Find the area of this semi-circle with diameter, d = 12cm.
Give your answer as an expression in terms of π.

Answers

Answer 1

Answer:

6pi

Step-by-step explanation:

Area of a circle = 2pi*r

d = 12

r = d/2

r=6

Area of semicircle = (2pi *r)/2 = pi*r

pi*6 = 6pi

Answer 2

Answer:18π cm^2

Step-by-step explanation:

diameter=12

Radius=diameter ➗ 2

Radius=12 ➗ 2

Radius=6

Area of semicircle=0.5 x π x radius x radius

Area of semicircle=0.5xπx6x6

Area of semicircle=18π cm^2


Related Questions

After dinner 2/3 of a pan of lasagna is left. The hole pan of Lasagna was originally cut in into pieces that were each 1/6 of the pan.which equation represents the number of pieces of lasagna that are left after dinner

Answers

Answer:

4 pieces left

Step-by-step explanation:

Initial number of pieces = 6

Number of pieces left:

6*2/3 = 2*2 = 4

Answer:-

2/3 in terms of denominator 6 = 4/6

thus, there are 4 parts remaining (because, it was told that each lasanga was 1/6th part of the pan)

so,4/6 of a pan is 4 pieces.

Hope this helps you.

LOS ANGULOS CONSECUTIVOS SON COMPLEMENTARIOS?

Answers

Answer: Si ellas son complementarias

Step-by-step explanation: Sorry not so good at spanish

Hoped this helped!!!!!

what is the domain and range of f(x)=2^x+4 +6​

Answers

can you show me a picture then maybe i can help you

Answer:

Domain: (-∞,∞),{xIx∈R}

RANGE:(10,∞),{yly>10}

Need math answer please

Answers

Answer:

a; (x|x<3)

Step-by-step explanation:


Please help

The lengths of pregnancy terms for a particular species of mammal are nearly normally distributed about a mean pregnancy length with a standard deviation of 17 days. About what percentage of births would be expected to occur within 51 days of the mean pregnancy​ length?

Answers

Answer:

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy​ length

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Standard deviation = 17.

About what percentage of births would be expected to occur within 51 days of the mean pregnancy​ length?

51/17 = 3.

So, within 3 standard deviations of the mean.

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy​ length

Please help me I’m stuck on this.


Oliver wants to play the gone fishing game at the carnival.He will use the graph to find the total cost (Y) to play a couple of games.If Oliver wants to play 4 games,how much will he pay?


If u need more information tell me in the comments :)

Answers

Answer:

The cost of the game is $7 .

Step-by-step explanation:

By looking at the graph, the line at x = 4 is equals to y = 7

Use substitution to solve the system of equations algebraically.

x2 + y2 = 32

y = x



One solution to the system of equations is (–4, –4).

The other solution to the system of equations is _______

Answers

Answer:

The other solution to the system of equations is : (4,4)

Step-by-step explanation:

[tex]x^{2}}+y^{2} =32 \\y=x\\\\x^{2} +x^{2} =32\\2x^{2} =32\\x^{2} =16\\\\x=4 Or x=-4\\y=4 Or y=-4[/tex]

Answer:

(4, 4)

Step-by-step explanation:

please Please answer this correctly I have to finish this today as soon as possible



Estimate the measure of this angle within 10°.

Answers

Answer:

about 173⁰

Step-by-step explanation:

because it's very close to 180⁰ but isnt it, I'd say between 170 and 180

173 to be safe

Can I get some help plz.........

Answers

Answer:

108

Step-by-step explanation:

Answer:

3/4 cm

Step-by-step explanation:

help please quick 29 points please answer

Answers

Answer:

Step-by-step explanation:

It costs $7 for 1 baseball and Mrs.Weeks is buying 36 baseballs, that would be: $7 X 36 = $252

It costs $5 for 1 softball and Mrs.Weeks is buying 24 softballs that would be:

$5 X 24 = $120

$252 + $120 = $372 for the baseballs and softballs

Mrs.Weeks gives the cashier four $100 bills that is $400 dollars.

so $400 - $372 = $28 (Mrs.Weeks change)

Brainliest giving to who gets this CORRECT first. Check all that apply.

