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2 years ago

Which expression is equivalent to (xy)z?

Mathematics

1 answer:

ExtremeBDS [4]2 years ago

7 0

The answer to your question would be z·(xy)

I hope this helps!!!!!!!!

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PLEASE HELP WILL MARK BRAINLIEST!

goldenfox [79]

Answer:

Step-by-step explanation:

$12000(1+\frac{.12}{4})^{4*45}=2454040.31463\\=2454040$

7 0

2 years ago

Reduce the fraction, if possible 5) 26 117

KatRina [158]

You can’t reduce
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4 0

3 years ago

A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:

marin [14]

Answer:

$Range = 85$

$\sigma = 28.71$

$Interval = [666.78, 781.62]$

Step-by-step explanation:

Given

The data for 25 undergraduates

Solving (a): Range and Standard deviation

The range is:

$Range = Highest - Least$

From the dataset:

$Highest = 772$

$Least = 687$

So:

$Range = Highest - Least$

$Range = 772-687$

$Range = 85$

The standard deviation is:

$\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n}}$

First, calculate the mean

$\bar x = \frac{769 +691 +............+715}{25}$

$\bar x = \frac{18105}{25}$

$\bar x = 724.2$

So, the standard deviation is:

$\sigma = \sqrt{\frac{(769-724.2)^2 +(691-724.2)^2 +(699-724.2)^2 +(730-724.2)^2 +............+(715-724.2)^2}{25}}$

$\sigma = \sqrt{\frac{20604}{25}}$

$\sigma = \sqrt{824.16}$

$\sigma = 28.71$

Solving (b): The interval of the 95% of the observation.

Using the emperical rule, we have:

$Interval = [\bar x - 2*\sigma, \bar x+ 2*\sigma]$

$Interval = [724.2 - 2*28.71, 724.2 + 2*28.71]$

$Interval = [666.78, 781.62]$

4 0

2 years ago

In a bag or marbles, 12% were red, 16% were blue, and the rest were white. If the bag had 250 marbles, how many were red and whi

Paladinen [302]

Answer:

the correct answer is gg man

Step-by-step explanation:

4 0

2 years ago

Can the domain or the range repeat in a function, which one?

anygoal [31]

We can have values repeat in the range of a function, but not in the domain. A function always has exactly one value in the range associated with a given value in the domain, but it can have multiple values in the domain associated with the same value in the range.

For example, in the equation y = x², we could say that y is a function of x (every y value except 0 has exactly 2 x values associated with it), but the equation y² = x would not describe y as a function of x (every x value except 0 would now have exactly 2 y values associated).

8 0

3 years ago