All categories

3 years ago

4×6=6×4 is an example of what property

Mathematics

2 answers:

Klio2033 [76]3 years ago

7 0

<span>Commutative property of multiplication.</span>

harkovskaia [24]3 years ago

6 0

Communicative property of multiplication

You might be interested in

what is the approximate length of arc s on the circle ? A) 5.23 in B) 41.87 in C) 52.36 in D) 104.67 in

vovangra [49]

Answer:

Step-by-step explanation:

3 0

2 years ago

Kelly has $25 in her purse, and Dante has d dollars in his wallet

mariarad [96]

The equation will be:

25 + d = t

where t is total money

6 0

3 years ago

What is the answer one, two, three, four, five, six,

aleksley [76]

The answer is x=1
x^5=1
x=5[square]1
x=1

6 0

2 years ago

Read 2 more answers

Sum of 1/2*3 +1/3*4 +1/4*5 ..1/99*100

geniusboy [140]

Answer:

11∗2+13∗4+15∗6+⋯+199∗100=?

=(1−12)+(13−14)+(15−16)+⋯+(199−1100)

=(1+13+15+17+⋯+199)−(12+14+16+⋯+1100)

=(1+13+15+17+⋯+199)−12(1+12+13+⋯+150)

=∑k=15012k−1−∑k=15012k

Continue further.

4 0

2 years ago

Is the environment a major issue with Americans? To answer that question, a researcher conducts a survey of 1255 randomly select

Furkat [3]

Answer:

The point estimate of this proportion is $\pi = 0.5857$

The 95% confidence interval to estimate the proportion of Americans who feel that the environment is a major issue with them is (0.5584, 0.6130).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 1255, \pi = \frac{735}{1255} = 0.5857$

The point estimate of this proportion is $\pi = 0.5857$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5857 - 1.96\sqrt{\frac{0.5857*0.4143}{1255}} = 0.5584$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5857 + 1.96\sqrt{\frac{0.5857*0.4143}{1255}} = 0.6130$

The 95% confidence interval to estimate the proportion of Americans who feel that the environment is a major issue with them is (0.5584, 0.6130).

7 0

3 years ago

Read 2 more answers