For the first term of 9x2, we know 3*3 is 9 and x*x is x2. For the middle term, we need two numbers that add to zero and cancel out the middle term, but that multiply to -16.
9x2 - 0x - 16
since the middle is 0, it is cancelled
9x2 - 16
(3x - 4)(3x + 4)
CHECK:
9x2 + 12x - 12x - 16
adding +12 and -12 cancels out
9x2 - 16
ANSWER: (3x - 4)(3x + 4)
Hope this helps! :)
Answer:
Step-by-step explanation:
1.89/14= .135
estimating to the nearest cent would be .14
Answer:
m = 1
Step-by-step explanation:
Slope is defined as m = rise / run.
As we move from (2,2) to (4,4), x increases by 2 and y increases by 2.
Thus, the slope of this line is m = rise / run = 2/2 = 1: m = 1
Answer:
8
Step-by-step explanation:
from the graph, we can see that when x = 1,
f(1) = 10 and g(1)= 2
hence
f(1) - g(1) = 10 - 2 = 8
Answer:
8/10
Step-by-step explanation: