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3 years ago

Please answer this math question !! Thank u !! Will give brainliest !!

Mathematics

1 answer:

const2013 [10]3 years ago

5 0

Answer:

Sharon has 18 cards and Brendan has 13

Step-by-step explanation:

you do 31-5=26

26/2=13 these are both of their cards

u then need to add the 5 to 13 to make it 18 to sharon and 13 to brendan

can i have brainliest

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You buy 30of your favorite songs from a Web site that charges $0.97for each song. What is the cost of 30 songs?

ASHA 777 [7]

Answer:

the answer is 29.1

Step-by-step explanation:

do 30 * .97

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4 years ago

Read 2 more answers

Last year a state university received 3,560 applications from boys,of those applications,35%were from boys who lived in other st

Aleksandr [31]

$\frac{3560}{x} = \frac{40}{100}$ 40x=356000 x= 8900 applications

you make x the number of total applications

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4 years ago

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 $\mathrm{Var}[L]=1.859n$ .

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3 years ago

How many solutions does the system have? 2x+3y=-6 3x-4y=-12. A) exactly one solution b) no solution c) infinity many solutions

katovenus [111]

Answer:

Step-by-step explanation:

by elimanation,cimparison or substitution you wull get the value of x=-60/17 and y=6/17

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3 years ago

The product of 3.41 and 8.5 will have how many decimal places?

Aleks04 [339]

Hello!

3.41 × 8.5 = 28.985

The product of 3.41 and 8.5 is 28.985, which has three decimal places.

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3 years ago