what is the area of a circle. Using 3.14 for. A circle with diameter of 8.4 ft.
Round to the nearest tenth if necessary
[tex]\pi[/tex]

Answers

Answer 1

Hey there! I'm happy to help!

First, let's find the radius. The radius is half of the diameter.

8.4/2=4.2

Here's how to find the area of a circle.

Square the radius.

4.2²=17.64

And multiply by pi (3.14 in our case)

17.64(3.14)=55.3896

We round to the nearest tenth, giving us an area of 55.4 ft²

Have a wonderful day! :D


Related Questions

what is y 5(y -10)=-5

Answers

Answer:

y=9

Step-by-step explanation:

5(y-10)=-5

We move all terms to the left:

5(y-10)-(-5)=0

We add all the numbers together, and all the variables

5(y-10)+5=0

We multiply parentheses

5y-50+5=0

We add all the numbers together, and all the variables

5y-45=0

We move all terms containing y to the left, all other terms to the right

5y=45

y=45/5

y=9

The value of y = 9 is correct. Therefore, the solution is y = 9.

To solve the equation 5(y - 10) = -5 for y, follow these steps:

Step 1: Distribute the 5 on the left side of the equation:

5y - 50 = -5

Step 2: Move the constant term to one side by adding 50 to both sides:

5y - 50 + 50 = -5 + 50

Step 3: Simplify the left side and evaluate the right side:

5y = 45

Step 4: Isolate y by dividing both sides by 5:

5y / 5 = 45 / 5

Step 5: Simplify and calculate y:

y = 9

The solution to the equation is y = 9. To verify, substitute y with 9 in the original equation:

5(9 - 10) = -5

5(-1) = -5

-5 = -5

Since both sides are equal, the value of y = 9 is correct. Therefore, the solution is y = 9.

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Solve for x.

[tex] - 2(6 + x) = 18 - 3x[/tex]

x = [?]​

Answers

-2(6 + x) = 18 - 3x
-12 - 2x = 18 - 3x
-2x + 3x = 18 + 12
x = 30

What is the answer to X(x+7)

Answers

Answer:

[tex] \boxed{ \bold{ \boxed {\huge{ \sf{ {x}^{2} + 7x}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{x(x + 7)}[/tex]

Distribute x through the parentheses

[tex] \dashrightarrow{ \sf{x \times x + x \times 7}}[/tex]

[tex] \dashrightarrow{ \boxed{ \sf{ {x}^{2} + 7x}}}[/tex]

Hope I helped!

Best regards! :D

I really need help on this

Answers

i tried to be as detailed as possible...if you’re mainly just looking for answers...look for the arrows like this ↳

Segment AB is congruent to segment AB. This statement shows the ______ property. reflexive symmetric transitive substitution

Answers

Answer:

the answer is reflective

Step-by-step explanation:

Answer:

A). reflexive

Step-by-step explanation:

The correct answer is reflexive. I know because I got it right on the Edge quiz. Trust me!

First step in copying an angle?

Answers

Answer:

Make a point P that will be the vertex of the new angle.

From P, draw a ray PQ. ...

Place the compasses on point A, set to any convenient width.

Draw an arc across both sides of the angle, creating the points J and K as shown.

Step-by-step explanation:

These are the steps to copying an angle

I hope this helps you :)

Answer:

make a point p

hope this helps

An item has a listed price of $95. If the sales tax rate is 9%, how much is the sales tax (in dollars)?

Answers

$8.55 You take the 95 dollars and multiply it by the sales tax (0.09) to get $8.55

Nerissa has 5 pink bows,1 blue bow and 4 purple bows in a box. She will randomly choose 1 bow form the box.
What is the probability nerissa will choose a purple bow?

Answers

4:10. Is the probability

8+1/2(12)=x


Solve please

Answers

Answer:

8+ 1/2 (12) = x

8+ 6 = x

Therefore x = 14

Answer:

The answer is X = 14

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Flip the equation.

8x-3x+2=______ I need the equation to be a no solution

Answers

8x-3x+2=
-(3+2)
-(3-2)
-1
8x-1 is the correct answer

HELP I'M GONNA FAIL​

Answers

Answer:

1/10

Step-by-step explanation:

7000/70000=1/10

1/10 would be the correct answer

What is the product?
(y^2+3y+7][8y^2+y+1)

Answers

Answer:

8 y^ 4 + 25 y^ 3 + 60 y^ 2 + 10y + 7

Hope this helps!

