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myrzilka [38]
2 years ago
13

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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Two dimes is what fraction of a dollar?
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Well a dime is 10 cents each so 2 dimes would be 20 cents. a dollar is 100 cents. 20/100 which is also 1/5 of a dollar.
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Furkat [3]
<h3>Answer: Choice D)  31.2 miles</h3>

This value is approximate.

============================================================

Explanation:

Let's focus on the 48 degree angle. This angle combines with angle ABC to form a 90 degree angle. This means angle ABC is 90-48 = 42 degrees. Or in short we can say angle B = 42 when focusing on triangle ABC.

Now let's move to the 17 degree angle. Add on the 90 degree angle and we can see that angle CAB, aka angle A, is 17+90 = 107 degrees.

Based on those two interior angles, angle C must be...

A+B+C = 180

107+42+C = 180

149+C = 180

C = 180-149

C = 31

----------------

To sum things up so far, we have these known properties of triangle ABC

  • angle A = 107 degrees
  • side c = side AB = 24 miles
  • angle B = 42 degrees
  • angle C = 31 degrees

Let's use the law of sines to find side b, which is opposite angle B. This will find the length of side AC (which is the distance from the storm to station A).

b/sin(B) = c/sin(C)

b/sin(42) = 24/sin(31)

b = sin(42)*24/sin(31)

b = 31.1804803080182 which is approximate

b = 31.2 miles is the distance from the storm to station A

Make sure your calculator is in degree mode.

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2 years ago
Pls asap now<br> late thank you
allsm [11]

Answer:

using Pythagoras theorem

Step-by-step explanation:

it's option c

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