Answer:
x = 3/2 or 0
Step-by-step explanation:
let the number be x
"4 times a number" : 4x
"4 times a number is decreased by 3" : 4x -3
"this difference is squared" : (4x -3)²
"the result is 9" : (4x -3)² = 9 (solve this equation for x)
(4x -3)² = 9 (square root of both sides)
4x-3 = ±√9
4x-3 = ±3 (add 3 to both sides)
4x = ±3 + 3
Hence
4x = 3 + 3 = 6 ====> x = 6/4=3/2
or
4x = -3 + 3 = 0 ====> x = 0
Answer:
36
Step-by-step explanation:
6 x 6 = 36
now to the nearest tenth it would be
36
so your answer is 36
B) 27
C) 78
D)243
Answer:
The volume of the cone is
Step-by-step explanation:
We know that formulas
Volume of cylinder is
Volume of cone is
we are given
A cone and cylinder have the same height and the same base radius
So, both will have same radius and height
now, we can find ratios
now, we can simplify it
we are given
the volume of the cylinder is 81 cm^3
so,
now, we can plug it and solve for V2
So, the volume of the cone is