The answer is (C). All sides and angles of the square is equal. Its diagonals bisect each other and meet at 90°. If two lines are said to meet at 90°, these lines are perpendicular to each other. Therefore, the diagonals of a square is perpendicular to each other
Hello,
12x^4+39x^3+9x²=x²(12x²+39x+9)=x²(12x²+36x+3x+9)=x²(4x(3x+9)+(3x+9))
=x²(3x+9)(4x+1)
=3x²(x+3)(4x+1)
The compatible numbers (numbers you can easily use and calculate in your head) for 48 and 123 would be 50 and 100. 50 x 100= 5,000. Rounding would be 50 and 120. 50 x 120= 6,000. So rounding would provide a closer estimate.
Answer:
A. 
B. 
Step-by-step explanation:
A. 
Where,
Plug in the values to get a polynomial that represents the area of the tool
B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.
Step-by-step explanation:
Michael's Journey Time = 4 hours and 30 mins
=
Speed = Distance ÷ Time
Given Distance = 108km
Time = 4.5 hours
Speed =
