Find the volume of a hemisphere with a radius of 8. Round to the nearest tenth.

Answers

Answer 1

Answer:

V(hemisphere) = 1072.3in^3

Step-by-step explanation:

To find the volume of a hemisphere, we will have to take the volume of a sphere as a whole and divide it by 2. This is because a hemisphere is half of a sphere.

The volume of a sphere is:

[tex]V(sphere) = \frac{4}{3} \pi r^3[/tex]

Let's plug in the radium of 8 into the equation and solve:

[tex]V(sphere) = \frac{4}{3} \pi (8)^3\\V(sphere) = \frac{4}{3}\pi 512 \\V(sphere) = 2144.660585[/tex]

Now, divide it by 2

V(sphere) = (2144.660585)/2

V(hemisphere) = 1072.3in^3

I hope this helps!!

- Kay :)

Answer 2

Answer:

the answer is V(hemisphere) = 1072.3in^3

Step-by-step explanation:


Related Questions

Write the phrase "9 increased by a number x" as an algebraic expression

Answers

Answer:

9+x

Step-by-step explanation:

To write 9 increased by a number x, you need to know that when it says "increased by" it means adding.

So it is saying 9 is being added by x, or 9+x as an algebraic expression.

The phrase "9 increased by a number x" as an algebraic expression would be; 9+x

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We need to write the given phrase "9 increased by a number x" as an algebraic expression

Let the unknown number = x

To write 9 increased by a number x, we need to know that when it says "increased by" it means adding.

So it is saying 9 is being added by x, then

We can write it 9+x as an algebraic expression.

To know more about an expression follow the;

brainly.com/question/19876186

#SPJ2

how many brainliest yall got in total? I have 38. fewest gets brainliest (bc they need it more)

Answers

Step-by-step explanation:

5 :/ tvtvtvybububunubuybybyb

Answer:

i have 7

Step-by-step explanation:

...

During a field trip, 60 students are put into equal-sized groups. Use 60 ÷ 5 = 12 to answer this question. If 5 represents the number of groups, what does 12 represent?

Answers

Answer:

12 is the number of people in each group.

Step-by-step explanation:

12 would be the number of people in each group. because as you divide 60 to 5..... 12 people are divided sperately into 5 groups.. hope this helps and if you have any questions go ahead and ask! JESUS LOVES YOU

Lucymarrisa u still there? I have a question for you I will put in comments (Mathematics)

Answers

Answer:

This is not a chatting place, OK!

Step-by-step explanation:

This shoebox is a right rectangular prism with dimensions of 30 cm by 15 cm by 12 cm.

What is the surface area of this shoebox?

Answers

Answer:

d. 1980 cm2

Step-by-step explanation:

                dimentions          area                    total

base          30x15                  450cm2             900cm2

face1           12x15                 180cm2                360cm2            *add to get

face2          30x12                 360cm2               720cm2

plus i got it right ;)                                                1980*

Pls help I really need it

Answers

Answer:

20

Step-by-step explanation:

Use the equation

45%x=9

Divide by 45% on both sides to get 20

The answer would have to be 20

super hard for me ill give a brainliest if its right

Answers

Answer: -6 degrees C i'm not sure sorry

Step-by-step explanation:

I believe -6 hopes this helps bby

A family of 12 went to the local Italian restaurant for dinner. Every family member ordered a drink and meal, 4 ordered an appetizer, and 8 people ordered cake for dessert. Write an Expression
Please help asap

Answers

Answer:

12d + 12m + 3 ap + 6c

Step-by-step explanation:

d= drink

m=meal

ap= appetizer

c=cake

Answer:

12d + 12m + 3 ap + 6c

Step-by-step explanation:

m=meal

d= drink

c=cake

ap= appetizer

What is the value of 2y- 6 if y = 12

Answers

Answer:19

Step-by-step explanation:

The answer is 19 because you need to do 12*2 and then subtract 6. 24-6=19

Answer:

18

Step-by-step explanation:

1.) 2y -6

2 ) 2(12) - 6

3.) 24 - 6

Answer ~ 18

1.) 12 equals y so put 12 in place of y

2.) Using PEMDAS, multiply 12 × 2 which equals 24.

3.) Then you subtract 6 from 24 which equals 18.

solve for x: 6 + 3x = x - 8

Answers

Answer:

-7

Step-by-step explanation:

6 + 3x = x - 8

6+2x=-8

2x=-14

x=-7

THIS IS DO TODAY I NEED HELP PLS

Answers

Answer: $9.99

Step-by-step explanation:

2=$4

2/2=1

4/2=2

$2+$8 =10$

Answer:

D.$9.95

Step-by-step explanation:

If you divide the cost of 2 pairs of socks in half which is $3.98 you would get $1.99 which is the cost of 1 pair of socks and then you would multiply $1.99 by 5 to get $9.95 which would be the cost of 5 pairs of socks.

