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3 years ago

Write 13 tens as a sum of hundreds and tens

Mathematics

2 answers:

ss7ja [257]3 years ago

6 0

1 hundred and 3 tens

Katyanochek1 [597]3 years ago

3 0

I think it is 130. I hope this helps! :D

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How many juice glasses, each having a capacity of

sashaice [31]

Answer: 16 Juice Glasses

Step-by-step explanation:

2 Liters of Juice = 2000 Milliliters of Juice

2000 mL/125 mL = 16 Juice Glasses

3 0

3 years ago

Brian is solving the equation x^2 -3/4 x =15. what value must be added to both sides of the equation to make the left side a per

vekshin1

To complete the square we get the coefficient of x, divide it by 2 then square it.
-3/4 divided by 2 =
-3/8 and then squared it equals
9 / 64
answer is a

3 0

4 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

3 years ago

Due in 15 helpppp!!!!!!!!!

notka56 [123]

36m+25. ehhwienebtbtbrbve

4 0

3 years ago

Brenda purchased a total of 5 computers for $3,300. She received a 20% trade discount. What did Brenda pay for the computers

Dovator [93]

3300-20%=2640

$2640 is the answer to your question,hope this helps!please award brainliest??

5 0

3 years ago

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