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3 years ago

Please I need an answer fast

Mathematics

1 answer:

KiRa [710]3 years ago

5 0

Malia's unit rate is greater than bill's because $8.10 per hour is greater than $8.05 per hour.

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You loan a friend $3,000. You charge 5.4% interest and they will pay you back in 6 months. How much interest will your friend ha

Hoochie [10]

Answer:

The answer is 1092

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

What is the product of 36 and 80

alexdok [17]

The product of 36 and 80 is 2880

4 0

3 years ago

Uh yes ok i need help rn.

Hatshy [7]

Answer:

y = 8.5x

Step-by-step explanation:

the amount of money (y)

amount per hour (8.5) times the hours (x)

8 0

2 years ago

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A source of information randomly generates symbols from a four letter alphabet {w, x, y, z }. The probability of each symbol is

koban [17]

The expected length of code for one encoded symbol is

$\displaystyle\sum_{\alpha\in\{w,x,y,z\}}p_\alpha\ell_\alpha$

where $p_\alpha$ is the probability of picking the letter $\alpha$ , and $\ell_\alpha$ is the length of code needed to encode $\alpha$ . $p_\alpha$ is given to us, and we have

$\begin{cases}\ell_w=1\\\ell_x=2\\\ell_y=\ell_z=3\end{cases}$

so that we expect a contribution of

$\dfrac12+\dfrac24+\dfrac{2\cdot3}8=\dfrac{11}8=1.375$

bits to the code per encoded letter. For a string of length $n$ , we would then expect $E[L]=1.375n$ .

By definition of variance, we have

$\mathrm{Var}[L]=E\left[(L-E[L])^2\right]=E[L^2]-E[L]^2$

For a string consisting of one letter, we have

$\displaystyle\sum_{\alpha\in\{w,x,y,z\}}p_\alpha{\ell_\alpha}^2=\dfrac12+\dfrac{2^2}4+\dfrac{2\cdot3^2}8=\dfrac{15}4$

so that the variance for the length such a string is

$\dfrac{15}4-\left(\dfrac{11}8\right)^2=\dfrac{119}{64}\approx1.859$

"squared" bits per encoded letter. For a string of length $n$ , we would get $\mathrm{Var}[L]=1.859n$ .

5 0

2 years ago

What changes when the parent function <img src="https://tex.z-dn.net/?f=f%28x%29%3Dx%5E2" id="TexFormula1" title="f(x)=x^2" alt=

Karolina [17]

9514 1404 393

Answer:

vertical stretch: the function value (f) is multiplied by the stretch factor
horizontal stretch: the variable (x) is divided by the stretch factor

Step-by-step explanation:

A stretch can be vertical, horizontal, or both.

Multiplying the function value by a factor greater than 1 will stretch the graph vertically.

Dividing the variable value by a factor greater than 1 will stretch the graph horizontally.

The graph is stretched by the factor according to how it is applied.

6 0

2 years ago