V( cone ) = 21 cm³
note Vof cone = V of cylinder
V ( cone ) = × 63 = 21 cm³
Answer:
y = x + 7
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - x + 3 is in this form
with m = -
Given a line with slope m then the slope of a line perpendicular to it is
= - = - = , hence
y = x + c ← is the partial equation
To find c substitute (4, 12) into the partial equation
12 = 5 + c ⇒ c = 12 - 5 = 7
y = x + 7 ← equation of perpendicular line
Answer:
2.
Step-by-step explanation:
Answer:
<u>3</u>
Step-by-step explanation:
Radius of circle with center R : 2 units
Radius of circle with center R' : 6 units
Scale factor :
- Radius of dilated circle /Radius of original circle
- 6/2
- <u>3</u>
Answer:
Option D.
Step-by-step explanation:
From the given graph it is clear that it is a parabola along to the x-axis.
Vertex form of a parabola along the x-axis is
where, (h,k) is vertex.
From the graph it is clear that the vertex of the parabola is (4,-3). So, substitute h=4 and k=-3 in the above equation.
...(1)
The graph passing through (1,-2), so substitute x=1 and y=-2 in the above equation.
Substitute a=-3 in equation (1).
Therefore, the correct option is D.