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egoroff_w [7]
3 years ago
8

classify each scale factor as a contraction or an expansion Dragon drop the choices into the box to complete the table

Mathematics
2 answers:
TEA [102]3 years ago
8 0
Anything that is multiplied by a number over 1 will get bigger. any other number such as negatives or fractions/decimals will get smaller. 1.25 and 3 are expansions and -2,3/4, and 1/5 are contractions
dybincka [34]3 years ago
6 0

Answer: Contraction = \dfrac{3}{4},\ \dfrac{1}{5}

Expansion = 1.25, -3, -2

Step-by-step explanation:

Let k be the scale factor .

Expansion : |k|>1

Contraction : 0<|k|<1

Let's check the given scale factors :

1.25> 1, then this scale factor is an expansion.

3> 1, then this scale factor is an expansion.

|-2|=2>1, then this scale factor is an expansion.

\dfrac{3}{4}=0.75

& 0<0.75<1 , thus \dfrac{3}{4} is an contraction.

\dfrac{1}{5}=0.2

& 0<0.2<1 , thus \dfrac{1}{5} is an contraction.

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Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are
Kruka [31]

Answer:

Step-by-step explanation:

The formula for determining the confidence interval for the difference of two population means is expressed as

Confidence interval = (x1 - x2) ± z√(s²/n1 + s2²/n2)

Where

x1 = sample mean of type A paint

x2 = sample mean of type B paint

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s2 = sample standard for type B paint

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From the information given,

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n1 = 11

x2 = 64.3

s2 = 5.1

n2 = 9

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Degree of freedom = (n1 - 1) + (n2 - 1)

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The lower boundary for the confidence interval is

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3 years ago
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How did you get that as an answer ?
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NO LINKS OR ATTACHMENTS PLEASE. Maria had picked 6 bags of oranges. How many glasses of orange juice could she make if each glas
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Answer:

24

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