3 years ago

PLS HELP!!!!! What is the range of Variable B for the cluster?

Mathematics

1 answer:

DanielleElmas [232]3 years ago

7 0

The answer is 2. Range is subtracting the highest number by the lowest number.

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Answer:

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Step-by-step explanation:

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2 years ago

Weekly demand for milk at a small grocery store is normally distributed with a mean of 251 gallons per week and standard deviati

slavikrds [6]

Solution

Given

mean = 251

standard deviation = 33

(a)

$\begin{gathered} P(Z$

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1 year ago

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Write this word sentence as an equation. 42 less than x is-50

salantis [7]

42 less than x is -50 would be written as x - 42 = -50

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2 years ago

Will pick brainlyest help me plz 15 pts

leonid [27]

1.50c + 2.50a = 1100
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multiply the second equation by -1.50

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3 years ago

A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in

Oksi-84 [34.3K]

Answer: The concentration of X is $7.13582\times 10^{-6}$ and the concentration of Y is $2.53159\times 10^{-5}$ .

Step-by-step explanation:

Since we have given that

At 272 nm, absorbance = 0.215

At 327 nm, absorbance = 0.191

As we have given that

Compound X Compound Y

272 16400 3870

327 3990 6420

So, our equations becomes

$16400C_1+3870c_2=0.215\\\\3990C_1+6420C_2=0.191$

By solving these two equations, we get that

$C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}$

Hence, the concentration of X is $7.13582\times 10^{-6}$ and the concentration of Y is $2.53159\times 10^{-5}$ .

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3 years ago