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3 years ago

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Find the product of (x − 3)2 A. x2 + 6x + 9 B. x2 + 9 C. x2 − 9 D. x2 − 6x + 9

1 answer:

Naya [18.7K]3 years ago

7 0

Do not open the link it takes your secret information have a good one brown

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Kyleigh put a rectangular sticker on her notebook.the hiegth of the sticker measures 18cm.the base is half as long as the height

beks73 [17]

The sticker covers 162 square cm.

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3 years ago

The area width is 9ft the total is 27ft

Mashutka [201]

Answer:

3ft

Step-by-step explanation:

because 9 times 3 equal 27

3 0

3 years ago

-8x2(x+8)=8(2+6) how do i solve this and 4n+3/2=2n-5/1?

Marat540 [252]

1) $-8x^2\left(x+8\right)=8\left(2+6\right)$

$-8x^3-64x^2=64$

$-8x^3-64x^2-64=64-64$

$-8x^3-64x^2-64=0$

$-8x^2+0.97035\dots x-7.88051\dots \approx \:0$

$x\approx \:-8.12129\dots$

2) $4n+\frac{3}{2}=2n-\frac{5}{1}$

$4n+\frac{3}{2}=2n-5$

$4n+\frac{3}{2}-\frac{3}{2}=2n-5-\frac{3}{2}$

$4n=2n-\frac{13}{2}$

$4n-2n=2n-\frac{13}{2}-2n$

$2n=-\frac{13}{2}$

$\frac{2n}{2}=\frac{-\frac{13}{2}}{2}$

$n=-\frac{13}{4}$

6 0

3 years ago

1 Find the value of C to that the function probability density function defined as follow, also calculate the man and variance /

Viefleur [7K]

Answer:

$c = \frac{1}{12}$

The mean of the distribution is 0.25.

The variance of the distribution is of 0.6875.

Step-by-step explanation:

Probability density function:

For it to be a probability function, the sum of the probabilities must be 1. The probabilities are 3c, 3c and 6c, so:

$3c + 3c + 6c = 1$

$12c = 1$

$c = \frac{1}{12}$

So the probability distribution is:

$P(X = -1) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 0) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 1) = 6c = 6\frac{1}{12} = \frac{1}{2} = 0.5$

Mean:

Sum of each outcome multiplied by its probability. So

$E(X) = -1(0.25) + 0(0.25) + 1(0.5) = -0.25 + 0.5 = 0.25$

The mean of the distribution is 0.25.

Variance:

Sum of the difference squared between each value and the mean, multiplied by its probability. So

$V^2(X) = 0.25(-1-0.25)^2 + 0.25(0 - 0.25)^2 + 0.5(1 - 0.25)^2 = 0.6875$

The variance of the distribution is of 0.6875.

4 0

3 years ago

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

mariarad [96]

Answer:

Step-by-step explanation:

point est. 0.307824427

99% 2.58

Confidence Interval - "P" values

(0.2914 , 0.3243 )

3 0

3 years ago