Answer:
Is this
Step-by-step explanation:
Answer:
2.30/7.5
Step-by-step explanation:
4.30-2=2:30
2.5-10=7.5
The solution of the equation x2+7x is 0, -7 using the quadratic formula.
Step-by-step explanation:
x2 + 7x = 0
-b ± √
b2 - 4(ac)/ 2a
substitution,
a = 1, b = 7, c = 0
= -7 ± √(7)2 - 4(1 x 0) / 2 x 1
= - 7
± 7 / 2
x = 0 , -7
There are 80.5 tens in 805