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2 years ago

3. Which of the following is an arithmetic sequence?

Mathematics

1 answer:

bagirrra123 [75]2 years ago

7 0

Answer: <u>D </u>is correct

Step-by-step explanation:

The rate in answer D is -4

-3 -4 is -7.

-7 - 4 is -11

and so on..

A. is wrong because 23+4=27 not 28

B. is wrong because that is an exponential function

C. is wrong because you cant add 3 to zero then subtract 3, thats not arithmetic

D. Is correct because it follows the pattern

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Answer:

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Step-by-step explanation:

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3 years ago

What is the greatest common factor of 12 and 18?<br> A. 2 B. 6 C. 4 D. 12

S_A_V [24]

Answer:

B. 6

Step-by-step explanation:

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2 years ago

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On a standardized exam, the scores are normally distributed with a mean of 165 and astandard deviation of 40. Find the z-score o

vladimir1956 [14]

The Z-score is calculated by the formula below

$\begin{gathered} z-score=\frac{(x-\mu)}{\sigma}_{} \\ \mu=\operatorname{mean} \\ \sigma=s\tan dard\text{ deviation} \\ x=\text{score} \end{gathered}$

Step 2: Substitute the given parameters in the formula

$\begin{gathered} z-\text{score}=\frac{145-165}{40} \\ Z=-\frac{20}{40} \\ Z=-\frac{1}{2} \\ Z=-0.5 \end{gathered}$

Hence, the z-score of a person who scored 145 on the exam is -0.5

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1 year ago

Is the function y=1/9x-6 linear or nonlinear?

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3 years ago

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