Answer:
A) 32 kg/m
B) 48 kg/m
C) 72 kg/m
Step-by-step explanation:
We are given mass is; m = 4x²
Linear density is the derivative of mass with respect to the position x. So linear density is;
ρ = dm/dx
Differentiating 4x²,we have; ρ = 8x
A)at x = 4; ρ = 8(4) = 32 kg/m
B) at x = 6; ρ = 8(6) = 48 kg/m
C) at x = 9; ρ = 8(9) = 72 kg/m
Answer:
16 inches x 13 stairs = 208 inches. 208 inches/12 = 17.33 (round up) = 18 feet. 4 x 18 = 72 square feet. Width is 4 feet.
Step-by-step explanation:
Answer:
That's
Step-by-step explanation:
Seems right.
Answer:
Perimeter: 4+ mm
Area: mm^2
Step-by-step explanation:
Perimeter:
90/360 * 4 +2 + 2 = 4+
Area:
90/360 * 4 =
Answer:
I guess the answer is c.... I guess it must be c