All categories

3 years ago

Y equals 4x to the 3rd power minus 3 plus 2x to the second power

Mathematics

2 answers:

Nikolay [14]3 years ago

8 0

It equals 3,969x........,,,.

Marina CMI [18]3 years ago

7 0

Y=4x^3 - (3+2x)^2 hope this helped! I wrote it out in the picture

You might be interested in

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

3 years ago

How can i explain that i am useing multiplication to solve the proportion

kow [346]

In order for us to answer this question, more information is needed.

8 0

3 years ago

Which of the following is a non-prime factor of 70? Select one: A. 5 B. 7 C. 10 D. 15

Umnica [9.8K]

Answer:

C. 10

Step-by-step explanation:

by deduction, 5 and 7 are prime numbers and 15 is not a multiple of 70, therefore the answer must be 10 as it is a non-prime number and is a factor of 70 (I.e. 10 and 7)

5 0

3 years ago

Read 2 more answers

Find the surface of the prism

natta225 [31]

Answer:

no se podrías resolverlo tu

6 0

3 years ago

find the slope intercept form of the equation of the the line that passes through (-9,-8) and the origin

Debora [2.8K]

Answer: