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
qwelly [4]
3 years ago
11

What is the radius of a circle whose equation is x2+y2+8x−6y+21=0?

Mathematics
1 answer:
melamori03 [73]3 years ago
8 0

Answer:

2 units

Step-by-step explanation:

none

You might be interested in
What is the surface area?
Alina [70]

The top is 4ft by 2 ft, area = 4 * 2=8 square feet.

The back is 1 1/2 ft by 4 feet, area = 1.5 *4 = 6 square feet.

The bottom equals the top = 8 square feet.

The front equals the back = 6 square feet.

The left side is 1 1/2 ft by 2 ft = 2 * 1.5 = 3 square feet.

The right side equals the left side = 3 square feet.


Total area = 8 + 6 + 8 + 6 + 3 + 3 = 34 square feet


5 0
3 years ago
Read 2 more answers
What point will y=2^x and y=3^x have in common?
mixas84 [53]
They both will have a y intercept of 0
6 0
3 years ago
Read 2 more answers
Find the absolute value.<br><br> 1 -31=___<br><br> -1 121=___<br><br> -1 -221=___
Veseljchak [2.6K]
I guess we will never know
5 0
3 years ago
Read 2 more answers
Need help on this one please answer asap
Oliga [24]
First find the hourly rate by dividing $187 by 11 hours. That yields $11 per hour. Now multiple the $11/hour rate by 8 hours of work resulting in $88.
8 0
3 years ago
Harrison went out to buy coffee for his classmates. There are 23 students in his class, counting Harrison himself. Some wanted m
NemiM [27]

Step-by-step explanation:

Let's represent the number of mochas bought with the variable M, and the number of lattes bought with the variable L.

Since there are 23 students, the total number of mochas and lattes bought must be 23. This can be represented with the following equation:

M + L = 23

We can also set up another equation based on the total amount spent on the coffe:

4.30M + 3.50L = 87.70

If we rearrange the first equation, we can solve for M:

M = 23 - L

If we substitute this into the second equation, we can solve for L:

4.30(23 - L) + 3.50L = 87.70

98.9 - 4.3L + 3.5L = 87.7

98.9 - 0.8L = 87.7

0.8L = 11.2

L = 14

Subtituting this back into the original equation, we can solve for M:

M + L = 23

M + 14 = 23

M = 9

Therefore, 9 mochas and 14 lattes were bought.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What’s the answer to this?
    10·1 answer
  • What is the half-life for the zombie population? Explain in terms of exponents
    11·1 answer
  • Answer key to party planning
    13·1 answer
  • What is 3/4 to the negative 1 power
    11·1 answer
  • Select the correct image. ​
    5·1 answer
  • Explain how you would use fraction bars to find the quotient of 10/12 divided by 4/6 What is the quotient?
    12·1 answer
  • Make d the subject of h = d/3 + 2
    9·1 answer
  • -37900 divided by -1750
    9·1 answer
  • 17 to 26 <br> Help me please
    12·1 answer
  • Helppp <br> what is the slope?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!