Technically only 1...
If you have to use 4 rows there is only one option;
1 1 1 2
1 1 2 1
1 2 1 1
2 1 1 1
Each number represents the total kids in a row.
1st number is row 1 second number is row 2 etc.
If you can use 2 or 3 rows there are some more answers.
Answer:
$93
Step-by-step explanation:
<em>It izz wat it izzzz!!!</em>
Answer:
1/2a-19=-13
Step-by-step explanation:
One half of a number represents the phrase "1/2a" (in this case the variable/number is 'a'". Then because it says "nineteen less than", that means you subtract 19 from one half of the variable.
Well, if the radius is 10, then the circumference is
![\frac{2*10*22}7=\frac{440}7](https://tex.z-dn.net/?f=%5Cfrac%7B2%2A10%2A22%7D7%3D%5Cfrac%7B440%7D7)
What's the unit? Either way, 22 rev. per minute means each minute you go by
![22*\frac{440}7=\frac{9680}7](https://tex.z-dn.net/?f=22%2A%5Cfrac%7B440%7D7%3D%5Cfrac%7B9680%7D7)
units per second. Now you got the linear speed, just find out the time by dividing the distance by the speed!
So, what's the unit for the radius?
Answer:
y + 20 = 9(x + 2)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the lie
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 2, - 20) and (x₂, y₂ ) = (9, 79)
m =
=
= 9
Using (a, b) = (- 2, - 20), then
y - (- 20) = 9(x - (- 2)), that is
y + 20 = 9(x + 2)