Answers

Answer:

B and E

Step-by-step explanation:

You can start by moving everything to one side and solving the quadratic equation:

[tex]x^2+7x-18=0[/tex]

Factoring:

[tex](x+9)(x-2)=0[/tex]

x=2,-9, or answer choice B and E. Hope this helps!

Answer:

B and E

Step-by-step explanation:

3x+20=5x how many Solutions does it have

Answers

Answer:

one

Step-by-step explanation:

3x + 20 = 5x

20 = 5x - 3x

20 = 2x

x = 10

one solution

3x+20=5x only have one solution

Tickets to a concert cost either $12 or $15. A
total of 300 tickets are sold, and the total
receipts were $4,140. How many of each kind
of ticket were sold?
First complete the equations below, where x stands for
$12 tickets and y stands for $15 tickets.
[?]x + [ ]y = 4,140; x + y = U

Answers

Answer:

12x +15y = 4140; x + y = 300x = 120; y = 180

Step-by-step explanation:

The first equation is for receipts. Each x ticket generated $12 in receipts, so the first term needs to be 12x. Each y ticket generated $15 in receipts, so the second term needs to be 15y. U in this set of equations is the total number of tickets, said to be 300.

The equations are ...

  12x +15y = 4140; x +y = 300

__

Using the second equation to write an expression for x, we have ...

  x = 300 -y

Substituting this into the first equation gives ...

  12(300 -y) +15y = 4140

  3600 +3y = 4140

  y = (4140 -3600)/3 = 180

  x = 300 -180 = 120

The number of tickets sold is ...

  $12 tickets -- 120

  $15 tickets -- 180

_____

You might want to notice that the equation we ended up with:

  4140 -12(300) = 3y

is equivalent to this "word solution." This can be done in your head; no equations required.

If all the tickets sold were $12 tickets, the revenue would be $3600. The revenue is $540 more than that. Each $15 ticket generates $3 more revenue than a $12 ticket, so to have $540 more revenue, we must have 540/3 = 180 $15 tickets.

Answer: tickets: 120………180

Step-by-step explanation:

7/8-1/4 in simplest form

Answers

Answer:

I am pretty sure that it is 5/8

Step-by-step explanation:

Answer: 5/8

Step-by-step explanation: 1/4 turns into 2/8 and then subtract 2/8 from 7/8 and you get 5/8

To play basketball with her friends, Evangeline needs to pump air in her ball, which is completely deflated. Before inflating it, the ball weighs
0.615
0.6150, point, 615 kilograms. Afterwards, it weighs
0.624
0.6240, point, 624 kilograms. The diameter of the ball is
0.24
0.240, point, 24 meters.
Assuming the inflated ball is perfectly spherical, what is the air density within it? Can someone tell me answer please ?

Answers

Answer:

ρ_air = 0.15544 kg/m^3

Step-by-step explanation:

Solution:-

- The deflated ball ( no air ) initially weighs:

                             m1 = 0.615 kg

- The air is pumped into the ball and weight again. The new reading of the ball's weight is:

                            m2 = 0.624 kg

- The amount of air ( mass of air ) pumped into the ball can be determined from simple arithmetic between inflated and deflated weights of the ball.

                           m_air = Δm = m2 - m1

                           m_air = 0.624 - 0.615

                           m_air = 0.009 kg

- We are to assume that the inflated ball takes a shape of a perfect sphere with radius r = 0.24 m. The volume of the inflated ( air filled ) ball can be determined using the volume of sphere formula:

                         V_air = 4*π*r^3 / 3

                         V_air = 4*π*0.24^3 / 3

                         V_air = 0.05790 m^3  

 

- The density of air ( ρ_air ) is the ratio of mass of air and the volume occupied by air. Expressed as follows:

                         ρ_air = m_air / V_air

                         ρ_air = 0.009 / 0.05790

Answer:            ρ_air = 0.15544 kg/m^3                      

Answer:

1.24

Step-by-step explanation:

By which rule are these triangles congruent?