Answer:

8 y^ 4 + 25 y^ 3 + 60 y^ 2 + 10y + 7

Step-by-step explanation:

edge 2021

2x^3 + x^2 – 7x – 6 divided by 2x +3

Answers

Answer:

x^2 -x -2

Step-by-step explanation:

Use polynomial long division.

           0 + x^2  -x  -2

           ___________________________________

(2x+3)  |  2x^3  +x^2  -7x  -6

           -2x^3  -3x^2

            _________

                      -2x^2 -7x

                      +2x^2  +3x

                       __________

                                   -4x  -6

                                    +2x  +6

                                   _______

                                          0

F(x)=-2x^2 -5x+1
H(x)=3(x+3)^2-11

H(f(-1))=?

A.132
B. 136
C.140
D.144

Answers

Answer:

B

Step-by-step explanation:

So we have the two functions:

[tex]f(x)=-2x^2-5x+1\text{ and } h(x)=3(x+3)^2-11[/tex]

And we want to find:

[tex]h(f(-1))[/tex]

So, find f(-1) first. Substitute -1 into f(x):

[tex]f(-1)=-2(-1)^2-5(-1)+1[/tex]

Square:

[tex]f(-1)=-2(1)-5(-1)+1[/tex]

Multiply:

[tex]f(-1)=-2+5+1[/tex]

Add:

[tex]f(-1)=4[/tex]

Now, substitute this into h(f(-1)):

[tex]h(f(-1))=h(4)[/tex]

So, substitute 4 into h(x):

[tex]h(4)=3(4+3)^2-11[/tex]

Add:

[tex]h(4)=3(7)^2-11[/tex]

Square:

[tex]h(4)=3(49)-11[/tex]

Multiply:

[tex]h(4)=147-11[/tex]

Subtract:

[tex]h(4)=136[/tex]

So, our answer is B.

And we're done!

What is 13/100 in simplest form?

Answers

it's already in simplest form, 13 is a prime number

Answer:

0.13

Step-by-step explanation:

help..........me .................

Answers

Answer:

good morning foul human i cannot help you because i cant see your images if you could type them out i might have enough brain cells left to help you adios amigo

Step-by-step explanation:

()  c=3

Which two numbers of the given data set have the same absolute value? Explain your answer in full sentences.

-5, 5, -3, 8
pls help. ;)

Answers

Answer:

The answer is -5 and 5 because when you do absolute value if there is a negative number then it turns into a positive number. Negatives will always turn out as positives when doing absolute value. :)

Step-by-step explanation:

Answer: the two numbers that have the same absolute value is -5, and 5.

Step-by-step explanation:

Absolute will just make any negatives to positive.

So, the absolute value of -5 is 5,  or the absolute value of -3, is 3.

If it's already positive, then nothing happens; it stays the same

So, the absolute value of 8 is 8, nothing is changed.

[tex] {3}^{a} = \frac{1}{9} [/tex]
[tex] {3}^{b} = 9 \sqrt{3} [/tex]

[tex] {3}^{c} = \frac{1}{ \sqrt{3} } [/tex]

Work out the value of a + b + c​

Answers

Answers:
a) -2
b) 5/2
c) -1/2
Answer:

a = -2

b = 5/2

c = -1/2

Step by step explanation:

What is the slope of the line through (-7,-2) and (-6, 7)?
Choose 1 answer:
1
9
B
-9
9

Answers

Answer:

9

Step-by-step explanation:

Slope is rise over run or change y/change x.

7 - -2 = 9

-6 - -7 = 1

Slope = 9/1 or 9

___________________________________________________I AM ALWAYS HAPPY TO HELP :)

Factor each Polynomial. 3x² + 28x + 32=

Answers

[tex]\text{Hello! :)}[/tex]

[tex]\large\boxed{(3x + 4)(x + 8)}[/tex]

[tex]\text{Factor the polynomial:}\\3x^{2} +28x +32\\\\\text{Find two numbers that multiply into 32 and sum up to 28.}\\\text{Take into account the leading coefficient of 3:}\\\\\text{The numbers 4 and 8 work; arrange them so that they sum up to 28:}\\\\(3x + 4)(x + 8)[/tex]

