PLEASE HELP!!!1

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

7 0

We sketch two triangles, DFE and DGH, as shown below

Side DF correspond to side DG, the scale factor is 40÷32=1.25

Side DE correspond to side DH, the scale factor is 30÷24=1.25

That leaves us with the last corresponding sides, EF and HG which would also have a scale factor 1.25

Both triangles share the same angle D

We can conclude triangle DFE and triangle DGH are similar for property SSS and SAS

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A researcher interested in vocabulary development obtains a sample of twenty 3-year old children to participate in a research st

Andreyy89

Answer: b) statistic

Step-by-step explanation:

Population = A large groups of individuals sharing the same or similar characteristic by the point og study.
Sample = It is a subset of population .
Parameter = It is measure of characteristic in population.
Statistic = It is measure of characteristic in sample.

Since the average score was taken by the group of 20 which is nothing but the sample.

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Hence, the correct option is b) statistic .

4 0

3 years ago

3(2+7) - 9 x 7 = 3+8 x 2 x 2 - 4 = 16 ÷ 2 x 5 x 3 ÷ 6 = Please answer! ✨✨

Thepotemich [5.8K]

Answer:

At first, we have 3 expressions that are equal.

$3(2+7) - 9 \cdot 7= 3+8 \cdot 2 \cdot 2 - 4$