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ExtremeBDS [4]
4 years ago
8

 

Mathematics
1 answer:
Lapatulllka [165]4 years ago
8 0
Mr. Rowley  : 16/14 reduces to 8/7
Ms. Rivera : 64/60 reduces to 16/15

No, these ratios are not equivalent. Because ratios can be written as fractions....and 8/7 is not equivalent to 16/15
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3 years ago
There are 336 girls at a concert. The ratio of girls to guys at the concert is 4 to 5. How many total girls and boys are at the
torisob [31]

Answer:

Boys=420

336+420= 756

Step-by-step explanation:

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3 years ago
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4 years ago
The Eks Survey Company employs 2000 people to conduct telephone surveys. Because many people don't like to answer such surveys,
Kobotan [32]

Use the next formula to find the margin or error:

MOE=z*\frac{\sigma}{\sqrt{n}}

z is the critical value (For a 95% confidence level the z-score is 1.95998)

σ is the standard deviation

n is the sample size

\begin{gathered} MOE=1.95998*\frac{20.4}{\sqrt{36}} \\  \\ MOE\approx6.6639 \end{gathered}<h2>Then the margin of error is: 6.6639</h2>\begin{gathered} \bar{x}\pm MOE \\  \\ 38.6\pm6.6639 \end{gathered}

5 0
1 year ago
How do you do congruence and transformations
defon
I love this unit a-lot (super fun)

So Congruent/Congruence is, For example If you have two triangles on a coordinates grid with the same coordinates than that would mean they're congruent. Shortened down would be 

Same shape same coordinates same dimension same size (same everything)

Transformations would be Rotating a shape clockwise(CW)...right) or counterclockwise(CC Left) 

Or Dilation which is making the shape smaller or bigger based on a scale factor.
  
Or reflection

How you would perform Reflection is reflect the shape over either the X-axis 
Or the Y-axis 

How you would perform a Translation would be to literally move the shape right left up or down.

How you would perform a Dilation(scaling) would be to pick a scale factor and either decrease or increase the size of the shape according to the scale factor number 

How you would perform a Rotation would be to pick a point of rotation (P.O.R) and then pick your measure º such as 90º clockwise and rotate accordingly. 


Hope it helps :)






3 0
4 years ago
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