Answer:
49 would be the answer
Step-by-step explanation:
7x9-14
7x9 = 63
63-14 = 49
Problem 1
Plot 3 or 4 of the given points. For example, plot (4,16) and one other point given in the table. Draw a straight line through your points. Look carefully: Where does your line cross the y-axis? If y = 14 (just an example, not the correct value), then the y-intercept is (0,14).
To find the slope of your line, choose any 2 of the given 4 points. Find the slope of the line segment connecting those 2 points. For example:
24 - 16 8
m = ------------- = -------- = 2. The slope of this line is m=2.
8 - 4 4
Now you have both the slope (2) and the y-intercept (b). The equation of this line is thus
y = 2x + b (you found b earlier).
Answer:
$70
Step-by-step explanation:
Interest = Principal x Rate x Time
p = 3500
r = .02
t = 1
multiply the above and you get 70
Answer:
B
Step-by-step explanation:
you can use foil and the graph,
because you can see (in the graph) that the lines intersect at 1 and 4.
just use foil to help figure out which matches the slope.
something else (the normal way) is find which 2 numbers equal to the last coefficient, in this case it can be
-2 and -2, 2 and 2, 4 and 1 or -4 and -1, multiply them and if they make up the last coefficient, and added it equals the second coefficient it is correct.
The formula of the area of a trapezoid is equal to:
Area = (a+b) / 2 * h
Substituting the values.
9 = (2.4 + 3.6) / 2 * h
9 = 6 / 2 h
9 = 3h
h = 3
So the height of the trapezoid is equal to 3m.
