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3 years ago

Anyone knows more about algebric expressions??? Who voulenteer to teach me

Mathematics

1 answer:

Tresset [83]3 years ago

5 0

algebraic expressions could be easy or hard

how difficult are u talkin

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Find the balance in an account at the end of 8 years if $6000 is invested at an interest rate of 4.2% that is compounded continu

tester [92]

Answer:

$8016.00

Step-by-step explanation:

I = 6000 × 0.042 × 8 = 2016

I = $ 2,016.00

$2,016.00 + $6,000.00 = 8,016.00

7 0

2 years ago

A random variable X follows the uniform distribution with a lower limit of 670 and an upper limit of 750.a. Calculate the mean a

DENIUS [597]

You can compute both the mean and second moment directly using the density function; in this case, it's

$f_X(x)=\begin{cases}\frac1{750-670}=\frac1{80}&\text{for }670\le x\le750\\0&\text{otherwise}\end{cases}$

Then the mean (first moment) is

$E[X]=\displaystyle\int_{-\infty}^\infty x\,f_X(x)\,\mathrm dx=\frac1{80}\int_{670}^{750}x\,\mathrm dx=710$

and the second moment is

$E[X^2]=\displaystyle\int_{-\infty}^\infty x^2\,f_X(x)\,\mathrm dx=\frac1{80}\int_{670}^{750}x^2\,\mathrm dx=\frac{1,513,900}3$

The second moment is useful in finding the variance, which is given by

$V[X]=E[(X-E[X])^2]=E[X^2]-E[X]^2=\dfrac{1,513,900}3-710^2=\dfrac{1600}3$

You get the standard deviation by taking the square root of the variance, and so

$\sqrt{V[X]}=\sqrt{\dfrac{1600}3}\approx23.09$

8 0

2 years ago

4.) Mindy works for an ice cream cart vendor. She receives $38 for taking the cart out for a

Ivanshal [37]

Mindy from the office so what she doing without the paper

7 0

2 years ago

Read 2 more answers

Write an expression, using an exponent that is equivalent to 6 x 6 x 6 x 6 x 6.<br>

Zolol [24]

Answer:

6^4 = 1296

Step-by-step explanation:

6 to the power of 4

7 0

3 years ago

Read 2 more answers

NEED HELP ASAP!!!! plssss

Shkiper50 [21]

Answer:

Draw rise on y-axis from (0,0)-(0,3). Draw run from (0,3) to (4,3). Rise/run=3/4

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2 years ago

Anyone knows more about algebric expressions??? Who voulenteer to teach me​

Anyone knows more about algebric expressions??? Who voulenteer to teach me