The table shows a proportional relationship between the weight on a spring scale and the distance the spring has stretched.

Mathematics

2 answers:

Svetlanka [38]3 years ago

7 0

Answer:

See below

Step-by-step explanation:

As per the first row of proportional relationship, the proportion is:

y = kx
28 = k*20
k = 28/20 = 1.4

The function is therefore:

y = 1.4x

a) Table is filled in below:

distance (cm) | weight (newtons)

20 | 28

55 | 55*1.4 = 77

140/1.4 = 100 | 140

1 | 1*1.4 = 1.4

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

b) The scale should consider the coefficient 1.4, therefore x- axis will have a scale of 100 with intervals of 1 cm and y- axis will have a scale of 140 with intervals of 1.4 newtons

Ira Lisetskai [31]3 years ago

3 0

Answer:

55= 39 2/7

Step-by-step explanation:

You might be interested in

Find the area of the circle with the given radius or diameter. Use = 3.14. d = 10

valkas [14]

Formula for finding the area of a circle: $A = \pi r^2$
We need to radius but we only have the diameter.

Luckily for us, if you have the diameter, you have the radius.
Because the radius is the diameter over 2.

10 / 2 = 5

Plug in the values.

A = (3.14)5^2
A = (3.14)25
A = 78.5

So, the answer is 78.5.

5 0

3 years ago

Read 2 more answers

Hi, Help plssss

olga_2 [115]

Answer:

a and b are parallel

Step-by-step explanation:

corresponding angles converse

3 0

3 years ago

Read 2 more answers