4 years ago

PLEASSS HELPPPP

Mathematics

1 answer:

Lera25 [3.4K]4 years ago

6 0

Answer:

-11 + 4

Step-by-step explanation:

When you subtract a negative the sign will switch to plus, so it this case you would switch the - (-4) to a + 4 but you don't change the -11 at the front.

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Solve the equation. Round to the nearest hundredth. Show work.

Elis [28]

Answer:

The value of x = 0.41

Step-by-step explanation:

∵ $6e^{2x}-5e^{x}=6$

Let $e^{x}=y$

∴ $e^{2x}=y^{2}$

∴ 6y² - 5y = 6

∴ 6y² - 5y - 6 = 0 ⇒ factorize

∴ (3y + 2)(2y - 3) = 0

∴ 3y + 2 = 0 ⇒ 3y = -2 ⇒ y = -2/3

∴ 2y - 3 = 0 ⇒ 2y = 3 ⇒ y = 3/2

∵ $y=e^{x}$

∴ $e^{x}=\frac{-2}{3}$ ⇒ refused

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∴ $xlne=ln(3/2)$

∴ x = ln(3/2) = 0.41

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Rasek [7]

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3 years ago

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Billy is helping to make pizzas for a school function. He's made 25 pizzas so far. His principal asked him to make at least 30 p

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Answer:

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Step-by-step explanation:

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