Answer:
a) 
b) The pollution level at 4 o'clock in the afternoon is of 280 parts per million.
Step-by-step explanation:
The pollution level in the center of a city at 6 am is 30 parts per million and it grows in linear fashion by 25 parts per million every hour.
This means that the pollution in t hours after 6 am is given by:
, which is the answer to question a.
b. The pollution level at 4 o'clock in the afternoon
4 in the afternoon is 10 hours after 6 am, so this is y(10).

The pollution level at 4 o'clock in the afternoon is of 280 parts per million.
Answer:
Step-by-step explanation:
<SRQ = 270 degrees
<RPQ is just 31 degrees short of that amount.
<RPQ = <SRQ - 31
<RPQ = 270 - 31
<RPQ = 239
Answer:
Step-by-step explanation:
Let's make a complex of functions
y^2 = 8x
y = 2x
Now let's solve it
(2x)^2 = 8x
4x^2 - 8x = 0
4x(x - 2) = 0
x = 0, 2
y = 0, 4
So the answer is (2, 4)
Hope you like it, study well
Answer:
(x, y) → (–x, –y)
Step-by-step explanation:
The rule for 180° rotation about the origin is

The coordinates of the image are obtained by negating both the x and y coordinates of the preimage.
Whether the rotation is clockwise or counterclockwise, the rule remains the same.
The correct option is (x, y) → (–x, –y)
5/6 is the answer
3/2 is bigger than 1
1/4 is smaller than 1/2
2/4 is equal to 1/2