Explain what πr² and h represent in terms of the cylinder. Then explain how this information is used to find the formula for the volume of a half sphere, 2/3 • πr²• r. Then explain how you use this formula to get the formula 4/3 πr³ for the volume of a sphere.

The probability of rolling 2 even numbers is,

⇒ 1 / 4

The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

Given that;

An experiment involves rolling two dice.

Now, Total possibilities are = 36

And, Number of possibilities to getting even numbers = 9

Hence, The probability of rolling 2 even numbers is,

⇒ 9 / 36

⇒ 1 / 4

Thus, The probability of rolling 2 even numbers is,

⇒ 1 / 4

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Answer:

A is the answer

Step-by-step explanation:

Have a nice day friend.!::::))))

Answer:

49 and 26

Step-by-step explanation:

every triangles angles equal 180 degrees 76 + 55 equals 131. 180 - 131 = 49. the 2nd question has a small square at the bottom part of the triangles and those always mean 90 degrees. 64 + 90 = 154. 180 - 154 = 26.

Answer:

69420

Step-by-step explanation:

3 x 7+x is 69420 so thats the answer ez

Answer:

35.355 cm

Step-by-step explanation:

if u imagine the 3D cut triangle but at a different angle, u would imagine the legnth of the parallelogram being 7.071 which is the hypotenuse of the triangle... along with the hypotenuse given, they also gave the side lenght of the parallelogram which is 5cm... 5 x 7.071 = 35.355 cm

Question 1: x=12.5

6x+4x+2x+30=180

(One full line forming a semi circle would equal to 180 degrees all the angles given would therefore equal up to that value)

Add like terms to simplify;

12x+30=180

Use inverse operations to isolate the variable!

180-30=150

150/12=12.5

Check ur work!

6(12.5)+4(12.5)+2(12.5)+30=180

75+50+25+30=180

180=180

Question 2: Angle EAF = 25 degrees

Since x equals 12.5

and the equation given to represent the angle is 2x

2(12.5)=25

Question 3: Angle DAE= 50 degrees

x=12.5

Angle DAE=4x

4(12.5) = 50

Question 4: Angle CAD= 75 degrees

x= 12.5

Angle CAD= 6x

6(12.5) = 75

(if any are incorrect i apologize beforehand)

Answer:

m = (-3, 1)

Step-by-step explanation:

Midpoint formula: [tex]m = (\frac{x_{1} + x_{2} }{ 2},\frac{y_{1} + y_{2}}{2})[/tex]

[tex]m = (\frac{1 + -7 }{ 2},\frac{0 + 2}{2})[/tex]

[tex]m = (\frac{1 -7 }{ 2},\frac{0 + 2}{2})[/tex]

[tex]m = (\frac{-6}{ 2},\frac{2}{2})[/tex]

[tex]m = (-3, 1)[/tex]

Answer:

C no is correct which is (6,2)

Sphere

Solve for radius

r≈5.76m

V Volume

802

m³

r

d

r

d

d

r

Using the formula

V=4

3πr3

Solving forr

r=(3V

4π)⅓=(3·802

4·π)⅓≈5.76362m

Answer:

r = 5.8 meters

Step-by-step explanation:

The volume formula is V = (4/3)(pi)(r^3), where r is the radius.

Solving for r, we get first 3V = (4pi)(r^3), so that r^3 = (3V)/(4pi)

or in this case, r^3 = 3(802 m^3) / (4pi) = 191.5 meters^3

Taking the cube root of both sides yields r = 5.8 meters

Answer:

Circle 1: 56.55

Circle 2: 53.41

Circle 3: 9.42

Circle 4: 15.71

Step-by-step explanation:

Formula for Circumference

C=2πR

Using Circle 1 as example:

Radius of 9

C=2π(9)

2*9= 18

18π

56.55

Answer:

1. 56.52

2.53.38

3. 9.42

4. 15.7

Step-by-step explanation:

These are the unrounded answers here are the rounded ones...

56.5

53.4

9.4

15.7

If this helped pls give brainliest.

Answer:

there for the answer is C=45

Step-by-step explanation:

The 27 red cars make up 60% of the total collection, here is the equation

to be solved:

         27 = 60% of C                         C is the total cars in the collection

         27 = .60 C

 27 / .60 = C

         45 = C

Answer:

for question 19 the answer is 6,12

Step-by-step explanation:

and then I'm sure of the last one

pls mark brainlest!!

