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2 years ago

Translate the word phrase into a math expression. 1 fewer than a number A. n – 1 B. 1 – n C. n + 1 D. 15 ÷ n

Mathematics

1 answer:

Sedaia [141]2 years ago

7 0

1 fewer then a number : n - 1

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the answer is 7/12 hours

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What is the range of the cluster in the scatter plot?

mestny [16]

I think that it is C

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Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

frozen [14]

Answer: 101.69

Step-by-step explanation:

Formula we use to find the z-score :-

$z=\dfrac{x-\mu}{\sigma}$ (1)

Given : $\mu=90$

$\sigma=7$

Daniel's z score : z= 1.67

Let x be the raw score for Daniel's exam grade, then substitute the values of $\mu,\ \sigma\ and \ x$ in (1), we get

$1.67=\dfrac{x-90}{7}\\\\\Rightarrow\ x-90=7\times1.67\\\\\Rightarrow\ x=11.69+90=101.69$

Hence, the raw score for Daniel's exam grade = 101.69

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2 years ago

What is 380.5 rounded to the nearest whole number

Lisa [10]

Answer:

It will be 381. You round up if it is five and over, and round down if 5 and below.

Step-by-step explanation:

A decimal cannot be a whole number so rounding to the nearest whole number means getting rid of the decimal. You do this by rounding up if it 5 and up, and rounding down if it is 5 and below. 380.5 means you would round up to 381. If it it were 380.4, you would round down to 380.

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