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Nikitich [7]
3 years ago
6

What makes a graph a proportional relationship?

Mathematics
1 answer:
saw5 [17]3 years ago
8 0

Answer:The graph of a proportional relationship is a straight line that passes through the origin. Proportional quantities can be described by the equation y = kx, where k is a constant ratio. You can tell that the relationship is directly proportional by looking at the graph.



Step-by-step explanation:


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A blind taste test will be conducted with 9 volunteers to determine whether people can taste a difference between bottled water
Aloiza [94]

Answer:

The answer is \frac{1}{256}

Step-by-step explanation:

If we assume that people cannot taste a difference between bottled water, then the probability of identifying tap water is 0.5

Thus, P(identify tap water)=0.5

The probability that at least 8 of the 9 people identify the tap water correctly is the sum of the probabilities

  • 8 of 9 people identified correctly or
  • 9 of 9 people identified correctly

Since P(identify tap water)=0.5 each probabilities are the same and equal to

0.5^9 =\frac{1}{512}

So we have 2*\frac{1}{512} = \frac{1}{256}

6 0
3 years ago
Tanya wants to find the height of the tree. She walks away from the base of the tree so the tip of her shadow coincides with the
Vikki [24]
<span><u>Answer </u>
18 feet and 4.5 inches

<u>Explanation </u>
You are going to use the concept of similar triangle.
∆CED≡∆CBA
This is because they share the angle at C and also they both have an angle of 90o.
Let EC = X, then BE = 2.5X. So, BE = (X + 2.5X) = 3.5X
The scale factor EC/BC=x/3.5x=2/7
EC/BC=ED/BA=2/7
BA=7/2×63 in
The height of the tree = 220.5 inches. This is equal 18 feet and 4.5 inches.  
</span>
3 0
2 years ago
Paige’s back yard has an area of 95.9 square meters of the length of the yard is 14 meters what is the width
Mandarinka [93]
Your answer is 6.85 meters
5 0
3 years ago
No links and no false answers please help i'll mark you the brainlest
nadezda [96]
If you look at the line it never stops. Y can be any number and X can be any number so X and y are elements of reels meaning your answer is a
8 0
2 years ago
Lines g,h and l are parallel and m&lt; 2 = 129<br> What is the m &lt; L
Bingel [31]
180-129= 51
angle 4 is equal to angle 12 so missing angle 12= 51°
6 0
3 years ago
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