Answer:
The equation of the circle having centre (-5,-9) and radius r=3 is
x² + 10 x +y² + 14 y + 65 = 0
Step-by-step explanation:
<u>Explanation</u>:-
From graph The centre of the circle C( -5 , -7)
The radius of the circle r = 3cm from the centre of the given circle
The equation of the circle
From graph the centre ( h, k) = ( -5,-7) and r = 3cm
x² + 10 x +25 +y² + 14 y + 49 =9
x² + 10 x +25 +y² + 14 y + 49 -9=0
The equation of the circle
x² + 10 x +y² + 14 y + 65 = 0
Answer:
whats the question
Step-by-step explanation:
The area of the right angled triangle is 8 cm^2.
According the statement
we have to find the area of the right angled triangle with the help of the given equation.
So, For this purpose, we know that the
A right-angled triangle is a type of triangle that has one of its angles equal to 90 degrees. The other two angles sum up to 90 degrees.
From the given information:
The length of the perpendicular side (call as a) = 2cm
And
The length of the base side (call as b) = 8cm
We know that the area of the right angle triangle is :
Area = ab /2
Then
substitute the terms in it then
Area = 2*8/2
Area = 8 cm^2.
So, The area of the right angled triangle is 8 cm^2.
Learn more about right angled triangle here
brainly.com/question/64787
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Answer:
Step-by-step explanation:
The multiplying factor (2) remains the same in any form in which the variable stands alone. The base of the exponential term can be determined by separating the parts of the exponent:
e^(-2.2t) = (e^-2.2)^t = 0.1108^t
Then the function is ...
P = 2·0.1108^t
_____
This could also be written as ...
P = 0.1108^(t-0.3151) . . . . . where the variable does not stand alone in the exponent
Answer:
y=4x
Step-by-step explanation:
The line goes through the points (0, 0) and (2, 8).
You can plug these in to the slope formula, and the slope is 4
Since the line intersects the y-axis at 0, the y-intersect is 0.
Using these two pieces of information, you now know that the equation is
y=4x+0, or y=4x.
Hope this helps!
