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3 years ago

The tables show the relationships between x and y for two data sets.

Mathematics

2 answers:

Alex787 [66]3 years ago

7 0

It’s letter A because data 1 is 5.5 more than data 2 if u do the math and add 5.5 for each y value

sammy [17]3 years ago

4 0

Answer:

Step-by-step explanation:

for data 1 , if u were to add 5.5 for each number on y it would make sense.

for data 2 , adding 5 would give u 10 , 15 , 20 and so on

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Which is true regarding the graphed function f(x)?

weqwewe [10]

Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers

John read the first 114 pages of a novel, which was 333 pages less than 1/3 of the novel. Write an equation to determine the tot

tankabanditka [31]

(p)=(333+114)•3

because 114 pages are already read and if he needs 333 pages to reach 1/3 of the book you add 114 and 333 so you can find out how much pages is 1/3 of the book. then you multiply that number by 3 because there are 3 sections of 333+114.

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3 years ago

A population is estimated to have a standard deviation of 9. We want to estimate the population mean within 2, with a 99% level

cupoosta [38]

Answer:

The sample required is $n = 135$

Step-by-step explanation:

From the question we are told that

The standard deviation is $\sigma = 9$

The margin of error is $E = 2$

Given that the confidence level is 99% then the level of significance is mathematically evaluated as

$\alpha = 100-99$

$\alpha = 1 \%$

$\alpha = 0.01$

Next we will obtain the critical value $\frac{\alpha }{2}$ from the normal distribution table(reference math dot armstrong dot edu) , the value is

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.05 }{2} } = 2.58$

The sample size is mathematically represented as

$n = [ \frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ]^2$

substituting values

$n = [ \frac{ 2.58 * 9 }{2} ]^2$

$n = 135$

3 0

3 years ago

When x=3, the value of x^2-2 is?

Hitman42 [59]

Answer:

Step-by-step explanation:

First you would square 3 which is nine. Then subrtact 2. The final answer is 7 .

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3 years ago

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aniked [119]

Answer:

Step-by-step explanation:

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3 years ago