Answers

Answer:

Side-Side-Side is a rule used to prove whether a given set of triangles are congruent. The SSS rule states that: If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.

Step-by-step explanation:

Answer:Side-Side-Side is a rule used to prove whether a given set of triangles are congruent. The SSS rule states that: If three sides of one triangle are equal to three sides of another triangle, then the triangles are congruent.

Step-by-step explanation:

KARLA has spent $33 on food. She bought milk, cheese, and meat. The milk cost half as much as the cheese and the meat cost four times as much as the cheese. Which equation will help you find the cost of the cheese?

Answers

C+.5c+4c=$33 is the correct equation

Solve for c.
6c + 14 = -5c + 4 + 9c

Answers

the answer for this question is c= -5

Answer:

C equal -5

Step-by-step explanation:

Look at the attachment

Brainliest for anyone if they get this CORRECT.

Answers

hello

it is c

hehehehe hope it helps

Answer:

The option c. (x-6)(x-1)

Step-by-step explanation:

x^2 - 7x +6

S=-7

P=6

x^2-1x-6x+6

x(x-1)-6(x-1)

(x-6)(x-1)

Write the following equation in standard form.
y=-4/5x-2

Answers

Answer:

4x+5y=-2

Step-by-step explanation:

y=-4/5x-2

5y=-4x-2

4x+5y=-2

In 2000, the population of Big Springs was 13 thousand. Use the given doubling
time to predict the population in 2100. Assume a doubling time of 40 years.

Answers

Answer:

The answer is "26179.4".

Step-by-step explanation:

Assume year 2000 as t, that is  t =0.

Formula:

[tex]A= A_0e^{rt}[/tex]

Where,

[tex]A_0 = \ initial \ pop \\\\r= \ rate \ in \ decimal \\\\t= \ time \ in \ year[/tex]

for doubling time,

[tex]r = \frac{log (2)}{t} \\[/tex]

[tex]r = \frac{\log (2)}{ 40} \\\\r= \frac{0.301}{40}\\\\r= 0.007[/tex]

Given value:

[tex]A = A_0e^{rt} \\\\[/tex]

[tex]A_0 = 13000[/tex]

[tex]t= 40 \ years[/tex]

when year is 2000, t=0 so, year is 2100 year as t = 100.

[tex]A = 13000 \times e^{et}\\\\A = 13000 \times e^{e \times t}\\\\A = 13000 \times e^{0.007 \times 100}\\\\A = 13000 \times e^{0.7}\\\\A= 13000\times 2.0138\\\\A = 26179.4[/tex]

Which values of the set {4, 5, 6, 7, 8} make the inequality 27≥5x true?

Answers

Answer:

4 &5

Step-by-step explanation:

5*4 = 20 which is less than 27. 5*5 = 25 which is less than 27.

Hope this helps.

Galen sold tickets for his church’s carnival for a total of $2,820. Children’s tickets cost $3 each and adult tickets cost $5 each. The number of children's tickets sold was 30 more than 3 times the number of adult tickets sold. How many children’s tickets and how many adult tickets did he sell?

Answers

Answer:

a = 195 ; c = 615

Step-by-step explanation:

So, you want to start by forming your equations...

I will use 'c' for children and 'a' for adults for my variables

3a + 30 = c  

(this is because of the info that 30 more tickets than 3 times the amount of children's were sold than adult)

then for equation 2:

3c + 5a = 2820

(this is because of the prices of the tickets and the total money raised)

Then, plug in the equation for c

Your equation should look like:

3(3a + 30) + 5a = 2820

You get:

(9a +90) + 5a = 2820

Then:

14a = 2730

So:

a = 195 adult tickets sold

Plug in a, to find c:

3 (195) + 30 = c

585 + 30 = c

c = 615 children tickets sold

Cody paid $24.00 to join an online music service. If she purchases 15 songs each month at a cost of $1.25 per song, what will be the total amount she has spent after 6 months?

