -x²+2x+3-x²-2x-1 = -2x²+2

Step-by-step explanation:

Hope It Helps!

5 0
2 years ago
Find the perimeter of a square that is 3 3\4 inches on a side.
goldfiish [28.3K]
It is B!!! If you take 3 3/4 times the # of sides which in this case is 4 equals 15 in the end.

8 0
3 years ago
Your class rank in 2018 was 89 out of 360 students. In 2019 your class rank was 95 out of 450 students. a. In which year did you
spin [16.1K]

A) given that in 2019 you were among the 21.11% of the best students in the class, in that year you had the higher percentile ranking, and B) the measure of average that would be the most meaningful is the median.

Given that your class rank in 2018 was 89 out of 360 students, while in 2019 your class rank was 95 out of 450 students, to determine A) in which year did you have the higher percentile ranking, and B) if you had the data on the cumulative GPA of each student at the end of the spring semester in 2018, which measure of average would be the most meaningful - mean, median or mode -, the following calculation should be performed:

  • 360 = 100
  • 89 = X
  • 89 x 100/360 = X
  • 24.72 = X
  • 450 = 100
  • 95 = X
  • 95 x 100/450 = X
  • 21.11 = X

Therefore, A) given that in 2019 you were among the 21.11% of the best students in the class, in that year you had the higher percentile ranking, and B) the measure of average that would be the most meaningful is the median.

Learn more about maths in brainly.com/question/25748895

8 0
3 years ago
Bagel Boys delivers bagels for a $6
polet [3.4K]

Answer:

A.37 BAGELS

Step-by-step explanation:

100-6

94/2.50

37.6 round down

37 bagels

8 0
3 years ago
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