Translate each of the following into an expression or equation:

Mathematics

1 answer:

Harrizon [31]3 years ago

4 0

Answer:

You have to translate these sentences into expressions. I am not going to solve all of these because if I explain one/two problems to you, you'll get the hang of it. Seven more than three times a number: 7+3x; Five times a number decreased by six: 5x-6

Step-by-step explanation:

Why? We don't know what number that is, so we can put any variable like (x, y, z, a, b, etc.). Three times a number is simply that number times 3. In this case we would input: 3*x, or 3x. 7 more than that number is 3x+7. Five times a number decreased by six: 5x-6 . Remember: it is simply 5*x which simplifies to 5x. Decreased is take away, so take away 6, and get 5x-6

Key words: Quotient: the result after dividing two/or more numbers; Product: the result after multiplying two/ or more numbers; Decreased: take away (Example: x decreased by 7=x-7)

I hope you understand!! It is very simple after you start to get the hang of it!!

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Assume a significance level of alpha = 0.05 and use the given information to complete parts (a) and (b) below. Original claim

laiz [17]

Answer:

The correct option is B

The correct option is D

Step-by-step explanation:

From the question we are told that

The level of significance is $\alpha = 0.05$

The p-value is $p = 0.2761$

Considering question b

Given that the $p< \alpha$ then the null hypothesis is rejected

Considering question b

Given that the original claim is The standard deviation of pulse rates of a certain group of adult males is more than 11 bpm

Then the null hypothesis is $H_o : \sigma = 11$

The reason why the null hypothesis is write like this above is because a null hypothesis expression can not contain only a > or a < but only allows = $\le , \ and \ \ge$