1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PtichkaEL [24]
3 years ago
5

Which is the area of a circle with a radius of 5 units? (use 3.14 for )?

Mathematics
2 answers:
Sauron [17]3 years ago
6 0
The area of a circle is A=πr². 
Since π is about 3.14 we can substitute that into the equation.
So A=3.14×r²
We can substitute the given radius for r.
A= 3.14 × 5²
When a number is squared, or has the two over it, we multiply it by itself. 
5 × 5= 25
A= 3.14 × 25
Simplify this and the area of the circle is about 78.5
A≈78.5
LuckyWell [14K]3 years ago
4 0

Answer:

The area of circle is 78.5 units².

Step-by-step explanation:

Area of the circle is defined by the formula A = π r²

Here r = radius of the circle and value of π = 3.14

Now by putting these values in the formula  we can get area of the circle.

A = (3.14) × 5²

A = 3.14 × 25

A = 78.5 units²

The area of circle is 78.5 units²

You might be interested in
Charlie runs a book rental business. He currently charges $3 per book and rents out an average of 38 books a day. According to a
Degger [83]

Answer:

The equation that models this scenario b(x)=(3+0.5x)(38-4x)

Step-by-step explanation:

First we convert 50 cent into dollar,

1 cent =\frac{1}{100} dollar

1 cent = 0.01 dollar

50 cent = 0.5 dollar

According to question,

x is the number of 50¢=$0.5 price increases.

b(x) is the revenue generated

He currently charges $3 per book.

i.e. price of book = 3+0.5x

Quantity or average = 38 per day

According to a study, for every 50¢ increase in rental price, the average business can expect to lose 4 rentals a day.

i.e. quantity became 38-4x

Revenue = Price × Quantity

The required equation is given by,

b(x)=(3+0.5x)(38-4x)

8 0
3 years ago
El entrenamiento de basquet se una situación de una institución educativa debe elegir a uno de los dos deportistas que están en
stiv31 [10]

Answer:

los pala de depotistas ingrese banca para tomar la decision

Step-by-step explanation:

7 0
3 years ago
A circle has a diameter of 26 units. What is the area of the circle to the nearest hundredth of a square unit? UseC=pi d
IrinaVladis [17]

Answer:

A circle diameter of 26 units is 530.93

I did the math in my head

4 0
4 years ago
Find the product.<br><br> -a 2b 2c 2(a + b - c)
ratelena [41]

Answer:

I think the answer is

{ - 8a}^{2}  {b}^{2}  -  {8ab}^{3}  +  {8ab}^{2} c

4 0
3 years ago
The dimensions of a carriage are:
jasenka [17]

Answer:

Step-by-step explanation:

length * width * height = 1050 cubic ft

(10x + 5)* (2x -1) * (x +3) = 1050

(10x + 5 )(2x-1) = 10x*(2x - 1) + 5*(2x -1)

                       = 10x*2x - 10x*1 + 5*2x  - 1*5

                       = 20x² - 10x + 10x - 5 = 20x²  - 5

(10x + 5)(2x -1)(x+3) = (20x² -5) *(x + 3)

                               =20x²*(x +3) - 5*(x +3)

                               = 20x³ + 60x² - 5x - 15

20x³ + 60x² - 5x - 15 = 1050

20x³ + 60x² - 5x - 15 - 1050 = 0

20x³ + 60x² - 5x - 1065 = 0

By trial and error method , (x  -3 ) is a factor

Synthetic method:

3     ( 20    60       -5           -1065

      (          60        360        1065

         20   120        355           0

20x² + 120x + 355 = 0

Divide the equation by 5

4x² + 24x + 71 = 0 . Solving this equation gives imaginary number. So, ignore these values.

So, value of x = 3

height = 3+ 3 = 6 ft

Length = 10*3 + 5 = 30 + 5 = 35ft

Width = 2x - 1 = 2*3 - 1 = 6 - 1 = 5 ft

Check: length * width * height = 35 * 5 * 6 = 1050 cubic ft

5 0
3 years ago
Other questions:
  • Suppose we want to write 2/5
    11·2 answers
  • An equipment rental company charges a flat rate of $25, plus $13 per day for insurance. Kyle has $121. Write an inequality to re
    11·1 answer
  • 5(x + 8) + x + y; x=3 and y=30
    11·2 answers
  • Write a real word problem that you can solve by writing an equation the answer to the problem must be 6
    6·1 answer
  • Find The Temperature After a drop of 9°C from -2 °C ​
    5·1 answer
  • 3 divided by 6 it hard
    12·2 answers
  • The volume of the cylinder is<br>in.<br>​
    14·1 answer
  • The frequency distribution representing the number of frequent flier miles accumulated by employees at Brumley Statistical Consu
    7·1 answer
  • Which of the following describes the transformation of p(x)=x3 to the function q(x)=−(x−6)3−4 ?
    13·2 answers
  • A car dealership pays 8,350 for a car. They mark up the price by 17% to get the retail price. What is the retail price of the ca
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!