All categories

2 years ago

Find the area of a circle if the diameter is 13

Mathematics

1 answer:

horrorfan [7]2 years ago

4 0

A=pi times radius times radius

13 divided by 2 equals to 6.5

A=3.14 times 6.5 times 6.5

A=132.665

hope it helps

Can you choose mine as the brainliest answer

You might be interested in

Mai made 6 cups pf vegetable soup and divided the soup equally among 8 containers. how much soup went in each container

Alex787 [66]

the answer is 0.75

reason: 6/8 = 0.75

3 0

3 years ago

Read 2 more answers

PLEASE ANSWER!!!!! After five years of earning interest at an annual rate of 3%, an investment has earned $950 in interest. To t

kvv77 [185]

Problem
After five years of earning interest at an annual rate of 3%, an investment has earned $950 in interest. To the nearest whole dollar, determine the amount of the initial investment.

Result
The initial investment was $6,333.

Solution
P = I/ i · t
P = 950/ 0.03 · 5
P = 6,333.333

8 0

3 years ago

If ab = 5 and a² + b² = 25, then (a + b)² =

prisoha [69]

Answer:

100

Step-by-step explanation:

because 5+5=10

the 10^2=10*10=100

3 0

3 years ago

Read 2 more answers

The discriminant of a quadratic equation is 40. What is the nature of solutions?

RSB [31]

Answer:

It means that the roots of the quadratic equation are real and distinct

Step-by-step explanation:

Here, given the discriminant of the quadratic equation, we want to find out the nature of the solutions.

Mathematically, we can use to determine the nature of the discriminant.

By it’s formula;

D = b^2 - 4ac

We can see that the given discriminant 40 is a positive value. What this means is that the quadratic equation has roots which are real and are distinct

4 0

3 years ago

A furniture company makes large and small chairs. A small chair takes 20 minutes of machine time and 60 minutes of labor to buil

bixtya [17]

9514 1404 393

Answer:

30 small chairs and 24 large chairs

Step-by-step explanation:

Let x and y represent the numbers of small chairs and large chairs built in a day. Then the relations for using available time are ...

20x +50y = 30×60

60x +90y = 66×60

Removing common factors, these can be written in standard form as ...

2x +5y = 180

2x +3y = 132

Subtracting the second equation from the first gives ...

2y = 48

y = 24 . . . . . divide by 2

Using the first equation to find x, we have ...

2x +5(24) = 180

2x = 60 . . . . . . . . . . subtract 120

x = 30 . . . . . . . . divide by 2

The company can build 30 small chairs and 24 large chairs in a day.

4 0

3 years ago