Answer:
(x - 3)(x + 7)
Step-by-step explanation:
x^2 + 4x - 21
=> x^2 + 7x - 3x - 21
=> x(x + 7) -3(x + 7)
=> (x + 7)(x - 3)
25 (units of distance/units of time)
The first two seconds are determined between points (0,50) and (2,100). Given these points, finding the slope between them gives you the average rate of change:
Yes sure.
It is given here 
Here you have to make the denominator a natural number.
This one we can do by multiplying 100 with it.So 100 as well we have to multiply with numerator.
so the fraction will be now=
So it will be=
which is equal to 150.And this is the answer. (Answer)
Answer:
x= -4/3
Step-by-step explanation:
Steps
7x +8 = 4X + 4
Subtract 8 from both sides
7x+ 8-8= 4x + 4-8
Simplify
7x=4x-4
Subtract 4x from both sides
7x-4x=4x-4-4x
Simplify
3X = -4
Divide both sides by 3
3X/3 = -4/3
Simplify
x= -4/3