Pls I need help 20 points

Answers

Answer:

Sorry this is hard I tried several solutions and double-checked them but they were all wrong sorry.

Step-by-step explanation:

This is the graph for both 1/2x+3 and 4x-8y=-24
4x-8y=-24 in to slope intercept form is 1/2x+3
1/2x+3 into standard form is 4x-8y=-24
They are the same equation written in different forms

Solve for x: -243 = -9(10 + x)


I will reward Brainliest

Answers

Answer:

x = 17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

-243 = -9(10 + x)

Step 2: Solve for x

Divide -9 on both sides:                    27 = 10 + xIsolate x:                                             17 = xRewrite:                                              x = 17

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    -243 = -9(10 + 17)Add:                                     -243 = -9(27)Multiply:                               -243 = -243

Here we see that -243 does indeed equal -243.

∴ x = 17 is the solution to the equation.

Because oxygen only has 2 electrons in its inner shell and it needs 6 more to make 8. It binds with 6 hydrogens to fill up its shell.

Answers

Answer: 1 13/21 Hope this helped!!

~Queen~

Q#1: Amanda and Lisa are playing games at the arcade. Amanda started with $15, and the machine she is playing costs $0.75 per game. Lisa started with $13, and her machine costs $0.50 per game. After how many games will the two girls have the same amount of money remaining?
Q#2:The Lone Star Shipping Company charges $14 plus $2 a pound to ship an overnight package. Discount Shipping Company charges $20 plus $1.50 a pound to ship an overnight package. For what weight is the charge the same for the two companies?

Answers

Let D = the amount of money Deanna has after x games.

We know Deanna started with $15 and she spends 0.75 per game, so we can make the following equation:
D = 15 - 0.75x

Let L = the amount of money Lisa has after x games.

We know Lisa started with $13 and she spends 0.50 per game, so we can make the following equation:
L = 13 - 0.5x

The question is asking how many games need to be played for L and D to be equal, so just equate L and D and solve for x:

D = L
15 - 0.75x = 13 - 0.5x
15 - 13 = -0.5x + 0.75x
2 = 0.25x
2 = (1/4)x
8 = x

Therefore they need to play 8 games each to have the same amount of money.

Answer: For question one its 8

Step-by-step explanation: Let A be the variable for Amanda! The amount of money she has for x amount of time. We know that lisa has $13 and she is spending .50 every game. The equation for this would be L=13-0.5x. SO to solve this problem of when they both will have the same amount of money use the equation. 15- 0.75x=13 - 0.5x then you will switch the equation around. So the next step would look like 15-13= -0.5x + 0.75x! Then you'll get 2=0.25x change that to a fraction and you'll get 1/4 and 8=x!

Im so sorry if this is confusing!

Solve the system of equations by substitution. Write your solution as an ordered pair
x+y=81
y=8x

Answers

x + 8x = 81
9x = 81, x = 9
y = 8(9), y = 72
Solution: (9, 72)

Answer:

Step-by-step explanation:

Frt

The cost of Mr. Patten's car insurance increased by 5% to $86.82 per month. What was the cost of his insurance before it increased?

a
$91.16
b
$82.69
c
$82.48
d
$81.82

Answers

I think c or b for the problem
I thick c is the one

HELP PLS
ada has a new puppy that weighs 9 pounds. It is now at about 20% of its adult weight. Here is a diagram that Jada drew about the weight of her puppy. The adult weight of the puppy will be 45 pounds. How can you see that in the diagram

Answers

um we need to see the diagram in order to answer this question sorry...but have a good day :)

Answer:

suck PP for money

Step-by-step explanation:

The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole

Answers

Answer:

fraction = 57/100

decimal = 0.57

percent = 57%

Step-by-step explanation:

Fraction: 57/100
Percent: 57%
Decimal: 0.57

What are the rate of change and the initial value of the function represented by the graph?




The rate of change is 3 and the initial value is 5.


The rate of change is 13 and the initial value is 5.


The rate of change is 5 and the initial value is 3.


The rate of change is 5 and the initial value is 13.

