9514 1404 393
Answer:
27 cm³
Step-by-step explanation:
The surface area of a cube is ...
SA = 6s²
Then the edge length is ...
54 cm² = 6s² . . . . . please note that cm³ is not the appropriate unit for area
9 cm² = s² . . . . . .divide by 6
3 cm = s . . . . . . . take the square root
The volume of a cube is ...
V = s³
V = (3 cm)³ = 27 cm³
The volume of the cube is 27 cm³.
Answer:
about 201 ft of fencing
Step-by-step explanation:
Including the path the radius would be 32 ft. and the diameter is 64 ft.
C = πd where C is the circumference and d is the diameter.
So, C ≅ 3.14(64) ≅ 201 ft.
Answer is C.) triangle 1 and triangle 3
triangle 1 and triangle 3 are congruent by SAS
Answer:
D
Step-by-step explanation:
Area of triangle= ½ ×base ×height
Since the length of the base and the height of the triangle is equivalent to the length of a side of the square, s,
area of triangle
= ½ ×s ×s
= ½s²
Given that the area of the triangle is 12.5 units²,
½s²= 12.5
Multiply both sides by 2:
s²= 12.5(2)
s²= 25
Square root both sides:
s= 5 units
(reject negative value since s > 0)
Answer:
3x^2 -2x-6
Step-by-step explanation:
If f(x)=3x^2-2 And g(x)=2x+4,
(f-g)(x) = 3x^2-2 -(2x+4)
Distribute the minus sign
3x^2 -2-2x-4
Combine like terms
3x^2 -2x-6
