Answer:
n-58
Step-by-step explanation:
X=-5.5 the other zero would be x=-0.5 but that’s not an option.
Answer:
40 units per sec
Step-by-step explanation:
The average rate of change in this case is the change in y over the first three seconds (which is 220 - 100, or 120) divided by the elapsed time (which is 3 seconds).
120
Thus, we have ------------ = 40 units per sec
3
(4x^2 -25) /( 2x+5)
Factorise the numerator
((2x)^2 - (5)^2 ) / ( 2x+5)
Applying the Difference of squares
= ((2x +5)(2x -5))/ (2x+5)
(2x+5) cancels in both numerator and denominator
That implies ,
= (2x-5) , with restriction 2x+5 not equals to 0
or x not equals to -5/2
So the first one is the correct answer
(2x+5) , restriction , x not equals to -5/2
Answer:
5/13
Step-by-step explanation: