All categories

3 years ago

Find the area for the circle (use 3.14 for pi). Round to the nearest tenth.

Mathematics

2 answers:

Dimas [21]3 years ago

6 0

The formula for the area of a circle is $\sf\pi r^2$ .

$\sf (3.14)(23)^2$

$\sf (3.14)(529)$

$\sf 1661.1yd^2$

s2008m [1.1K]3 years ago

4 0

Answer:

$Area=1661.06\ yd^{2}$

Step-by-step explanation:

Hello

I think I can help you with this

the area of a circle is given by. $Area=\pi * radius^{2}$

where π is the relationship between the length of a circle and its diameter in Euclidean geometry, it is an irrational number and one of the most important mathematical constants.

Step one

Let

r=23 yd

π=3.14

Step two

put the values into the equation

$Area=\pi * radius^{2}\\Area=3.14 * (23 yd)^{2}\\Area=1661.06\ yd^{2}$

I hope it helps , Have a great day.

You might be interested in

Find the degree of the polynomial: a^3+3a^2−5a

emmainna [20.7K]

Answer:

The degree of the polynomial is 3

Step-by-step explanation:

Given:

$a^3+3a^2-5a$

To Find:

The degree of the polynomial= ?

Solution:

The degree of the polynomial is the value of the greatest exponent of any expression (except the constant ) in the polynomial. To find the degree all that you have to do is find the largest exponent in the polynomial

Here in the given polynomial

$a^3+3a^2- 5a$

The terms are

$a^3$

$3a^2$

$5a$

The term $a^3$ has the largest exponent of 3

Note: The degree of the polynomial does not depend on coefficients of the terms

3 0

3 years ago

Pedro le dice a María si cambias los billetes de 10 € que tienes por billetes de 5 € y los billetes de 5 € por billetes de 10 €

Bad White [126]

Answer: Maria has 10 bills of 5€ and 10 bills of 10€.

She has a total of 150€.

Step-by-step explanation:

Let be "f" the number of 5€ bills that Maria has and "t" the number of 10€ bills that Maria has.

Set up a system of equations:

$\left \{ {{f+t=20} \atop {5f+10t=10f+5t}} \right.$

Use the Substitution method to solve the system of equations:

1. Solve for "f" from the first equation:

$f=20-t$

2. Substitute the equation obtained into the second equation and solve for "t".

Then:

$5(20-t)+10t=10(20-t)+5t\\\\100-5t+10t=200-10t+5t\\\\20t-10t=100\\\\t=\frac{100}{10}\\\\t=10$

3. Substitute the value of "t" into the equation $f=20-t$ and evaluate:

$f=20-10\\\\f=10$

Therefore, Maria has 10 bills of 5€ and 10 bills of 10 €.

So the total amount of money she has, is:

$Total=10(5)+10(10)=150$

She has a total of 150€.

5 0

4 years ago

It costs $68 for 16 square feet of flooring. How much does it cost for 12 square feet of flooring?

belka [17]

We know that it costs $68 for 16 square feet of flooring. To find out how much it costs for 12, we first have to find out how much it costs for 1 square foot.
To find that, we would do $68 divided by 16, which is 4.25.
That means 1 square foot costs $4.25.
Then, we would multiply $4.25 by 12 to find how much 12 square feet costs.
$4.25 times 12 is 51.

So, it would cost $51 to have 12 square feet of flooring.

5 0

4 years ago

Which of the following functions gives the length of the base edge, a(v), of a right square pyramid that is 8 inches tall as a f

Reil [10]

Answer:

$\large\boxed{a(V)=\sqrt{\dfrac{3V}{8}}}$

Step-by-step explanation:

The formula of a volume of a square pyramid:

$V=\dfrac{1}{3}a^2h$

a - base edge

h - height of a pyramid

We have H = 8in.

Substitute and solve for a:

$\dfrac{1}{3}a^2(8)=V\\\\\dfrac{8}{3}a^2=V\qquad\text{multiply both sides by}\ \dfrac{3}{8}\\\\\dfrac{3\!\!\!\!\diagup^1}{8\!\!\!\!\diagup_1}\cdot\dfrac{8\!\!\!\!\diagup^1}{3\!\!\!\!\diagup_1}a^2=\dfrac{3}{8}V\\\\a^2=\dfrac{3V}{8}\Rightarrow a=\sqrt{\dfrac{3V}{8}}$

3 0

3 years ago

Which of the following lists contains only even numbers?

IceJOKER [234]

Answer:

Step-by-step explanation:

An even number is a number divisible by 2 and be an integer. An example would be 4/2 = 2

An incorrect even number would be 5

5/2 = 2.5 which isn't odd or even because it isn't an integer.

6 0

3 years ago

Read 2 more answers