3 years ago

Solve for x. x^3=1/27

Mathematics

1 answer:

Tatiana [17]3 years ago

7 0

<em>1/3 is answer. Hope it helps

</em>

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Is the sequence 5, 9, 15, an arithmetic sequence? Explain.

igor_vitrenko [27]

Answer:

Step-by-step explanation:

An arithmetic sequence has a common difference between adjacent terms. Here, the differences are ...

9 -5 = 4
15 -9 = 6

The differences are different, not common, so this is NOT an arithmetic sequence.

6 0

3 years ago

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

kolbaska11 [484]

Answer:

120 liters of 60% alcohol solution is needed

Step-by-step explanation:

Let's assume

x liters of 60% alcohol solution is added

so, we get solution as

$=\frac{60}{100}\times x$

$=0.6x$

we are given

40 liters of a 20% alcohol solution is

$=40\times\frac{20}{100}$

$=8$

so, total alcohol solution is

$=8+0.6x$

now, we can find total solutions

total solutions is

$=x+40$

now, it is making 50% solution

so, we get

$\frac{8+0.6x}{x+40} =\frac{50}{100}$

now, we can solve for x

$\left(8+0.6x\right)\cdot \:100=\left(x+40\right)\cdot \:50$

$800+60x=50x+2000$

$10x=1200$

$x=120$

So,

120 liters of 60% alcohol solution is needed

4 0

3 years ago

What is the circumference of the following circle?

Annette [7]

The formula for a circumference of a circle is 2πr

2 × π × 25 = 157

so your answer is A 157in.

I hope I've helped!

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3 years ago

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Find the length of the third side. If necessary, write in simplest radical form

mrs_skeptik [129]

Answer:the answer is 4 to the square root of 2

Step-by-step explanation:

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When placing a polygon on a coordinate plane for a coordinate proof a vertex at the origin is NOT a good location for the figure

irina1246 [14]

I do not understand the question please clarify. Thank you.

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3 years ago