There is two ways to do this
4+4+4 = 12
or
4*3=12
either way the answer is 12 4*3 is just like a shortcut of writing it out instead of having to add the numbers together. When it is "4 times 3" it is saying what is the sum of 4 added 3 times? another example can be 9*9 which is like the simplified version of 9+9+9+9+9+9+9+9+9= 81 9*9 = 81 which is the same thing. try this with other numbers and you will see that it will all result the same way.
* = times or "x" which is the multiplication sign
Answer:
47 rows
Step-by-step explanation:
To find the amount of needed rows, we will use the math operation division. We will take the total and divide it by the amount in each row.
846/18=47
To seat 18 people in each row, you will need 47 rows.
Answer:
$237.44
Step-by-step explanation:
Answer:
6.6977 * 10^5.
Step-by-step explanation:
6.7 * 10^5 - 2.3 * 10^2 First convert them to standard form:
= 670,000 - 230
= 669,770
= 6.6977 * 10^5.
Ok, so for parabola a(x-h)^2 +k
abs(a) = 1/(4c) where c is the distance between the focus and directrix.
The distance is 4-1, or 3 (y coord of the focus - y coord of directrix)
so a = 1/(4*3) or 1/12
and the vertex (h,k) is the midpoint of the segment between the focus and directrix, which is (1, 2.5)
the parabola is 1/12*(x-1)^2 + 2.5