Seth has 15 cans of regular soda and 20 cans of diet soda. He wants to create some identical refreshment tables that will operat
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
Determine the volume of air
Density is calculated using:
Substitute values for Density and Mass
Convert lb to grams
Solve for Volume
Convert mL to L
Represent using scientific notation
Approximate
Answer:
second option
Step-by-step explanation:
Given
+ 6x² + 5 = 0
let u = x², then
u² + 6u + 5 = 0 ← in standard form
(u + 1)(u + 5) = 0 ← in factored form
Equate each factor to zero and solve for u
u + 1 = 0 ⇒ u = - 1
u + 5 = 0 ⇒ u = - 5
Change u back into terms of x, that is
x² = - 1 ( take the square root of both sides )
x = ± = ± i ( noting that
= i ), and
x² = - 5 ( take the square root of both sides )
x = ± = ±
= ±
×
= ± i
Solutions are x = ± i and x = ± i