2 years ago

Please Hurry

Mathematics

1 answer:

fredd [130]2 years ago

8 0

It’s the second one

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N + 25= 60 what is the value of n

gtnhenbr [62]

Answer:

n=35

Step-by-step explanation:

Subtract 25 from both sides to isolate the variable

n+25=60

-25 -25

n=35

Hope this helps! :)

7 0

3 years ago

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An item is originally marked $35.99. The store marks the price down to $28.59. What is the PERCENT MARKDOWN of the item?

Alja [10]

Answer: 125.8832

Step-by-step explanation:

(35.99/28.59)*100=125.8832

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3 years ago

What is the inverse of the function below?

timama [110]

Answer:

Step-by-step explanation:

The correct answer is A

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3 years ago

Is 5*3^x equal to 15x

umka2103 [35]

Answer:

NO DEAR . PLS MARK IT AS BRAINLIEST

Step-by-step explanation:

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2 years ago

The scores on a psychology exam were normally distributed with a mean of 57

olya-2409 [2.1K]

Answer:

Cutoff for a failing score is 49 and 2.28% students failed.

Step-by-step explanation:

We have been given that scores on a psychology exam were normally distributed with a mean of 57 and a standard deviation of 4.

2 standard deviation below mean would be,

$57-2(4) =57-8= 49$

Therefore,Cutoff far a failing score is 49.

Now let us find out the z-score for our given values,

$z=\frac{x-\mu}{\sigma}$

$z=\frac{49-57}{4}=\frac{-8}{4} =-2$

Now let us look up the probability from normal distribution table.

$P(z$

Therefore, percentage of students failed is 2.28%.

3 0

3 years ago