Answer:
650%
Step-by-step explanation:
Answer:
5/7
Step-by-step explanation:
Make both of the fractions into improper fractions, 2 2/7 is 16/7 and 1 4/7 is 11/7, then, subtract the improper fractions numerators. 16-11=5.
Answer:
true
Step-by-step explanation:
Answer:
1.42
Step-by-step explanation:
Answer:
-5.7
Step-by-step explanation:
OUR EQUATION IS A QUADRATIC EQUATION
Let Δ be our dicriminant :
- a= 1
- b= 5
- c= -4
- Δ= 5²-4*1*(-4) =25 +16 =41≥0
- so we have two solutions x and y
- x= (-5-√41)/2 = -5.7