HELP!!!!! Please no copy and pasting but in your own words explain dilation.

Mathematics

1 answer:

Pani-rosa [81]3 years ago

3 0

Answer:

A dilation is a transformation in which the shape stays the same but the size gets different.

Step-by-step explanation:

makes the shape bigger or smaller

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What is equivalent to <br><img src="https://tex.z-dn.net/?f=13%20-%20%20%5Csqrt%7B%20-%2081%7D%20" id="TexFormula1" title="13 -

Radda [10]

√- 81 doesn't result in a rational number because you can't get a negative from squaring any number. Instead you get a number with an imaginary number.

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3 years ago

Fill in the blanks below to make a true statement. In a binomial experiment with n trials and probability of success p, if np (1

Sergeu [11.5K]

Answer:

$\mu_{x}=np$

$\sigma^2_{X}=np(1-p)$

Step-by-step explanation:

∵ When x is a random variable having distribution B(n, p), then for sufficiently large value of n, the following random variable has a standard normal distribution,

$\frac{x-\mu}{\sigma}\sim N(0,1)$

Where,

$\mu=np$

$\sigma^2=np(1-p)$

Here the variable X has a binomial distribution,

Such that, np (1 - p) ≥ 10 ⇒ n is sufficiently large.

Where, n is the total numbers of trials, p is success in each trials,

So, the mean of variable X is,

$\mu_{X} = np$

And, variance of variable X is,

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3 years ago

From 95 to 68 percent decrease

Kay [80]

The decrease is (95-68) = 27 .

As a fraction, the decrease is 27/95 of the original amount.

To change any fraction to a decimal, do the division:

(27) divided by (95) = 0.2842...

To change any decimal to a percentage, move the
decimal point two places that ==> way:

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3 years ago

The base of this regular right pyramid is a square. What is its surface area?

zubka84 [21]

Answer:

○ A) 21 ft.²

Step-by-step explanation:

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