First, isolate x.
9x^2 = 25
You can actually square root both sides of the equation:
3x = 5
x = 5/3
B. 64
the perfect square is a²+2ab+b²=(a+b)²
x²+2*8x+8²
8²=64
Answer:
(-3, -6)
Step-by-step explanation:
Coordinate = (x-axis, y-axis)
=(x,y)
identify value of coordinate A at x-axis before y-axis
x-axis of A is in the middle of -2 and -4, thus it is -3
y-axis of A when refer to graph is -6
thus answer is (-3,-6)
Answer:
she now has $21 in her pocket
Step-by-step explanation:
Due to given condition we can conclude:
H = 2D
where D is diameter of base and H height of cone
Volume of cone is calculated by:
V = B*H = r^2*pi*H
Now we need to express H in terms of r. H = 2D = 2*2*r because D = 2r
V = r^2*pi*4r = 4r^3*pi
