There are 1728 cubic inches in one cubic foot.
A cubic foot is 12"
12* 12" * 12" = 1728 cu/inches
therefore
1344/1728 =. 78 cu ft
I think the first graph is one.
I'm not sure of the second one but I'm sure you could find an online graphic callculator to use and type in the choices to find the answer.
This conic section is an ellipse.
Here: 2a = 10 ( the major axis ) and 2 b = 6 ( the minor axis );
and the formula is:
x² / a² + y² / b² = 1
So: a = 10 : 2 = 5 and b = 6 : 2 = 3.
x² / 5² + y² / 3² = 1
Answer:
The equation is: x² / 25 + y² / 9 = 1.
Answer: All real numbers greater than or less than 9.
Step-by-step explanation: The range is possible y-values. In a parabola the range starts at a particular place then it either goes up or goes down. Since the leading factor has a negative in front of it, the parabola will open downward meaning most likely all y-values will be lest than the include max point. Now let find the max point using the formula -b/2a then substituting that into the parabola. -2/2(-1)= 1, then plug it in. y=-(1^2)+2(1)+8 which equal -1+2+8 which equal 9 so the max point is 9. Since the graph open downward all the points that are possible will either be at 9 or below it so the range is All real numbers greater than or less than 9. or (-∞,∞)∪(∞,9]
C. Because all the have to do is see what the multiply of both numbers are.