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3 years ago

Simplify 512^1/9 in rational form

Mathematics

1 answer:

ryzh [129]3 years ago

5 0

Answer:

Step-by-step explanation:

512^(1/9)

Write 512 as power of 2:

(2^9)^(1/9)

Multiply the exponents:

2^(9 × 1/9)

2^1

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A circle has an area of 50.24 square centimeters. What is the circumference?

umka21 [38]

Answer:

C=25.13cm

Step-by-step explanation:

A=50.24

A=πr^2

C=2πr

Solving for C

C=2 square root πA=2xsquare root πx50.24=25.12637cm

6 0

3 years ago

Identify the number soutions 5y^3-3y^2+8y=0

PtichkaEL [24]

Answer: 0

Step-by-step explanation:

Step 1: factor left side of equation

y(5y^2-3y+8)=0

Step 2: set factors to equal zero

y=0 or 5y^2-3y+8=0

y=0

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3 years ago

A sample of 8 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop

kenny6666 [7]

Answer:

$\bar X= \frac{1.83+1.85+1.79+1.73+1.69+1.74+1.76+1.70}{8}= 1.76125$

Now we can estimate the population variance with the sample variance given by:

$s^2 = \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = 0.0033839$

And the estimator for the population deviation $\sigma$ is given by :

$\hat \sigma = \sqrt{s^2}= \sqrt{0.0033839}= 0.058172$

Step-by-step explanation:

For this case we have the following data given:

1.83,1.85,1.79,1.73,1.69,1.74,1.76,1.70

First we need to calculate the mean with the following formula:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{1.83+1.85+1.79+1.73+1.69+1.74+1.76+1.70}{8}= 1.76125$

Now we can estimate the population variance with the sample variance given by:

$s^2 = \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = 0.0033839$

And the estimator for the population deviation $\sigma$ is given by :

$\hat \sigma = \sqrt{s^2}= \sqrt{0.0033839}= 0.058172$

7 0

4 years ago

I NEED HELP AND FAST PLZ

lorasvet [3.4K]

Answer:

1. False, 16=8

2. False, 15=243

3. True, 125=125

4. False, 8=9

5. False, 16=64

6. False, 0.0625=2

7. False, 0.0625=0.125

8. True, 64=64

Step-by-step explanation:

4 0

3 years ago

A B C or D need asap please

Paladinen [302]

Answer:multiplication property of -1

Step-by-step explanation:

because it is muliplying by negatives

3 0

3 years ago

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Simplify 512^1/9 in rational form ​

Simplify 512^1/9 in rational form