Answer:

given below

Step-by-step explanation:

option 1 : equally likely

option 2 : impossible

option 3: certain

option 4 : unlikely

option 5 : likely

Answer:65.8

Step-by-step explanation:

Now we have: 70 percent of 94 = 65.8

Question: What is 70 percent of 94?

We need to determine 70% of 94 now and the procedure explaining it as such

Step 1: In the given case Output Value is 94.

Step 2: Let us consider the unknown value as x.

Step 3: Consider the output value of 94 = 100%.

Step 4: In the Same way, x = 70%.

Step 5: On dividing the pair of simple equations we got the equation as under

94 = 100% (1).

x = 70% (2).

(94%)/(x%) = 100/70

Step 6: Reciprocal of both the sides results in the following equation

x%/94% = 70/100

Step 7: Simplifying the above obtained equation further will tell what is 70% of 94

x = 65.8%

Therefore, 70% of 94 is 65.8

THERE YOU GO!!!!

Answer:

A) 300/6. B) Underestimate.

Step-by-step explanation:

321/6 is 53.5

300/6 is 50

and 360/6 is 60.

50 is closer to 53.5 than 60 is so the closest aproximation would be 300/6

Answer:

8; 3 : 8

Step-by-step explanation:

to find out how many shapes there are for every 3 circles you must first reduce the ratio down to 3 : blank

divide both sides by 4

3 : 8

that means there are 8 shapes for every 3 circles

the simplified ratio is 3 : 8

Answer:

1. 17/40, 0.425, 42.5%

2. 7/8, .875, 87.5%

Step-by-step explanation:

Add all of our balloons popped, which is 40. striped balloons popped is 17, so 17/40. which is 0.425 and 42.5%

for polka dots, it would be 7/8. 35/40 simplest form is 7/8 then we get .875, which is 87.5%

Answer:40

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Answer:

40

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Answer:

I think its C im not sure though.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

π is neverending. 3.14159...

√5 also is neverending.

√81 is 9.

2.3 repeating has the same digit repeating.

The dog walked 3 miles less in last week than this week.

An approximation is anything that is similar, but not exactly equal, to something else. A number can be approximated by rounding.

Given that, last week you walked your dog 12.405 miles. this week, you walked your dog 15 miles.

The dog walked in last week approx = 12 miles

The dog walked this week = 15 miles

The  fewer miles did he walked = 15-12 = 3

Hence, the dog walked 3 miles less.

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By examining this image:

  ⇒ we see a right triangle made up of sidelength of h, 8, and 17

     ⇒ we know this is a right triangle because there is a little square

         ⇒between lines of length 8 and h

            ⇒ which indicates this angle is 90 degrees

               ⇒ which indicates we have a right triangle

Since we have a right triangle

   ⇒ we can use the Pythagorean Theorem

           *look at the image attached for a better explanation

Now let's form an equation (based on the Pythagorean Theorem)

   [tex]h^2 + 8^2 = 17^2\\h^2 = 17^2- 8^2h^2 = 289 - 64 = 225\\h^2 = 225\\h = 15[/tex]

Thus h = 15cm

Hope that helps!

18 meters by 14 meters

Step-by-step explanation:

18 meters by 14 meters

Area of rectangle is base times height (AKA length times width or however you wish to call the dimensions).

This question is a system of equations question. We can make two equations. We know that every rectangle must have 2 "lengths" and 2 "widths" (4 sides in a rectangle). Since Maria only has 64 meters of fencing, we get the equation:

2L+2W = 64

Now we know the area enclosed must be 252 so we have:

L* W = 252

Rewriting the second equation we get:

Plug this into first equation to get:

(multiply everything by L)

Solving the quadratic tells us L can be 18 or 14. Let's consider if L is 18 first by plugging 18 back into the second equation to get 18 * W = 252 which gives us W = 14. If we do the same for when L = 14, we get that W = 18.

Now you might wonder why we have 2 possible combinations, that's because in reality, it doesn't matter which one we label as length (L) or width (W).

Answer: 8.10

Step-by-step explanation: times by each bottle

Answer:

124

Step-by-step explanation:

3 * 4 * 5 = 60

8 * 2 * 4 = 64

60 + 64 = 124

Answer:

Surface Area = 2×(3.4×18 + 3.4×30.6 + 18×30.6) = 1432.08 centimeters2

Step-by-step explanation: