Answer:
The solution is x =2 for the given equation 
Step-by-step explanation:
We need to find the solution for x in the given equation.

Solving:
Subtract
from both sides

Taking square on both sides

Putting values and solving

Verifying the solution by putting values of x in given equation
Putting x=18

So, x=18 is not solution o given equation.
Putting x = 2

So, x=2 satisfies the equation
The solution is x =2 for the given equation 
Answer: Each flower costs $0.38.
Step-by-step explanation:
1 dozen = 12 units
Flowers in each tray = 3 dozen = 3 x 12 = 36
Flowers in 20 trays = 20 x 36 = 720
Price of 20 trays = $ 273.60
Price of each flower = (Price of 20 trays ) ÷ (Flowers in 20 trays)
= 273.60 ÷ 720
= $ 0.38
Hence, each flower costs $0.38.
Answer:
1 paperback is $3.55 and 1 notebook is $3.59 and those items cost less than $3.75.
Step-by-step explanation:
3 paperbacks= $10.56
1 paperback= $10.56 ÷ 3 = $3.55
4 notebooks= $14.36
1 notebook= $14.36 ÷ 4 = $3.59
3 puzzles= $11.85
1 puzzle= $11.85 ÷ 3 = $3.95
4 picture frames= $15.20
1 picture frame= $15.20 ÷ 4 = $3.80
I believe my teacher said irrational numbers.
Answer:
A) 16.0 mm
Step-by-step explanation:
Use the formula C=2 x pi x r
d=2 x r
Solve for d
d= C/pi = 50/pi = 15.91549
And it says to round to the nearest tenth, so the answer is A) 16.0mm