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
Sladkaya [172]
3 years ago
7

The radius of a circle is 4 centimeters. What is the circle's area? Use 3.14 for ​.

Mathematics
1 answer:
MissTica3 years ago
5 0

Answer:

A = 50.2 cm^2

Step-by-step explanation:

If the radius is r = 4 cm, the area of the circle is A = (3.14)(4 cm)^2, or

A = 50.2 cm^2

You might be interested in
Please help me with this
Len [333]

Answer:

60 degrees

Step-by-step explanation:

To first solve this problem, we need to figure out the size of an interior angle for a regular hexagon.

This can be done with the formula :

angle = \frac{(n-2)*180}{n} , with n being the number of sides

A hexagon has 6 sides so here is how we would solve for the interior angle:

\frac{(6-2)*180}{6}=120 , with n= 6 sides

Now that we know that each interior angle in the hexagon is 120 degrees, we can now turn our attention to the rhombus.

The opposite angles of the rhombus are congruent, so the two larger obtuse angles are congruent, and so are the two smaller acute angles.

It is also important to note that a rhombus is a quadrilateral, so all of its interior angles add up to 360 degrees.

Looking at the rhombus, we already know one of the angles because it is shared by the interior angle of the hexagon, so the two larger angles in the rhombus are both 120 degrees.

But what about the smaller angles? All we need to do is subtract the two larger angles form 360 and divide by 2 to find the angle.

\frac{360-2(120)}{2} = 60 , so the smaller angle in the rhombus is 60 degrees.

Now that we know both the interior angle and smaller angle of the rhombus, we can find x.

Together, angle x and the angle adjacent to it makes up an interior angle of the hexagon, so x plus that angle is going to equal to 120 degrees.

All we need to do is solve for x:

x+60=120

x=120-60

x = 60 degrees

3 0
3 years ago
What is the Square root of -18
Montano1993 [528]

Answer:

3i square root 2

Step-by-step explanation:

5 0
2 years ago
Find the slope of the line that passes through (10,7) and (1,9)
Simora [160]

Answer:

Step-by-step explanation:

Use the slope formula

(x2-x1)/(y2/y1)

substitute the values

(1-10)/(9-7)

solve

-9/-2

simplify

9/2 or 4.5

6 0
3 years ago
I PROMISE BRAINLIST... IT'S SIMPLE PLEASEEEE
ser-zykov [4K]

Answer:

11. 3^2 • 3^5 < 3^8

12. 3^3 • 3^3 > 3^5

13. Option C.

Step-by-step explanation:

11. Which of the following expressions is true?

A.  4^3• 4^4 = 412

4^3• 4^4 = 4^7 = 16384  ❌

B. 5^2 • 5^3 > 5^5

5^2 • 5^3 = 5^5 ❌

C. 3^2 • 3^5 < 3^8

3^2 • 35 = 315 ✔️

D. 5^2 • 54 = 58

5^2 • 54 = 1350 ❌

12. Which of the following expressions is true?

A. 8^3 • 8^2 < 8^4

8^3 • 8^2 = 8^5 ❌

B. 4^4 • 4^4 = 4^16

4^4 • 4^4 = 4^8 ❌

C. 2^2 • 2^6 < 2^8

2^2 • 2^6 = 2^8 ❌

D. 3^3 • 3^3 > 3^5

3^3 • 3^3 = 3^6 ✔️

13. Write the value of the expression: 3^4/3^4

3^4/3^4 = 1

The correct answer is C. 1 ✔️

4 0
3 years ago
What is the simplified expression for the expression below 4(x+8)+5(x-3)
Alexxx [7]

Answer:9x+17

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
Other questions:
  • 4. A shipping company is considering which of these two boxes to use for shipping. Each box costs the same amount of money to sh
    15·1 answer
  • Question 1 (1 point)
    15·1 answer
  • The length of a rectangle is 5 cm more than the width. The perimeter is 50 cm. Find the length and width.
    6·1 answer
  • Please help me!
    12·1 answer
  • What is the area of triangle LMN?
    15·2 answers
  • Use the law of sines to solve the triangle. If two solutions exist, find both. Found your answers to two decimal places.
    15·1 answer
  • A bag contains red marbles and black marbles. For every 1 black marble,
    12·1 answer
  • 11. How much did the engineering project change the vertical height of the tower? Did the height increase or decrease? Explain h
    10·1 answer
  • 1. Student ID number at a certain University are made up of a letter, followed by six 1-digit
    6·1 answer
  • HELP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!