Answer:
Step-by-step explanation:
Option A. All the real values of x where x < -1
Procedure
Solve the inequality:
(x -3)(x+1)>0
That happens in two cases.
1) When both factors >0
x-3>0 and x+1>0
x>3 and x >-1
The intersection is x >3
2) When both factors <0
x-3<0 and x+1<0
x<3 and x<-1
the intersection is x<-1.
We have obtained that the function is positive for the intervals x < -1 and x > 3. But in one of those intervals the function is decresing and in the other is increasing.
You can recognize that the function given is a parabola and, because the coefficient of the quadratic term is positive, the parabola opens upward. Then the function is decreasing in the first interval and increasing in the second interval.
Rounding off to thousandths is referring to the hundredth number(3rd number from right)
if it's >5, it +1 to the thousand's number (4th number from right),
eg. 4570 rounded off by thousand = 5000
if <5 then it reduces to 0.
eg. 3489 rounded off by thousand = 3000
for your case, 2,181,465 rounded off to thousand = 2,181,000
Answer:
-21/2 <-5/2 < - 2 < - 1.75 <-1 <1.75 <9/4
Answer:
-4 (2p+ 3) = -(p+1) - 2
-8p -12 = -p-1-2
-7p=9
p=-9/7
Step-by-step explanation:
