Answer:
$25.96
Step-by-step explanation:
First, you turn the percent into a decimal, which gives you .18. Then, you multiply $22 by .18. Finally, you add the $3.96 that you get by multiplying $22 by .18, and you get the answer that is above. Plz mark brainliest if correct.
<u>Given</u>:
The coordinates of the points A, B and C are (3,4), (4,3) and (2,1)
The points are rotated 90° about the origin.
We need to determine the coordinates of the point C'.
<u>Coordinates of the point C':</u>
The general rule to rotate the point 90° about the origin is given by
![(x, y) \Rightarrow(-y, x)](https://tex.z-dn.net/?f=%28x%2C%20y%29%20%5CRightarrow%28-y%2C%20x%29)
Substituting the coordinates of the point C in the above formula, we get;
![(2, 1) \Rightarrow(-1, 2)](https://tex.z-dn.net/?f=%282%2C%201%29%20%5CRightarrow%28-1%2C%202%29)
Therefore, the coordinates of the point C' is (-1,2)
Answer: Function, not a function, Function, not a function
Step-by-step explanation:
For it to be a function, each value of x has to map onto one value of y.
- This is a function.
- Not a function since x=-1 has more than one y value.
- This is a function
- Not a function since x=-6 has more than one y value.
Use the quadratic formula to solve. the answer is the third one down
x= -sqrt10 - 4 and sqrt10 - 4
or in their notation above x= -4+/-10--sqrt
300 divide by 15 to find per day which is 20 days