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irina1246 [14]
2 years ago
7

What is the approximate volume of a cylinder with a radius of 9cm and height of 22 cm? Use 3.14 to approximate rr?

Mathematics
2 answers:
vitfil [10]2 years ago
6 0
To find the volume of a cylinder use the formula V=a (h) where a is the area of the base and h is the height of the cylinder.a= pi r^2. 
V=(3.14 x 9^2) (22)
V=(3.14 x 81) (22)
V=254.34 x 22
V=5595.48               
Doss [256]2 years ago
4 0
The volume of a cylinder with a radius of 9 cm and a height of 22 cm is 5598.32 cm^{3}
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N is an integer.<br>Write the values of n such that -15 &lt; 3 &lt; 6​
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

n could be : -14, -13, -12... -1, 0 , 1, 2, 3 ,4,5

3 0
3 years ago
Through how many radians do the minute hand and the hour hand move between 1:00 p.m. and 1:45 p.m. (on the same day)? ​
timofeeve [1]

Answer:

π/8 radians

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION

In 1 h the minute hand on a clock moves through a complete circle, and the hour hand moves through 1 12 of a circle. Through how many radians do the minute hand and the hour hand move between 1:00 p.m. and 1:45 p.m. (on the same day)?

SOLUTION

✓If the minute hand on a clock moves through complete circle in 1 hour, then it means that it goes through a circle and angle of circle in radians is 2π.

Between 1:00 p.m. and 1:45pm in the same day we have 45 minutes i.e (1.45 pm -1pm)

Within the 1hour minutes, the hand can move with complete cycle of 2π radians

Then At time t= 45minutes

Angle through the circle at 45 minutes= 45/60 ×2π radians

= 3π/2 radians

And if the hour hand goes through a complete cycle 1/12 as told in the question we have 1/2 × 2π radians

For t=45 minutes

Then 1/12 × 2π ×45/60

= π/8 radians

Hence, the minute hand and the hour hand move π/8 radians between 1:00 p.m. and 1:45 p.m.

5 0
2 years ago
Q. If A is a square matrix such that A² = A, then write the value of 7 A −(I + A)³, where I is an identity matrix.​
andriy [413]

Answer:

7A−(I + A)³

=7A−(1³ + A³ +3.I.A² +3.1².A)

=7A−(I+ A².A+3A² +34)

= 7A-(I+A.A+3A+34) (*: A² = A)

=7A-(I+ A² +6A)

= 7A-(I+A+64)

=7A-(1+7A)

=7A-I-7A

=-1

6 0
2 years ago
Please help with this question I will pass if I get it right
Alex17521 [72]

9514 1404 393

Answer:

  ∠K = ∠M = 55°

Step-by-step explanation:

The two marked angles are opposite the sides marked as congruent. That means the angles are congruent, so we have ...

  4x -1 = 2x +27

  2x = 28 . . . . . . . . add 1-2x to both sides

  x = 14

  4x -1 = 4(14) -1 = 55

The measures of the angles are ...

  ∠K = ∠M = 55°

4 0
2 years ago
$3 is what percent of $4?
ozzi

Answer:

The answer is 3/4 = 75%

Step-by-step explanation:

3/4 = 75%

It is: 3/4 = 75%

4 0
3 years ago
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