7 because if the number closest to the number you are rounding is 5 or more you round up otherwise it stays the same
Independent variables, by definition, have no influence on each other. Therefore, they both must occur, so it's much more challenging. The product of the probabilities reflects the greatly increased odds of occurrence.
The answer is A fycitcifxgcggixhovhcotctix
Answer:
Step-by-step explanation:
let : x The length and y the width you have this system :
xy =60....(1)
x = y+10...(2)
put the value for x in (1): (y+10)y =60
the quadratic equation is : y² +10y - 60 = 0
Δ =b² - 4ac a = 1 b= 10 c= - 60
Δ =10² - 4(1)(-60) = 324 =18²
y 1 = (-10-18)/2 negatif...... refused
y 2 = (-10+18)/2 =4
the width is 4