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solmaris [256]
3 years ago
9

Which table of ordered pairs represents a proportional relationship?​

Mathematics
1 answer:
Alexandra [31]3 years ago
8 0

Answer:

B

Step-by-step explanation:

2x5=10

4x5=20

8x5=30

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to find the distance between two points on a coordinate plane

Step-by-step explanation:

yes

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FrozenT [24]

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-3/5

Step-by-step explanation:

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Melanie packs boxes of envelopes into a larger box. The volume of each box of envelopes is 1,200 cubic centimeters. Which is the
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3 years ago
What are the sine and cosine ratios for a 30°–60°–90° triangle with a hypotenuse of 6, when θ = 60°?
Margaret [11]

Answer:

There are two ways to do this problem algebraically or trigonometrically.

Algebraically/geometrically

The ratios of the sides of a 30/60/90 tri. are x, x√3, 2x (short leg, long leg, hyp). Therefore, if the long leg is 6 'units'. then 6 = x√3. x = 6√3.

The hyp is 2x then the hypotenuse is 2(6√3) = 12√3, rationalizing is 12√3/3 = 4√3

Using Trig.

We can use sinx = y/r = opp/hyp. The long leg of 6 is opposite 60 degrees (pi/3).

Therefore, sin(pi/3) = 6/r =

r = 6/sin(pi/3) = 6/(√3/2) = 12/√3, when you rationalize you get 12√3/3 = 4√3

4 0
2 years ago
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