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Dmitry_Shevchenko [17]

3 years ago

12

Select the equivalent expression. (6-4.8-7)-° -2

1 answer:

dalvyx [7]3 years ago

4 0

I think the answer is -7.8

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AC=36cm, and BC=27cm. Verify that DE\\AB.

emmasim [6.3K]

Answer:

$\overline {DE} \parallel \overline{AB}$ because $\frac{EC}{DC} = \frac{AC}{BC}$ .

Step-by-step explanation:

According to the Theorem of Thales and definition of proportionality, $\overline {DE} \parallel \overline{AB}$ if and only if $\frac{EC}{DC} = \frac{AC}{BC}$ . If we know that $EC = 15\,cm$ , $DC = 20\,cm$ , $BC = 36\,cm$ and $AC = 27\,cm$ , then we have the following result:

$\frac{15\,cm}{20\,cm} = \frac{27\,cm}{36\,cm}$

$\frac{3}{4} = \frac{3}{4}$

Hence, $\overline {DE} \parallel \overline{AB}$ .

4 0

3 years ago

26 points A stoplight has the following cycle: green for 25 seconds, yellow for 4 seconds, and red for 2 minutes. What is the pr

Anika [276]

Answer:

25+4+120(2min) = 149

25/149 = 0.16778523489932885906040268456376

= (rounded) 0.17

3 0

4 years ago

Read 2 more answers

After buying five coloring books that cost $3 each, Mary had %8.50 left. How much money did she have at first

TiliK225 [7]

Answer:

$23.50

Step-by-step explanation:

$8.50 + $3(5) = $23.50

3 0

3 years ago

One more than the product of 17 and Matt's savings

velikii [3]

Answer:

17m=2

Step-by-step explanation:

hey plz pick mine as the brainliest?

8 0

3 years ago

Need help on #4 thank you!

Bumek [7]

Answer:

Try 336

Step-by-step explanation:

14+14=28

triangle area= 12x6x28=84

rectangle area= 28x9=252

252+84= 336

answer=336

4 0

3 years ago

Read 2 more answers