Answer:
x is less than -3
Step-by-step explanation:
3x^2+9x<0
x^2+3x<0
x(x+3)<0
x+3<0
x<-3
47 and 48 are the integers.
Step-by-step explanation:
Let,
x and x+1 be the integers, therefore, according to statement;

2nd Integer = x+1
2nd Integer = 47+1
2nd integer = 48
47 and 48 are the integers.
Keywords: Addition
Learn more about addition at:
#LearnwithBrainly
(1) The train travels 4 miles per gallon.
(2) The slope of the graph is 
Explanation:
(1) The miles that train travels per gallon is given by

Dividing, we have,

Thus, the train travels 4 miles per gallon.
(2) To determine the slope, let us consider two points from the graph.
The coordinates are
and 
Thus, substituting the coordinates in the slope formula, we get,

Simplifying, we have,

Thus, the slope of the graph is 
A graphing calculator shows the ball reaches its maximum height of 69 feet at
t = 2 seconds.