Is line de parallel to line bc, explain/ show how you know:

Mathematics

2 answers:

coldgirl [10]2 years ago

5 0

Yes, it is shown horizontal for both lines and they will never touch, therefore parallel.

Otrada [13]2 years ago

5 0

Answer:

YES

Step-by-step explanation:

Becasue the ratio of the length of the sides 6/9 is equivalent to the ratio of of the length of the sides 4/6:

6/9 = 4/6

If you simplify these you can see that they are of the same ratio, so the lines DE and BC must be parallel.

Hope this helps!

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saveliy_v [14]

ANSWER:
d. x = 15, y= 15√3

EXPLANATION:
This is a special triangle, more specifically a 30-60-90 degree triangle. For sake of not confusing x and y, we will use z to use as our reference for solving this triangle. The side lengths for each angle are as follows:
• 60 degrees = z√3
- this is the value for your y answer
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- this is the value for your x answer
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We solve for what we already have which is the Hypotenuse = 30:
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We now have our x value which is 15.
Now we just plug in that x value for every expression for every angle.

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Sorry if I explained it too thoroughly but I’ll be glad to answer any questions or clarifications

8 0

1 year ago

Thanks for the help!

NikAS [45]

Answer:

Step-by-step explanation:

So we have the piecewise function:

$f(x)= \begin{cases}\sqrt{2x} & \text{if }x$