Answer: 452.39m²
Step-by-step explanation:A=4πr2=4·π·62≈452.39m²
Answer: 3rd one
Rearrange the original equation so it fits the model of : ax^2+bx+c=0
Then use the quadratic formula to find all possible answers.
The answer is -3, i had a test with the same question
Answer: -1
Step-by-step explanation:
Considering order of operations, multiplication takes a higher precedent than subtraction. Therefore, you do the multiplication first.
3)

Height = sqrt (34^2 - 30^2) ( using Pythagoras theorem)
= sqrt256 = 16 inches