Answer:
B
Step-by-step explanation:
The volume (V) is calculated as
V = area of triangular face × depth
Area of triangle = bh ( b is the base and h the height )
Here b = 3 and h = 4 , then
A = × 3 × 4 = 6 Km²
Now depth = 2, thus
V = 6 × 2 = 12 Km³ → B
Answer:
We can write:
x + y = -2
xy = -80
We can rewrite the first equation as x = -y - 2 and then plug that into the second equation to get (-y-2) * y = -80 → -y² - 2y = -80 → y² + 2y - 80 = 0 → (y - 8)(y + 10) = 0 → y = 8, -10. Substituting these values into the first equation we get x = -10, 8 so the answer is (x₁, y₁) = (-10, 8) or (x₂, y₂) = (8, -10).
Answer:
12f + 49g
Step-by-step explanation:
12f -7g(-7)
12f + 49g
Answer:
Step-by-step explanation:
Given is a graph which shows decrease in y when x increases.Marked in the I quadrant.
Coordinates in the graph are
(0,8),(1,4)(2,2)(3,1)
We find that for one unit change in x, there is 1/2 change in y
When x increases by 1 units y becomes y/2
So the equation is exponential
Equation satisfying all the coordinates can be written as