Answer:
± 5
Step-by-step explanation:
2x/-5 = -10/x
2x^2 = 50
x^2 = 25
x = ± 5
Answer:
9 and 3
Step-by-step explanation:
Answer:
21120 hours long
Step-by-step explanation:
42240=20 miles
42240/2=21120h
The correct answer for this question is "The discriminant is equal to −16, which means the equation has no real number solutions."
<span> −1 = 5x2 −2x
</span><span>5x2 −2x + 1 = 0
</span>
To get the discriminant value, use this formula
= b^2 - 4ac
= (-2)^2 - 4(5)(1)
= 4 - 20
= -16
