A glass marble has a radius of 1cm. How much glass is in the marble?

Answers

Answer 1

Answer:

4.19cm^3

Step-by-step explanation:

π^2

V=[tex]\frac{4}{3}[/tex]πr^3

= 4/3·π·13≈4.18879


Related Questions

Joe is wrapping a birthday present in a box that is 21 inches long, 14.5 inches wide, and 9 inches high. All sides of the box must be covered. What is the surface area that must be covered by wrapping paper? *

Answers

Answer:

2740.5

Step-by-step explanation:

This is what I got why I did was multipley them

Answer:

2740.5

Step-by-step explanation:

This is what I got when I multipled

Can someone help me with this question?!!

Answers

The answer is that X equals 136

Plz solve this is for a test and I have a f soooo-

Answers

The answer is 12/2, well that's what I got.

Either way this question might get deleted so yeah

12

Step-by-step explanation:

12 divided by 2 is 6. so this would be the answer.

HELP ASAP

Two birds sit at the top of two different trees. The distance between the first bird and a birdwatcher on the ground is 32 feet. The distance between the birdwatcher and the second bird is 45 feet.

A triangle is created from point Bird Watcher, point First Bird, and point Second Bird. Angle First Bird is a right angle, and angle Second Bird measures x degrees.

What is the angle measure, or angle of depression, between this bird and the birdwatcher? Round your answer to the nearest tenth.

35.4°
44.7°
45.3°
54.6°

Answers

Answer:

The correct angle is 45.3°

Step-by-step explanation:

Since the opposite side of the angle is 32 feet, and the hypotenuse of the right triangle is 45 feet, you would know that the sine of x° is equivalent to [tex]\frac{32}{45}[/tex]. To find the value of x, take the arcsin of both sides and you'll get that [tex]x = arcsin(\frac{32}{45})[/tex] ⇒ [tex]x[/tex] ≈ 45.3°.

45.3 I think good luck

"sports discount" has uniforms for 68$. They are offering a 20% discount on each uniform, and a 7 percent sales tax will be applied to the discount price. What would be the final cost for eight uniforms after the discount and sales tax

Answers

Answer:

58.208 times 8 equals 465.664 rounded down to 465.66

Step-by-step explanation:

Answer:

$465.66

Step-by-step explanation:

First, we are buying 8 uniforms. Therefore, the total price on a normal day would be 8x68 = $544

However, on this day, there is a 20% discount. In other words, we are only paying 80% of the original price as percentages are always out of 100.

The price after the sports discount will be 544x0.8 = $435.2

On top of this, we have to pay a sales tax of 7 percent. The 7 percent is an additional cost to the discounted price of 435.2, hence we add 0.07 (7 percent in decimals) onto 1 (100% in decimals).

This gives us 435.2 x ( 1 + 0.07 )  = 465.664.

Because currency is to 2 decimal points (1 cent), the final answer will be 465.66, or 465 dollars and 66 cents.

Write 5/36 as a decimal

Answers

Answer:

0.138

Step-by-step explanation:

Answer:

0.388888888888

Step-by-step explanation:

take 36 to the nearest hundred.

times the numerator with the same number

and convert

Determine the min value of y=18cos(10θ) Enter only the numeric value

Answers

Answer:

look at this

o(*≧□≦)o

Step-by-step explanation:

MATH-WAY

Answer:

I dunno.... like 29876?

Step-by-step explanation:

The hanger image represents a balanced equation (look at picture)

Answers

Answer:

A) [tex]27 = b + 9[/tex]

[tex]b=18[/tex]

Step-by-step explanation:

When given a balanced scale (represented by a hanger in this image), the sum of the values on one side equals the value on the other side. Thus, the equation that this hanger represents is the following:

[tex]27 = b + 9[/tex]

Use inverse operations to solve this equation,

[tex]27 = b + 9[/tex]

[tex]-9[/tex]

[tex]18 = b[/tex]

Question Help The temperature in a greenhouse should be 70 degrees or higher. One morning, the heater stopped working. The temperature dropped 5 degrees before someone fixed the heater. The temperature was still at least 70 degrees when the heater started working again. How can you best describe the temperature in the greenhouse before the heater stopped working? I need help please​

Answers

Answer:

the temperature was still suitable for the greenhouse

Step-by-step explanation:

Check if (1,6) is the solution to the system shown below.