Which inequalities can be used to find the solution set of the following inequality? Check all that apply. |2x – 5| Greater-than-or-equal-to 8 (2x – 5) Greater-than-or-equal-to 8 (2x – 5) Less-than-or-equal-to 8 (2x + 5) Greater-than-or-equal-to 8 –(2x – 5) Greater-than-or-equal-to 8 –(2x + 5) Greater-than-or-equal-to 8

Answers

Answer:

its 1 and 4

1. (2x – 5) ≥ 8

4. –(2x – 5) ≥ 8

Step-by-step explanation:

i just did the test

Answer: A,D

Step-by-step explanation:

Diamond bought a few swirl marbles and divided it equally among four of her friends and her brother, Jordan. While playing, Jordan lost 4 marbles and has only 8 marbles at present. Find how many marbles Diamond bought in all.

Answers

Answer:

45?

9 marbles x 5 (four of her friends plus jake)

Step-by-step explanation:

Someone please help whats the answer

Answers

x=3 hope it helped!!
The answer is A.) x=3

POSSIBLE POINTS: 1
Which of the following situations involve opposite quantities combing to make 0 ?
Stella has a new piggy bank. She adds 3 quarters on Tuesday and then adds another 3 quarters on Thursday.
Devon opens a new checking account with $30. His first purchase made with his new debit card, totals $28.
Joe makes 1 1/2 liters of lemonade and drinks it all during the afternoon.
Brittany is writing a novel. She wrote 4 new pages to finish Chapter 1. When she reviews Chapter 1, she discards these 4
pages and an additional 4 pages.

Answers

Answer:

2) Joe makes 1 1/2 liters of lemonad and drinks it all during the afternoon.

Step-by-step explanation:

1.5 - 1.5=0

I f m ∠ P i s t h r e e l e s s t h a n t w i c e t h e m e a s u r e o f ∠ Q , a n d ∠ P a n d ∠ Q a r e s u p p l e m e n t a r y a n g l e s , f i n d t h e m ∠ P .

Answers

Answer:

The value of angle P is 119 degrees

Step-by-step explanation:

When two angles are supplementary, it means that they add up to be 180 degrees. For example, if we have two angles only on a straight line, then both angles are supplementary angles.

Now, the information we have from the question is that angle P is three less than twice the measure of Q.

What this mean is that if Q is x, then P is 2x-3

So let’s add both to equal 180 since they are supplementary;

x + 2x -3 = 180

3x -3 = 180

3x = 180 + 3

3x = 183

x = 183/3

x = 61

This is the value of Q;

The value of P which we are asked to look for is 2x -3 = 2(61) -3 = 122 -3 = 119 degrees

...............................

What are the equivalent expressions for aº and a " ? Why do
these rules work?

Answers

Hopefully this helps and makes sense to you if you don’t understand ask another question to me or anyone hehe

We are solving for #4

Answer: 3.50p + 5.50p +6 = 51; 61

Answers

Answer: 5 people

Step-by-step explanation:

For this word problem, we can use the description in the problem to construct an equation. Let's use x for number of people.

3.5x+5.5x+6=51         [combine like terms]

9x+6=51                      [subtract both sides by 6]

9x=45                         [divide both sides by 9]

x=5

There were 5 people that went to the fair.

Find the distance between each pair of points (-2,3) , (-7, -7)

Answers

Answer:

D = [tex]5\sqrt{5}[/tex]

Step-by-step explanation:

[tex]d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\d= \sqrt{(-7-(-2))^2+(-7-3)^2} \\d= \sqrt{(-5)^2+(-10)^2} \\d= \sqrt{25+100} \\d= \sqrt{125} \\d= 5\sqrt{5}[/tex]

A rectangle has a height of 7a² and a width of a4 + 5a2 + 4.
Express the area of the entire rectangle.
Your answer should be a polynomial in standard form.

Answers

Answer:

[tex]( {7a}^{2} \times {a}^{4} ) + ({7a}^{2} \times {5a}^{3}) + ( {7a}^{2} \times 4) = {7a}^{6} + {35a}^{5} + {28a}^{2} [/tex]

Wich of the following numbers is larger than 4 1/4 but smaller than 4 3/4

Answers

Answer:

4 2/4

Step-by-step explanation:

If you only want the answer in whole number and quarters, that's the only answer. Otherwise, it could be a lot more answers. Let me know if this helps! :)

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