The error is that 9 shouldnt be written as nine it should be written as 3x3 or 3^2. So the answer should be 2^3 x 3^2 because 9 can be divided into even more prime factors of 72.
Its 90 because its a L shaped will means its 90
It should be roughly 50.27? when finding the area of a circle, be sure to use a=πr^2!
<h3>Answer:</h3>
ellipse
<h3>Explanation:</h3>
Written in general form, the equation is ...
... x² +2y² -4y = 0
The coefficients of the squared terms are the same sign, and of different values, so the equation is of an ellipse.
These are the other possibilities that can be determined from the coefficients of the squared terms.
- Same sign, same value: circle.
- Opposite sign: hyperbola.
- Only one squared term: parabola.
_____
Of course, your handy graphing calculator can show you the graph, making it easy for you to determine the conic section that is described.
Answer:
(y+2)= -3(x-7)
Step-by-step explanation:
We can use the slope-intercept formula to write this equation. The slope-intercept form of a linear equation is:
y
=
m
x
+
b
Where m is the slope and b is the y-intercept value.
We can substitute the slope into the formula giving:
y
=
−
3
x
+
b
Next, we can substitute the values from the points in the problem for x and y and solve for b
:
−
2
=
(
−
3x
7
)
+
b
−
2
= −
21
+
b
21
−
2
=
21 −
21
+
b
19
=
0
+
b
19
=
b
We can now substitute the slope from the problem and the value for b we calculated into the formula to write the equation.
y
=
−
3
x
+
19
Another process is to use the point-slope formula. The point-slope formula states:
(
y
−
y
1
)
=
m
(
x
−
x
1
)
Where m is the slope and (
x
1
,
y1
) is a point the line passes through.
Substituting the slope and values from the points in the problem gives:
(y
−
−
2
)
=
−
3
(x-7)
(
y
+
2
)
= −
3
(
x
−
7
)