Answers

the answer is either a or b

when subtracting with negative numbers, change the problem to an ____problem and ____

Answers

Answer: addition problem and add the negatives

Step-by-step explanation:

2 negatives cancel out and switch to a positive +

This is always the case when subtracting a negative number. So, when subtracting two negative numbers, the first step is always to change the subtraction to an addition and re-write the problem. Then, you have an addition problem between a positive number and a negative number.

Use expansion shown to simplify the expression 1/2(3x-2/3y)+3(x/2+1/2y) I’m giving brainliest

Answers

Answer: 1 1/6

Step-by-step explanation:

They already added the x for you so all you had to do was combine the y.

-1/3 +3/2

then you find the common denominator

-2/6 + 9/6 = 7/6

therefore you should get 1 1/6

Answer:

7/6

Step-by-step explanation:

∛⊄∅Δ≡≡≡ωωω↓∵∅∩[tex]x^{2} x^{2} x^{2} \sqrt{x} \neq \neq \neq \int\limits^a_b {x} \, dx \leq \\ \geq \neq \neq \pi[/tex]????????? anyeong heplyeo meya withay equetasionasay

Answers

Answer:

]§[¬´°´°´°°¥¥<]μ]||]|]|]

Step-by-step explanation:

[°[μ[||[|[´¬]¬]|]]<₩<°]μ]μ<°°

μμ´§[¿]¿]μ]]μ]|

---> §´Μ´´|´¥´Μ[§]°]¿¡¡<

Mr adkins has 2 packages, each with 6 batteries. He uses 4 of the batteries in a flashlight . How many batteries does he have left?

Answers

Answer:

8

Step-by-step explanation:

2 x 6 = 12

12 - 4 = 8

So, our answer is 8.

Answer:

8

Step-by-step explanation:

6+6=12 , 12-4=8

A car is traveling at a steady speed. It travels 2 1/2 miles in 3 1/3 minutes. How far will it travel in 45 minutes​? In 1 hour​? The car will travel nothing miles in 45 minutes.
PLEASE HURRY IM TIMED!!!!! PLEASE HELP!!!

Answers

Answer:

it will travel 18 miles in 45 min. and 30.5 in 1 hr.

Step-by-step explanation:

divide 45 by 2 1/2

divide 60 by 2 1/2

Shannon’s rectangular countertop is 3 feet wide. It is 3 times as long as it is wide. Find the length and area of Shannon’s countertop. The length of Shannon’s countertop is ?
feet.

The area of Shannon’s countertop is ?
square feet.

Answers

Answer:

9 feet long

Step-by-step explanation:

A notha wun ........

Answers

Slope is -1/5

Y-intercept is 21

Equation is y=-1/5x+21

Yes it’s proportional :)

Answer:

Slope is -1/5, Y-intercept is 21, Equation is y=-1/5x+21, It’s proportional

Step-by-step explanation:

Brainliest if correct pls

(NOT MATH ITS SCIENCE HELP PLEASE)If a builder wanted to construct a shopping mall on a barrier island, which of the following questions would be the most significant concern for him to consider?

A.
Where would be the best place to build the mall so that it is protected from the impact of storms which causes the winds and waves to constantly redistribute the sand?

B.
Before construction begins, should large amounts of sand be removed from the
island first in order to prevent erosion of the beach?

C.
Since the islands are constantly changing, what location would offer the best access to sand resources to aid in maintaining the island?

D.
If an earthquake were to occur, would the islands sink below sea level, causing a tsunami to crash on the mainland

Answers

Answer:

Option A

Step-by-step explanation:

Solve the system of equations by substitution. Write your solution as an ordered pair
x+2y=-2
y=-2+11

Answers

Answer:

hello

Step-by-step explanation:

djh;vkajhkjbcbvusiwihalkjfbih

X+2(-2+11)=-2. plug in y
X-4+22=-2 distribute 2
+22 +22 Subtract +22
———————-
X-4=20
+4. +4. Add 4 to both sides

Answer is X=24

Jackie needs to save $125 to go to a concert. He has saved $35. He makes $7.50 an hour at his job.

Let x representing the number of hours.

Which equation and solution can be used to show how many hours jackie must work in order to have enough money to go to the concert?

A. 125x + 35 = 750; x = 5.75
B. 35 - 7.5x = 125; x = 6
C. 7.5x + 35 = 125; x = 12
D. 35x + 125 = 750; x = 18

Answers

Answer:

C

Step-by-step

Answer:

Answer is C

Step-by-step explanation:

First Jackie needs to save $125

y = 125

He already saved $35, this is our constant

He makes $7.50 an hour on his job,

Our variable x is hours

125 = 7.50x + 35

If we solve for x, we get x = 12

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