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emmasim [6.3K]
2 years ago
7

In a used book store, there are some different mystery novels on a shelf. Suppose there are 64 different ways to buy these novel

s, including not buying any of them. How many mystery novels are there on the shelf?
Mathematics
1 answer:
den301095 [7]2 years ago
5 0
Is this a riddle or actual math?
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The area of a cylinder is 25<img src="https://tex.z-dn.net/?f=%5Cpi" id="TexFormula1" title="\pi" alt="\pi" align="absmiddle" cl
bixtya [17]

The diameter of cylinder is 2.28 cm and area of wrapper is 60.56π cm².

<h3>What is Cylinder?</h3>

A cylinder is a three-dimensional solid figure which has two identical circular bases joined by a curved surface at a particular distance from the center which is the height of the cylinder.

Here, Given area of cylinder = 25π cm²

          Height of cylinder = 11 cm.

Now, Area of Cylinder = 2πrh

                  25π = 2πr X 11

                   25 = 22r

                    r = 25 / 22

                  r = 1.14 cm

Then, diameter = 2r = 2 X 1.14 = 2.28 cm

Now area of wrapper = total surface area = 2πr(r + h)

                                    = 2π X 2.28 (2.28 + 11)

                                   = 4.56π X 13.28

                                   = 60.56π cm²

Thus, the diameter of cylinder is 2.28 cm and area of wrapper is 60.56π cm².

Learn more about Cylinder from:

brainly.com/question/3216899

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4 0
1 year ago
What multiplication fact Can be found by using the Arrays for 2 times 9 and 5 times 9
serg [7]
An array is a visual drawing to be used in multiplication problems. For example; 1 × 2 is 2 and you draw it or visualize it like; 00
So the answer to your question would be...
000000000
000000000

000000000
000000000
000000000
000000000
000000000
000000000
000000000

The top is the array of how it would look like to your answer tour question. Also, another way to do this is (2 + 5) × 9 = 63 
And yasss your answer is 63.... ALSO

***!!! PLEASE give this a THANKS! ALSO the BRAINIEST ANSWER/QUESTION! :) :D =P =) =D
8 0
2 years ago
Work out the length of CD <br> Answer to 3 significant figures
vladimir1956 [14]

Answer:

26

Step-by-step explanation:

I can  be wrong but i most likely sure it is correct because a triangle is 180 degrees you have to add 102 with 52 take that total and subtract it with 180 to find that angle is what you need to find the length. Again i am not sure but might be right.

5 0
3 years ago
Read 2 more answers
An airplane climbs at an angle of 16° with the ground. Find the ground
Tatiana [17]

Answer:

2403.2

Step-by-step explanation:

We get the length of the hypotenuse, and the base angle. To find the length of the base, we use the cosine of 16° since it is equal to the adjacent side length/ hypotenuse side length or cos 16°= x/2500. The isolate x by multiplying both sides by 2500. The cos 16° is around 0.96126, multiplied by 2500 (cos 16°(2500)) = 2403.1

6 0
3 years ago
Rotating a polygon in Quadrant II 270° clockwise is the same as what?
lora16 [44]
The answer to this question would be: <span>rotating it 90° counterclockwise. 

When you rotate up an object 360</span>°, it will revert into its original places. That mean, if you rotate it more than 180°, then rotating it to the opposite direction will be easier/closer than you do. In this case, you rotate the polygon 270° so it will equal to 360° - 270°= 90° of opposite direction, which means counterclockwise. The quadrant shouldn't have any meaning in this question.
8 0
2 years ago
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