Answers

Answer:

NO it is not

Step-by-step explanation:

To check that, we will need to substitute the value of each of the coordinates in each of the equations

10x-y = -6

substitute 1 for x and 6 for y

we have this as;

10(1)-6 = 4

Outrightly, we can see that the given point is not a solution to the given system of equations

however, let us confirm for the second

We have this as;

-10(1) + 5(6)

= -10 + 30 = 20

so we can confirm that it does not work for any of the two and our answer is NO

Find (g • f) (3)
f(x) = |x+2|
g(x) = -x^2
a. -25
b. 1
c. 4
d. -15

Answers

Step-by-step explanation:

Given

f(x) = |x + 2|

g(x) = - (x)²

Now

(g•f) (3) = g ( 3 + 2 )

= g(5)

= - (5)²

= -25

Hope it will help :)

A sphere has a surface area of 803.84 cm^2. What is the volume?

Answers

Answer:

V≈2143.03cm³

Step-by-step explanation:

The volume of the sphere is 2143.57 cm³.

What is the surface area of the sphere?

A = 4 × π × r², where 'r' is the radius of the sphere.

What is the volume of the sphere?

V = (4/3) × π × r³

For given example,

a surface area of the sphere is 803.84 cm^2.

⇒ A = 803.84 cm²

Using the formula of the surface area of the sphere,

⇒ 4πr² = 803.84

⇒ r² = 64

⇒ r = 8 cm

Using the formula of the volume of the sphere,

⇒ V = (4/3) × π × r³

⇒ V = (4/3) × 3.14 × 8³

⇒ V = 2143.57 cm³

Therefore, the volume of the sphere is 2143.57 cm³.

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If 4c + 10= 20 -16c, what is 8c?

Answers

If that = that . That mean 8c is 3c

Help again please Don’t get it at all

Answers

Answer:

hi

Step-by-step explanation:

Answer:

42 degrees

Step-by-step explanation:

the other angles are 90 and 48

There is a bag filled with 5 blue, 6 red and 2 green marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting 2 greens?

Answers

Answer:

the probability of getting 2 greens is 2/13

Step-by-step explanation:

Triangle ABC is a right triangle. The lengths of the legs are 60 centimeters and 80 centimeters.

What is the length, in centimeters, of the hypotenuse?

Answers

Answer:

69.28 cm

Step-by-step explanation:

i used a calculator but the steps you take to solve this are...

1. Multiply the length of one side by the length of the other.

             80x60 = 4,800

2. Square that number to get the hypotenuse

              [tex]\sqrt48000[/tex]

3. You've got your answer

       (69.28)

Answer:

100 cm

Step-by-step explanation:

<3

The midpoint of AB is M(-6, 1). If the coordinates of A are (-7, -3) what are the coordinates of B?​

Answers

Answer:

Step-by-step explanation:

Kelly has two dogs, Pixie and Fifi.
Pixie weighs 8.5 kilograms
Fifi is 720 grams lighter than Pixie.
Work out how much Fifi weighs.

Answers

Answer:

7.78 kilograms

Connor is organizing textbooks on his bookshelf. He has a Spanish textbook, a math textbook, a physics textbook, and a health textbook. How many different ways can he line the textbooks up on his bookshelf?

Answers

Answer:

you can organize them 24 different ways

The different ways can he line the textbooks up on his bookshelf is 24

What is fundamental counting principle?

The fundamental counting principle is a rule used to count the total number of possible outcomes in a situation.

Given that, Connor is organizing textbooks on his bookshelf. He has a Spanish textbook, a math textbook, a physics textbook, and a health textbook.

The number of ways to arrange n things = n!

Number of different books = 4

Number of different ways to arrange 4 different books =4!

Number of different ways to arrange 4 different books= 4 x 3 x 2 x1

Number of different ways to arrange 4 different books = 24

Hence, the different ways can he line the textbooks up on his bookshelf = 24

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what is 5/6 divided by 1/6 in simplest form

Answers

Answer:

5 is the answer

Step-by-step explanation:

⅚÷⅙

5/6*6/1

5

Work out the value of 22 - 2y when
y = 10

10 X 2 = 20

22-20= 2

Answer = 2

Answers

Answer:

2

Step-by-step explanation:

22 - 2y

= 22 - 2 ( 10 )

= 22 - 20

= 2

Se 15% de um rebanho bovino são bois e o restante são vacas, qual é o total de cabeças desse rebanho, se há 17.000 vacas?

