3 years ago

Please help algebra 2!!

1 answer:

7 0

Let u = x^2

u^2 + 12u - 64

(u - 4)(u + 16)

Back-substitute for u.

(x^2 - 4)(x^2 + 16)

(x + 2)(x - 2)(x + 4i)(x - 4i)

Answer: Choice a.

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36 + 120 : 12-63<br> What's this answer?

NeTakaya

Answer:

Step-by-step explanation:

36 + 120: 12-63

156 : 51

GCF of both sides are three. Divide both sides by three.

52:17

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3 years ago

Marcus hired a car service to drive him to the airport. The bill came to $56.80. He gave the driver a 20% tip. How much money di

aleksandr82 [10.1K]

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3 years ago

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Evaluate the expression. 10!

Mrac [35]

Answer:

3628800

Step-by-step explanation:

10*9*8*7*6*4*3*2*1=3628800

6 0

3 years ago

In step one do you found the volume (in cubic feet) of the main tank(359,006.67). The maximum density of killer whales per cubic

Luba_88 [7]

Answer:

4 killer whales

Step-by-step explanation:

The dimensional analysis is ...

(whales/ft³)(ft³/tank) = whales/tank

Putting the numbers with the units, we get ...

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The maximum number of killer whales allowed in the main show tank is 4.

6 0

3 years ago

Simplify the expression.

Anna71 [15]

Since we have a cubic root, we're interested in factoring cubes inside the root, so that we can take them out. If we factor 648, we have

$648=2^3\times 3^4=2^3\times 3^3\times 3 = (2\times 3)^3\times 3 = 3\times 6^3$

So, we have

$3x\sqrt[3]{648 x^4 y^8} = \sqrt[3]{3\times 6^3\cdot x^3\cdot x \cdot y^6\cdot y^2}=3x\cdot 6\cdot x\cdot y^2\sqrt[3]{3\cdot x\cdot y^2}$

And the result simplifies to

$18x^2y^2\sqrt[3]{3xy^2}$

5 0

3 years ago