X^4 - x^2 + 9 - (x^3 + 3x^2 + 12) =
x^4 - x^3 - 4x^2 - 3
Step-by-step explanation:
Total number of legs = 80
So if there are 10 mammals so there legs = 40
And the no of resident birds should be twice
So there are 20 resident birds and number of legs = 20 × 2 = 40
There is no image, but based off of actual recipes i would say probably C
Answer:
Step-by-step explanation:
x= (-2 -1)h
x= (-2-1)4= -12
As what I can observe, the pathway can be formed with 2 right triangles. Thus, I'll get the area of the 2 right triangles and multiply its area by the paving cost per square meter.
Area of Right Triangle: ab / 2
a = 6 2/3 m ⇒ 20/3 m; b = 3m
Area of 1 triangle= (20/3 m * 3 m) ÷ 2 = 20 ÷ 2 = 10 m²
Area of 2 triangles = 10m² * 2 = 20 m²
Total cost = $40 * 20m² = $800