You don't have any choices listed.
Anyway 4 % of 73 = 2.92
Answer:
a. 4r² b. 2r c. 6 cm
Step-by-step explanation:
The surface area A of the cube is A = 24r². We know that the surface area, A of a cube also equals A = 6L² where L is the length of its side.
Now, equating both expressions, 6L² = 24r²
dividing both sides by 6, we have
6L²/6 = 24r²/6
L² = 4r². Since the area of one face is L², the polynomial that determines the area of one face is A' = 4r².
b. Since L² = 4r² the rea of one face of the cube, taking square roots of both sides, we have
√L² = √4r²
L = 2r
So, the polynomial that represents the length of an edge of the cube is L = 2r
c. The length of an edge of the cube is L = 2r. When r = 3 cm.
L = 2r = 2 × 3 cm = 6 cm
So, the length of an edge of the cube is 6 cm.
Consider the positive squares of 1,2,3,4, 5, ...
They are 1, 4, 9, 16, 25, ...
Factorize 5400 with regard to these positive squares.
5400 = 4 * 1350
= 4 * 9 * 150
= 4 * 9 * 25 * 6
The positive square free divisors of 5400 are 4,9 and 25.
Their sum is 4+9+25 = 38
Answer: 38
Answer:
C
Step-by-step explanation:
since the triangles are similar then the ratios of corresponding sides are in proportion , that is
=
( substitute values )
=
( cross- multiply )
12 RS = 84 ( divide both sides by 12 )
RS = 7 cm