Answer:
Option D : 32.15 square centimeters is the correct answer.
Step-by-step explanation:
Given that:
Area of the circle can be find by the following formula.
Area of circle = pi * radius * radius
The radius of circle in the given figure is 3.2 cm
Area of circle = 3.14 * 3.2 * 3.2
Area of circle = 32.1536 square centimeters
Rounding off to two decimal places.
Area = 32.15 square centimeters
Hence,
Option D : 32.15 square centimeters is the correct answer.
Answer:
Predicted values:
Residuals:
Step-by-step explanation:
For this case we assume the following exponential function:
Where x represent the hours and y the predicted values for each hour. We can find the estimated values like this:
Now we can find the residuals with this formula:
And replacing we got:
( x^4 - 4 x³ + 2 x² - 4 x + 1 ) : ( x² + 1 ) = x² - 4 x + 1
- x^4 - x²
------------------------
- 4 x³ + x² - 4 x
4 x³ + 4 x
-----------------------
x² + 1
- x² - 1
----------------
R ( x ) = 0
( x^4 - 4 x³ + 2 x² - 4 x + 1) = ( x² + 1 ) ( x² - 4 x + 1 )
Yoo
180=interior angle of triangle so
angle TRS IS 180-9X as it is (angles on a straight line)
then angle RTS=5x
and angle TSR=9+x
180=180-9x+5x+9+x
180=-3x+189
180-189=-3x
-9=-3x
x=-9/-3
x=3