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3 years ago

Trapezoid ABFE is similar to trapezoid EFCD. What is the length of DC?

Mathematics

1 answer:

Murrr4er [49]3 years ago

4 0

Answer:

6.75

Step-by-step explanation:

Find the relationship between the trapezoids. You can see that the top of trapezoid ABFE is 3 units and the top of EFCD is 4.5 units. 3 * 1.5 = 4.5, so t the sides of trapezoid EFCD are 1.5 times more than the sides of ABFE.

Now, you know the bottom of ABFE is 4.5, so the bottom of EFCD is 1.5 times longer because they are proportional, so you can do 4.5 * 1.5 = 6.75 units.

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\\\\
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\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
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n=
\begin{array}{llll}
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3 years ago

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Jet001 [13]

Answer:

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Step-by-step explanation:

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8.)

y=cost x=lego set

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3 years ago

What does > −2 indicate about the positions of and −2 on the number line?

Aloiza [94]

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4 years ago

If we wanted to measure the capacity of the waterfall and how deep it was, what unit of measure would we use?

AleksAgata [21]

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3 years ago

What is the error in this problem

castortr0y [4]

Answer:

12). LM = 37.1 units

13). c = 4.6 mi

Step-by-step explanation:

12). LM² = 23² + 20² - 2(23)(20)cos(119)°

LM² = 529 + 400 - 920cos(119)°

LM² = 929 - 920cos(119)°

LM = $\sqrt{929+446.03}$

= $\sqrt{1375.03}$

= 37.08

≈ 37.1 units

13). c² = 5.4² + 3.6² - 2(5.4)(3.6)cos(58)°

c² = 29.16 + 12.96 - 38.88cos(58)°

c² = 42.12 - 38.88cos(58)°

c = $\sqrt{42.12-20.603}$

c = $\sqrt{21.517}$

c = 4.6386

c ≈ 4.6 mi

3 0

3 years ago