3 years ago

If the circumference of a wheel is 94 cm what is its approximate diameter

1 answer:

6 0

Hey there :)

We know the formula for the circumference of a circle:
Circumference = 2 $\pi$ × radius
2 × radius = diameter
Circumference = $\pi$ × diameter

We are given:
Circumference = 94

Apply the formula:
94 = $\pi$ d

Divide by $\pi$ on either side to isolate d and find its value

$\frac{94}{ \pi } = \frac{ \pi d}{ \pi }$
$\frac{94}{ \pi } = d$

d ≈ 29.9 cm → Your answer

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The graph below shows a proportional relationship between yyy and xxx.

Elena-2011 [213]

Answer:

$k = 40$

Step-by-step explanation:

Given

The attached graph

Required

Calculate the constant of proportionality.

Represent the required constant with k.

Such that:

$k = \dfrac{y}{x}$

Pick any two corresponding values of x and y

$(x,y) = (1,40)$

This means that:

$x = 1\ and\ y = 40$

$k = \dfrac{y}{x}$ becomes

$k = \frac{40}{1}$

$k = 40$

8 0

3 years ago

Read 2 more answers

Refer to the equation 2 x − 6 y = 12. (a) Create a table of values for at least 4 points. Show your work. (b) Use the table of v

steposvetlana [31]

For easy calculation first transpose the equation into the y-intercept form then create your table and plot the graph.

If 2x - 6y = 12
then -6y = 12 - 2x
6y = 2x - 12
y = [2 (x - 6)] /6
⇒ y = (x - 6) / 3

The table and graph are attached below.