Answer:
- The center (2, 2.5), radius 
 / 2 
Step-by-step explanation:
<u>The standard form of the equation of a circle is: </u>
- ( x - h )^2 + ( y - k )^2 = r^2, where ( h, k ) is the center and r is the radius
 
<u>Rewrite the given equation in the standard form:</u>
- 2x^2 + 2y^2 - 8x + 10y + 2 = 0
 - x^2 - 4x + y^2 + 5y = -1
 - x^2 - 4x + 2^2 + y^2 + 5y + (5/2)^2 = -1 + 4 + 25/4
 - (x - 2)^2 + (y + 2.5)^2 = 37/4
 
<u>The center is:</u>
<u>And radius is:</u>
- <u />
 / 2 
 
        
             
        
        
        
Answer:
A.2304
B.5625
C.6776
Step-by-step explanation:
The easiest way to show you is by using calculator. If you can't, try  using Khan Academy if you want.
 
        
             
        
        
        
Answer:
the answer is 589.4
Step-by-step explanation:
In doing this equation you do the order of operations:
(2.1 x 104)= 218.4
(3.5 x 106)= 371
you then add the answers together to get:
218.4 + 371 = 589.4
 
        
             
        
        
        
If the rate of change (ROC) of the function is quadratic, then the function type is cubic
<h3>What is rate of change?</h3>
The rate of change of a function is the rate at which the output values change over the input value
The rate of change of a function is one degree less than the actual function
This means that, a cubic function will have a quadratic rate of change
Hence, the correct option is (d)
Read more about rate of change at:
brainly.com/question/8728504
 
        
             
        
        
        
<span>sin 90° = 1
</span>
cos 0° = 1
There's a simple formula : <em>sin θ = cos (90°- θ)</em> or <em>cos θ = sin (90°- θ) </em>
So : cos 0° = sin (90° - 0°) = sin 90° = 1