3x²+x-5=0
a = 3, b = 1, c= -5
-> ∆ ( delta ) = b²-4ac = 61 > 0
-> x1 =( -b+√∆ )÷ 2a =...
x2 = (-b-√∆)÷2a =...
p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.
Answer:
I hope I helped you^_^
Answer:
33 miles
Step-by-step explanation:
Given:
A car travels 264 miles on 12 gallon of gas.
We need to find the unit rate in miles per gallon.
Now we write the given rate as a fraction.
Divide the numerator and denominator by the denominator
Therefore, the unit rate is 33 miles per gallon.
