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Masja [62]
3 years ago
5

Why do you have to flip where x is when you are doing porportions

Mathematics
1 answer:
Nitella [24]3 years ago
5 0
You don't flip; you cross multiply proportions
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Laws of Sines with find the angle.
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A divide by sin A = b divide by sin B
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4 0
3 years ago
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1. If B is between A and C, AB = 12 in., and AC = 19 in., then what is BC?
Oksanka [162]

Answer:

BC = 7.

Step-by-step explanation:

subtract 12 inches from 19 and then you get the result for BC.

8 0
3 years ago
Work out the value of angle x and how ??
frutty [35]

Answer:

160 degrees

Step-by-step explanation:

Step 1: A straight line is 180 degrees. So 180 - 100, is 80 degrees. as the opposite angle measurement of the 100 degree.

Step 2: An isosceles triangle has two equal angle measurements, so two of its angles are 80 degrees.

Step 3: All angles in a triangle equal 180 degrees. So add them up (we will call the missing angle, Z)     180 = 80+80+Z.      which equals 180= 160+z

Step 4: Solve it. You subtract 160 from both side which comes out to 20 = Z.

Step 5: Now you have the opposite angle of X. Going back to step 1, A straight angle is 180 degrees. 180 - 20 = 160. X = 160 degrees

6 0
3 years ago
What is 3.78 × 10 ²=
Anika [276]

Answer:

3.78 × 10^{2} = 378

Step-by-step explanation:

7 0
3 years ago
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