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3 years ago

14

the scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation of 9. A failing grade on th

e exam was anything 2 or more standard deviations below the mean. What was the cutoff for a failing score?

1 answer:

bija089 [108]3 years ago

3 0

hey! i got a failing grade! this world is so small.

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Which is the best buy?

gogolik [260]

Answer:

A

Step-by-step explanation:

work out price of each for one bottle

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B) $10.98 ÷ 6 = $1.83

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D) $16.38 ÷ 9 = $2.82

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If f(x) = x-6 and g(x)= 1/2x (x+3), find g(x) * f(x)

sertanlavr [38]

Answer:

Final answer is $g\left(x\right)\cdot f\left(x\right)=\frac{\left(x-6\right)}{2x\left(x+3\right)}$ .

Step-by-step explanation:

given functions are $f(x)=x-6$ and $g\left(x\right)=\frac{1}{2x\left(x+3\right)}$ .

Now we need to find about what is the value of $g\left(x\right)*f\left(x\right)$ .

$g\left(x\right)*f\left(x\right)$ simply means we need to multiply the value of $f(x)=x-6$ and $g\left(x\right)=\frac{1}{2x\left(x+3\right)}$ .

$g\left(x\right)\cdot f\left(x\right)=\frac{1}{2x\left(x+3\right)}\cdot\left(x-6\right)$

$g\left(x\right)\cdot f\left(x\right)=\frac{\left(x-6\right)}{2x\left(x+3\right)}$

Hence final answer is $g\left(x\right)\cdot f\left(x\right)=\frac{\left(x-6\right)}{2x\left(x+3\right)}$ .

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3 years ago

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Lostsunrise [7]

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2 years ago

Help please, will give lots of points!

Troyanec [42]

Step-by-step explanation:

roots as exponents are fractions

if there is no root number next to the radical sign its assumed that its 1/2

3√2 is 2^(1/3)

√3 is 3^(1/2)

4√3 is 3^(1/4)

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2 years ago