Answer: 12.6 m
Step-by-step explanation:
Use the pythagorean theorem, we get that the height, or x, is
sqrt(22x22-18x18) = sqrt(484-324) = sqrt(160) = 4sqrt(10) = 12.6 m
The total cost of the meal will be $54.
45 + 20% = 54
Answer:
x = 49.84
Step-by-step explanation:
We are given an equation of unknown x and we have to solve the equation for x.

⇒ 
⇒
{Since we know that ln AB =ln A + ln B}
⇒ 
⇒
{Since we know that ln A/B = ln A - ln B}
⇒ 
⇒ 
⇒
{Converting logarithm to exponent form}
⇒ x = 49.84 (Approximate) (Answer)