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
Evgesh-ka [11]
3 years ago
8

What is the standard equation of a circle?

Mathematics
1 answer:
nadezda [96]3 years ago
6 0
Hello:
the standard equation of a circle : <span>(x – h)2 + (y – k)2 = r2
ridus : r   center A(h , k )</span>
You might be interested in
Show that the difference between any two consecutive square numbers is an odd number​
borishaifa [10]

Step-by-step explanation:

(x+1)squared-squared=2x+1 is always odd because sum of even number and odd number is always odd

5 0
2 years ago
Two different weight loss programs are being compared to determine their effectiveness. Ten men were assigned to each program (t
True [87]

Answer:

WE reject the Null and conclude that one of the drug is more effective than the other.

Step-by-step explanation:

Given :

Diet 1 3.4 10.9 2.8 7.8 0.9 5.2 2.5 10.5 7.1 7.5

Diet 2 11.9 13.1 11.6 6.8 6.8 8.8 12.5 8.6 17.5 10.3

This is a matched pair sample :

The hypothesis :

H0 : μd = 0

H1 : μd ≠ 0

Hence, we intun the difference between the two groups of value :

Difference, d = -8.9,-2.2,-8.8,1,-5.9,-3.6,-10,1.9,-10.4,-2.8

The test statistic :

dbar ÷ (Sd/√n)

dbar = mean of difference = Σd / n = - 49.7 / 10 = - 4.97

Standard deviation of difference, Sd = 4.51

Test statistic :

-4.97 ÷ (4.51/√10)

Test statistic = - 3.485

The sample size, n = 10

df = n - 1 ; 10 - 1 = 9

Critical value (0.10, 9) = 1.833

If Test statistic > |Critical value |

Since 3.486 > 1.833 ; WE reject the Null and conclude that one of the drug is more effective than the other

5 0
3 years ago
Solve the linear system using substitution
levacccp [35]
Hello there!

3x - y = 3
-x + y = 3

We need to solve 3x - y = 3 for y

Let start by adding -3x to both sides

3x - y = 3

3x - 3x - y = 3 - 3x

-y = 3 - 3x
We cannot leave the variable with a negative sign. We must multiply both sides by -1

-y * -1= (3 - 3x)-1

y = 3x - 3

Substitute 3x -3 for y in -x+y=3

-x + y = 3

-x + 3x - 3 = 3

2x - 3 = 3

2x = 3 + 3

2x = 6

x = 6/2

x = 3

Now substitute 3 for x in y=3x -3

y = 3x - 3

y = 3(3) - 3

y= 9 - 3

y= 6

Thus,

The answer is x=3 and y=6

It is always my pleasure to help students like you :)

As always, I am here to help!


7 0
3 years ago
3) This decimal is colored to show<br> 1
MAVERICK [17]
I believe it’s the first one. i’m very sorry if it’s wrong
3 0
3 years ago
Rationalize the numerator <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B3%20%5Ctimes%20a%20%5Ctimes%20b%20%5Cfrac%3Cbr%3E%7
Eva8 [605]

Answer:

rationalize my skill capability

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A triangle with the angles 13 degrees 18 degrees and 127 degrees
    5·1 answer
  • Find the missing value
    5·1 answer
  • Water constitutes approximately 8/25 of the body of an average adult female.About what percent of the average adult female body
    11·1 answer
  • HELP:<br><br> 5a-2&lt;18<br> fill in the blank:<br> a&lt;___?
    12·1 answer
  • The perimeter of a rectangle is P = 2w + 2L, where w is the width of the rectangle and L is the length of the rectangle. Rearran
    11·2 answers
  • Consider this equation <br> 3x+ 1=2x-5
    6·1 answer
  • In the graph, how many miles does Drew drive to work?
    14·1 answer
  • A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe
    7·1 answer
  • A store sells 12 cans of nuts for $21. What is the unit price?
    10·2 answers
  • 5.3 Q4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!