Answer:
No solution
Step-by-step explanation:
10+2x=2x+8
2x=2x-2
0≠-2
Answer:
No because the slopes arent the same (I’m guess it was -4y and not -4)
Step-by-step explanation:
Answer:
21 cm by 21 cm
Step-by-step explanation:
The formula for the area of a square is A = x^2, where x is the length of any one side of the square. Here,
441 cm² = x²
This actually has two roots: {√441, -√441), but since x must be positive here, to be a dimension of the square, we choose +√441, or +21.
The dimensions of the square are 21 cm by 21 cm.
There are four (4) diagonals: 3 face diagonals and one space diagonal. We assume you are interested in the space diagonal.
The face diagonal of the 3×4 face has length
d₃₄ = √((3 ft)² +(4 ft)²) = √(25 ft²) = 5 ft
Taking the 5 ft edge and the 5 ft face diagonal as sides of the triangle with the space diagonal as its hypotenuse, we find the length of the space diagonal to be
d = √((5 ft)² +(5 ft)²)
d = 5√2 ft
The space diagonal of the rectangular solid is 5√2 ft ≈ 7.07 ft.
Perimeter = 2*(L + W) = 2*(12 + 5) = 2*17 = 34
Perimeter = 34 m
Option D.
