Answer:

Step-by-step explanation:
An irrational number is a number that isn't a whole number (integer).
= 7.07
= 1
= 5
= 3
The first one is the only one that isn't an integer. So it is the answer.
You should ask for help,Don't be embarrassed to ask.
Answer:
A
Step-by-step explanation:
Solving for 1995, which is 5 years after 1990, so plug in 5 as t.
n= 1.76(5)² - 13.32(5) + 41
n= 44 - 66.6 + 41
n= 18.4
n≈ 18 days
Answer:
£14.85
Step-by-step explanation:
The total number of tiles needed
= 5 × 3
= 15
∴ The total cost of the tiles
= £0.99 × 15
= £14.85
Y = mx + b
m = slope = -3
y = -3x + b
We need to find b, so plug 7 for x and 8 for y
8 = -3*7 + b
8 = -21 + b
Add 21
29 = b
So the equation is y = -3x + 29.