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tangare [24]
2 years ago
15

A team of storm enthusiasts collected data to show the relationship between the time between seeing lightning and then hearing t

hunder, and how far away you are from the lightning. The results are in the graph below.
What is the constant of proportionality expressed as miles per second?
Answer: The constant of proportionality is _____________miles per second.

Mathematics
1 answer:
never [62]2 years ago
3 0

Answer:

Proportionality constant = \frac{1}{5}

Step-by-step explanation:

From the graph attached,

Data set representing the relation between seeing lightning and the hearing thunder is,

{(15, 3), (25, 5), (35, 7), (45, 9)}

Since, Distance from lightening (d) ∝ Time between lightening and thunder (t)

d = kt

Here k = proportionality constant

k = \frac{d}{t}

From the data set one point is (15, 3).

k = \frac{3}{15}

k = \frac{1}{5} miles per second

Therefore, proportionality constant is \frac{1}{5} miles per second.

You might be interested in
in a bag of keys there are 15 silver keys six black keys 11 copper keys and two painted keys of various colors. one key is drawn
Setler79 [48]

Answer:

The best thing to do here is to put each of these into fractions, with the total (31) as the denominator.

14/31= silver

6/31= black

8/31= copper

3/31= various colours.

As you're looking for the keys that are silver or copper, you've got to add the two denominators together, which gives you 14+8= 22.

This cannot be simplified further, therefore, the probability of choosing either a silver or copper key is 22/31.

Hope this answer helps you :)

Have a great day

Mark brainliest

7 0
2 years ago
The a value of a function in the form f(x) = ax2 + bx + c is negative. Which statement must be true?
Serhud [2]
"a "and "b^2-4ac" must be negetive
7 0
3 years ago
If a triangle has sides that are 21 and 6 what is the range for third side x?
VikaD [51]

Answer:

15<x<27

Step-by-step explanation:

Rule for the sides of a triangle:

The sum of the two smallest sides of a triangle must be greater than the biggest side.

In this question:

Sides of 6, 21 and x. We have to find the range for x.

If 21 is the largest side:

Two smallest are 6 and x.

x + 6 > 21

x > 21 - 6

x > 15

If x is the largest side:

Two smallest and 6 and 21. So

21 + 6 > x

27 > x

x < 27

Then

x has to be greater than 15 and smaller than 27. So the answer is:

15<x<27

8 0
2 years ago
12. 4x2 - 4y2 + 1622 - 16xz​
Snezhnost [94]

Answer:

8(203-2xz)

1624-16xz

have a great day :)

5 0
3 years ago
Read 2 more answers
(8^2)^4 I'm struggling in my math and need help please
Serjik [45]
I think that equals 16777216
3 0
2 years ago
Read 2 more answers
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