Answers

Responder:

20.000

Explicação passo a passo:

Dado que:

Porcentagem de bois no rebanho = 15%

Percentagem de vacas = (100 - 15)% = 85%

Número de vacas = 17.000

Por isso,

85% = 17.000

15% = x

Multiplicação cruzada

0,85x = 17.000 * 0,15

0,85x = 2550

x = 2550 / 0,85

x = 3000

Número de bois no rebanho = 3000

Portanto, número total de gado no rebanho =

3000 + 17000 = 20.000

A new iPhone cost $829 and is on sale at a 25% discount. What is the sale price.

Answers

Answer:

621.75

Step-by-step explanation:

Hope this helps!!!

Please help its due soon ill give brainlest

Answers

Answer:

r ≈ 7.80 yd

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ( r is the radius )

Here C = 49 , then

2πr = 49 ( divide both sides by 2π )

r = [tex]\frac{49}{2\pi }[/tex] ≈ 7.80 yd ( to the nearest hundredth )

To solve x^2+5x=0, mia rewrote the equation as x(x+5)=0. Explain how rewriting this equation in factor form enable mai to solve the equation.

Answers

The solution to the equation x² + 5x = 0 is x = 0 or x = -5

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

x² + 5x = 0   be equation (1)

Now , on simplifying the equation , we get

On factorizing the equation , we get

Taking the common factor x ,

x ( x + 5 ) = 0

Now , x can take 2 values which will satisfy the given equation

when x = 0 or ( x + 5 ) = 0

when x = 0

Substitute the value of x in the equation , we get

0 ( 0 + 5 ) = 0

0 = 0

The equation is true when x = 0

And ,

when ( x + 5 ) = 0

Subtracting 5 on both sides of the equation , we get

x = -5

when x = -5

-5 ( -5 + 5 ) = 0

-5 x 0 = 0

0 = 0

The equation is true when x = -5

Hence , the solution is 0 , -5

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Why would someone want to factor a polynomial? Provide real world examples of different questions we can answer or facts we can determine from factoring a polynomial.

Answers

Factoring is an important process that helps us understand more about our equations. Through factoring, we rewrite our polynomials in a simpler form.

It is used in asset (stock) valuation. It is used in bond trading and mortgage calculations.

Solve the following problems using Elimination.

NO LINKS PLS-

8x - 5y =-18
2x + 5y = 58

Answers

9514 1404 393

Answer:

  (x, y) = (4, 10)

Step-by-step explanation:

The coefficients of y are opposites, so the y-terms can be eliminated by adding the equations.

  (8x -5y) +(2x +5y) = (-18) +(58)

  10x = 40 . . . . . . simplify

  x = 4 . . . . . . . . . divide by 10

Substituting this into the second equation gives ...

  2(4) +5y = 58

  5y = 50 . . . . . . . . subtract 8

  y = 10 . . . . . . . . . .divide by 5

The solution is (x, y) = (4, 10).

Can someone please help me please

Answers

Answer:

the answer is 50 square ft bc i counted the squares and i got 50

Step-by-step explanation:

Answer:

i think it would be C

Step-by-step explanation:

just add all the squares

Will give brainliest if it is correct!

Answers

Answer:

(-5, 1)

Step-by-step explanation:

Eliminate the equal sides of each equation and combine.

[tex] - x - 4 = \frac{3}{5} x + 4[/tex]

Solve − x −4 =35x + 4 for x.

[tex]x = - 5[/tex]

Evaluate y when x = −5.

[tex]y = 1[/tex]

hence, the system of this equation is (-5, 1).

Find the 8th term of the arithmetic sequence -5x+3, x+9, 7x+15, ...

Answers

Answer:

Step-by-step explyou have a big brother or sister

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Sold $1,552,800 of merchandise (that had cost $1,325,200) on credit, terms n/30. b. Wrote off $31,300 of uncollectible accounts receivable. c. Received $1,282,200 cash in payment of accounts receivable. d. In adjusting the accounts on December 31, the company estimated that 2.80% of accounts receivable would be uncollectible.Required: Prepare journal entries to record Liang's year 1 and year 2 summarized transactions and its year-end adjustments to record bad debts expense. (The company uses the perpetual inventory system and it applies the allowance method for its accounts receivable.) Someone help me please Given y varies directly as x, find the constant of variation k.