Answer:
B. (-3x-6i)(x+2i)
C. (-3x-6i)(x+2i)
Since they are the same answer choice. Should be (-3x-6i)(x-2i) should be the correct answer.
Step-by-step explanation:
The polynomial -3x^2-12 can be factored using GCF into -3(x^2+4).
x^2+4 is a sum of squares and factors into the form (x+ai)(x-ai).
x^2+4 factors into (x+2i)(x-2i).
We put them together and have -3(x+2i)(x-2i) = (-3x-6i)(x-2i)
The last choice is the right answer. Curves do not have a constant rate of change.
Answer:
y=2x
100 miles
Step-by-step explanation:
The slope is determined by change of y/ change of x
when using the points (0,0)-(50,100) is
100-0/50-0= 100/50=2
so the slope is 2.
Also there is no Y intercept on the equation bc it goes through the origin.
100 miles is the y point for 50 miles per hour
Answer:
B. 6.
Step-by-step explanation:
When x = 3 the prediction is 2.5(3) - 1.5
= 6.