Answers

15 songs x 1.25 per song = $18.75 per month for songs.

18.75 per month x 6 months = $112.50

112.50 + 24.00 = $136.50 total

6th grade math! Help me please :)

Answers

Answer:

50 pictures.

Step-by-step explanation:

It's lit just 35+15=50 pictures

Answer:50

Step-by-step explanation:

Meg took 35 pictures

Kim took 15 pictures

Total pictures =35+15

Total pictures =50

A theater has 35 seats in the first row, 38 seats in the second row, 41 seats in the third row, and so on. How many seats are there in row 16?
There are
seats in row 16.

Answers

Answer:

80

Step-by-step explanation:

35 + 3(x-1) = Total Number of Seats where x represents the row.

35 represents the number of seats in the first row.

3(x-1) represents the three seats added every row after the first.

x = 16 row

35+ 3(16-1)

= 35 + 3*15

= 35+ 45

= 80

Here is a cube: What is the one shape of cross-section we could create by slicing the cube parallel to one of its faces? Choose 1 answer:
triangle
square
trapezoid
pentagon

Answers

Answer:

The answer would be a square

Step-by-step explanation:

Since when you slice a cube parallel to one of its faces, one way or the other you will see a square since a cube is mostly just a 3 dimensional square.

hope this helps you

As a reward for saving his daughter from pirates, the King has given you the opportunity to win treasures hidden inside two of three trunks. The trunk that does not hold any treasure is empty. To win, you must select the correct trunks. The inscriptions on Trunks 1, 2, and 3 are "This trunk is empty," "There is a treasure in Trunk 1," and "There is a treasure in Trunk 2." For each of the following statements, determine whether the Queen who never lies could state this, and if so, which two trunks contain the treasures.(a) The Queen can state, "All the inscriptions are false."If the Queen can state this, in which of the trunks are the treasures hidden?(b) The Queen can state, "Exactly one of the inscriptions is true."If the Queen can state this, in which of the trunks are the treasures hidden?(c) The Queen can state, "Exactly two of the inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?(d) The Queen can state, "All the three inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?

Answers

The following answers are obtained from HW, which it shows answers to.

Answer:

A. The Queen can state, "All the inscriptions are false."If the Queen can state this, in which of the trunks are the treasures hidden?

False, Cannot be determined

(b) The Queen can state, "Exactly one of the inscriptions is true."If the Queen can state this, in which of the trunks are the treasures hidden?

True, Trunk 1 and 3

(c) The Queen can state, "Exactly two of the inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?

True, Cannot be determined

d) The Queen can state, "All the three inscriptions are true."If the Queen can state this, in which of the trunks are the treasures hidden?

False, Cannot be determined

HELP WITH THIS EASY MATH AUESTION DOWN HELOW!! WILL MARK AS BRANLIEST AND I NEED AN EXPLANTION TOO

Answers

Answer:

A. 36, -36

Step-by-step explanation:

y = x^2 - 12x - 5

steps to complete the square

add a 5 to both sides to move the constant

x^2 - 12x = 5

Then take -12, the coefficient of the variable and divide by 2 and square.

12/2 = 6, 6^2 = 36

Then add 36 to both sides.

x^2 - 12x + 36 = 5 + 36

Then subtract the 5 and 36 from both sides.

x^2 - 12x + 36 - 36 - 5

What is the slope of y = -4x -3

Answers

Answer:

Slope = -4

Step-by-step explanation:

Slope intercept form: y = mx + b

m = slope

b = y-intercept

Since m represents the slope, then your slope will equal -4.

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