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2 years ago

9

I need help understanding ratios and how they can be equivalent to each other

1 answer:

mart [117]2 years ago

7 0

Ratios are the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

Equivalent ratios are like equivalent fractions, if they are the same value they are equivalent.

For example, to find two ratios that are equal to 1:7, first write 1:7 as the fraction 1/7.

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Liam tried to define a translation. - Point A maps to point A' - Every point P maps to point P' such that PP' is parallel to AA'

zvonat [6]

Answer:

a

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and

rjkz [21]

Answer:

<em>99% of confidence intervals for mean age of ICU patients</em>

<em>(53.8920 , 61.2079)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<em>Given sample mean </em> $x^{-} = 57.55$ <em></em>

Given standard error is determined by

S.E = $\frac{S.D}{\sqrt{n} }$

<em>Given data standard error = 1.42</em>

<em>99% of confidence intervals for mean is determined by</em>

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576$

$(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)$

$(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)$

(53.8920 , 61.2079)

<u><em>Conclusion</em></u>:-

<em>99% of confidence intervals for mean is determined by</em>

<em>(53.8920 , 61.2079)</em>

5 0

2 years ago

X + x(x + y) + y; use x = 4, and y = 1

leva [86]

$\huge\text{Hey there!}$

$\huge\text{x + x(x + y) + y}$

$\huge\text{= 4 + 4(4 + 1) + 1}$

$\huge\text{= 4 + 4(5) + 1}$

$\huge\text{= 4 + 20 + 1}$

$\huge\text{= 24 + 1}$

$\huge\text{= 25}$

$\huge\boxed{\textsf{Therefore, your answer is: 25}}\huge\checkmark$

$\huge\text{Good luck on your assignment \& enjoy your day!}$

~ $\huge\boxed{\frak{Amphitrite1040:)}}$

5 0

2 years ago

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Which statements are true the ordered pair (1, 2) and the system of equations?

galina1969 [7]

Answer:

when (1.2) is substituted into the second equation the equation is true

Step-by-step explanation:

further you substitute x and the then solve

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2 years ago

Does the table represent a linear or an exponential function? Explain.

777dan777 [17]

Uhm where is the table?

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3 years ago