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GenaCL600 [577]

2 years ago

15

In a volcano, erupting lava flows continuously through a tube system about 11 kilometers to the sea. Assume a lava flow speed o

f 0.5 kilometer per hour and calculate how long it takes to reach the sea.

1 answer:

Vlada [557]2 years ago

7 0

Answer:

22 hours

Step-by-step explanation:

0.5 km in 1 hr

1 km in 2 hr

11 km in 22 hr

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Select all of the following points that lie on the graph of f(x) = 7 - 3x.

Mila [183]

Answer:

All of the points lie on the graph except for the coordinates (-2,1) and (1,5)

Step-by-step explanation:

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2 years ago

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Which rules of exponents will be used to evaluate this expression? Check all that apply.

tatyana61 [14]

Answer:

Actual correct answer (I checked because the first answer was wrong)

Step-by-step explanation:

x product of powers

quotient of powers

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I got this right the second time.

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2 years ago

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14) 25 , 13, 4, 20,16,3,2,5<br>

Igoryamba

Answer:

2,3,4,5,13,20,25 or

2,4,16,20(even number)

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Step-by-step explanation:

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2 years ago

Solve for x: −2(x + 3) = −2(x + 1) − 4

mash [69]

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4 0

2 years ago

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Which expression is equivalent to

lutik1710 [3]

Answer:

$\frac{\sqrt[4]{3x^2} }{2y}$

Step-by-step explanation:

We can simplify the expression under the root first.

Remember to use $\frac{a^x}{a^y}=a^{x-y}$

Thus, we have:

$\sqrt[4]{\frac{24x^{6}y}{128x^{4}y^{5}}} \\=\sqrt[4]{\frac{3x^{2}}{16y^{4}}}$

We know 4th root can be written as "to the power 1/4th". Then we can use the property $(ab)^{x}=a^x b^x$

<em>So we have:</em>

<em> $\sqrt[4]{\frac{3x^{2}}{16y^{4}}} \\=(\frac{3x^{2}}{16y^{4}})^{\frac{1}{4}}\\=\frac{3^{\frac{1}{4}}x^{\frac{1}{2}}}{2y}\\=\frac{\sqrt[4]{3x^2} }{2y}$ </em>

<em />

<em>Option D is right.</em>

8 0

3 years ago