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
GrogVix [38]
3 years ago
5

Find the length of the radius of the following circle. x² + y² = 16 4 8 16

Mathematics
2 answers:
Naily [24]3 years ago
7 0

Answer:

Graph

Find the properties of the conic section  

x

2

+

y

2

=

16

.

Center:  

(

0

,

0

)

Radius:  

4

Step-by-step explanation:


Morgarella [4.7K]3 years ago
5 0
Please, when you present a list of numbers, such as 4, 8, 16, ..., separate them with commas or semicolons:  4, 8, 16, ...

If x^2 + y^2 = 16, then 16 represents r^2, and r = 4.  r cannot be negative in this type of problem.

You might be interested in
Find the measure of each angle indicated
Elden [556K]

Answer:

86º

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
How many times smaller is 2 than 10?
deff fn [24]

Answer:

5

Step-by-step explanation:

10 / 2 = 5

5 times smaller also means 1/5 as big.

7 0
3 years ago
Read 2 more answers
Given: ∆ABC, m∠C = 90° CB = 8, m∠B = 38º Find the area of a circumscribed circle. Find the area of the inscribed circle.
vitfil [10]

Answer:

Circumscribed circle: Around 80.95

Inscribed circle: Around 3.298

Step-by-step explanation:

Since C is a right angle, when the circle is circumscribed it will be an inscribed angle with a corresponding arc length of 2*90=180 degrees. This means that AB is the diameter of the circle. Since the cosine of an angle in a right triangle is equivalent to the length of the adjacent side divided by the length of the hypotenuse:

\cos 38= \dfrac{8}{AB} \\\\\\AB=\dfrac{8}{\cos 38}\approx 10.152

To find the area of the circumscribed circle:

r=\dfrac{AB}{2}\approx 5.076 \\\\\\A=\pi r^2\approx 80.95

To find the area of the inscribed circle, you need the length of AC, which you can find with the Pythagorean Theorem:

AC=\sqrt{10.152^2-8^2}\approx 6.25

The area of the triangle is:

A=\dfrac{bh}{2}=\dfrac{8\cdot 6.25}{2}=25

The semiperimeter of the triangle is:

\dfrac{10.152+6.25+8}{2}\approx 24.4

The radius of the circle is therefore \dfrac{25}{24.4}\approx 1.025

The area of the inscribed circle then is \pi\cdot (1.025)^2\approx 3.298.

Hope this helps!

6 0
3 years ago
What is the ratio for the surface areas of the rectangular prisms shown below, given that they are similar and that the ratio of
Harrizon [31]

Answer:

9 : 1

Step-by-step explanation:

given a linear ratio = a : b, then the corresponding area ratio is

a² : b²

Here the linear ratio of their edges = 3 : 1, hence

ratio of surface areas = 3² : 1² = 9 : 1


4 0
3 years ago
Anybody Know This. ?
Pavel [41]

Answer:

7 13/10 cm i think

3 0
2 years ago
Other questions:
  • (15 points)<br><br> Helpp me asap! Look at the picture:)
    6·2 answers
  • One number is 6 less than another, their sum is 22
    13·2 answers
  • Supposed two angles are supplementary and one of them measures 31 degree what is The measure of the other angle
    6·1 answer
  • Find the four consecutive odd integers whose sum is -324
    6·1 answer
  • The table shows the cost,c, of buying each number of boxes,b,of cookies. Write an equation that models this situation.
    9·2 answers
  • How do you find the surface area and volume of this?
    14·1 answer
  • (2 + 3) + 4^2 x (5 − 3)=
    10·1 answer
  • If I use the Quotient of Powers Property to simplify this expression, I should ( add, subtract, multiply, divide) the exponents.
    10·1 answer
  • O<br> 1) Which below graph represents direct variation?<br> GRAPH A<br> or<br> GRAPH B<br> Why?
    15·1 answer
  • What is the solution to this system of linear equations?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!