Answer:
7.5 ab and cd
4 bd and ac
Step-by-step explanation:
Answer:
The answer is the option B
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Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
Step-by-step explanation:
7*10^10=70,000,000
(70milion)
7*10^15=7000,000,000,000,000