All categories

3 years ago

Suppose the radius of a circle is 1. What is its circumference?

2 answers:

8 0

The radius x2 is the diameter. The Diameter x $\pi$ is the Circumference.
So Lets work it out.
the Radius is 1.
1x2=2 right?
So 2xpi
Use pi as 3.14
3.14x2
3.14x2=6.28.
So the Circumference is 6.28.
ANS:6.28

Rus_ich [418]3 years ago

6 0

C = 2 x 3.14 x 1 (use pi as 3.14)
C = 6.28

You might be interested in

What is the ratio of yellow sections to blue sections, in lowest terms?

ch4aika [34]

Answer:

the answer is B. 5 to 3

Step-by-step explanation:

bevause it is 5 yellows and 3 blues

4 0

3 years ago

Write the equation of the line passing through the points (-4,-1) and (2,8)

klio [65]

<h3>Explanation:</h3>

Calculate the slope with two given coordinate points by using rise over run.

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Let these points

$\begin{cases}(x_1, y_1) = ( - 4, - 1) \\ (x_2, y_2) = ( 2, 8) \end{cases}$

$m = \frac{8 - ( - 1)}{2 - ( - 4)} \\ m = \frac{8 + 1}{2 + 4} \Longrightarrow \frac{9}{6} \Longrightarrow \frac{3}{2} \\ m = \frac{3}{2}$

Slope-Intercept

$y = mx + b \\ m = slope \\ b = y - intercept$

Substitute the value of m in the equation.

$y = \frac{3}{2} x + b$

Substitute any coordinate points that are given or part of the graph in the equation.

$(x_, y) = ( - 4, - 1)$

$- 1 = \frac{3}{2} ( - 4) + b$

Solve the equation for b-term.

$- 1 = \frac{3}{ \cancel{2}} ( \cancel{ - 4}) + b\\ - 1 = 3( - 2) + b \\ - 1 = - 6 + b \\ - 1 + 6 = b \\ 5 = b$

Rewrite the equation by substituting the value of b in the equation.

$y = \frac{3}{2} x + 5$

<h3>Answer</h3>

$\large \boxed{y = \frac{3}{2} x + 5}$

If you have any questions related to the answer, feel free to ask via comment.

7 0

3 years ago

(4×⁴+3×³+2×²-×+1)+(5×²-2×+3)

Annette [7]

Answer:

4×⁴+3×³+7×²-3x+4

Step-by-step explanation:

First remove the parentheses and pair up like terms

4×⁴+3×³+2×²+5×²-x-2x+1+3

Then combine the like terms

4×⁴+3×³+7×²-3x+4

Which is the answer.

3 0

3 years ago

Anwers : a. dotted b. y=-x+4 c. y=x-4 d. y=x+1 e. solid f. yes g. no

Ksenya-84 [330]

Answer:

Those answers are correct

5 0

2 years ago

How many solutions exist for the given equation? 12×+1=3(4×+1)-2

Ipatiy [6.2K]

Answer:

infinite Solutions

Step-by-step explanation:

12x+1 = 12x+3-2

12+1 = 12x+1

The equation is same on both sides, so x can be anything.

5 0

3 years ago

Read 2 more answers