I need it by tomorrow
Answer:
987
Step-by-step explanation:
(s.t)(x) = s(x) × t(x) = 3x(2 - x²) = 6x - 3x³
To evaluate (s.t)(- 7) substitute x = - 7 into the product
(s.t)(- 7) = 6(- 7) - 3(- 7)³ = - 42 + 1029 = 987
Answer:
The square of the scale
Step-by-step explanation:
Scaling
Suppose we know the scale of the distances, for example, r=5. It means that for each centimeter in the drawing, it corresponds to 5 cm in the real object being scaled. If we wanted to find the ratio of the areas, we would need to scale both dimensions and the ratio would be the square of the scale factor. In our example, the ratio of the areas would be 25, i.e. each square centimeter would correspond to 25 square centimeters
The rule for finding the ratio of the areas of two objects: The square of the scale
looking at the graph, the y intercept (or where it crosses the y axis) is -2
the slope = change in y/ change in x
from one point to the next, we go up one, to the right one
(up and right are positive, down and left are negative)
= +1/+1
m =1
slope intercept form of a line
y = mx+b
m is the slope, b is the y intercept
y = 1x -2
y = x-2
Answer: y = x-2