Answer:
2.5 miles per hour
Step-by-step explanation:
hope this helps :)
Step-by-step explanation:
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You can multiply or you can estimate it!
Hope I could help
X^2 - 14x + 42 = 0
x^2 - 14x = -42
x^2 - 14x + 49 = 49 - 42
(x - 7)^2 = 7
x - 7 = (+-) sqrt 7
x = 7 (+-) sqrt 7
solutions are : x = 7 + sqrt 7 and x = 7 - sqrt 7
