Answer:
x = ± 
Step-by-step explanation:
Given
x² - 7 = 0 ( add 7 to both sides )
x² = 7 ( take the square root of both sides )
x = ± 
Answer: A is 55 B is 101.25
Step-by-step explanation:
Answer:
check explanation for answers
Step-by-step explanation:
ratios are pretty much just simplified fractions
so just turn the numbers into a fraction and simplify them!
trumpets/violins are 5:3
flutes/clarinets are 17:13
trombones/trumpets are 2:5
violins/total instruments are 12:85
Answer:
Amount after 3 years will be $22496
Step-by-step explanation:
We have given principal amount P = $20000
Rate of interest r = 4 %
Time period t = 3 years
We have to find the amount after 3 years
Amount is given by 
So 

So amount after 3 years will be $22496