All categories

3 years ago

What is the approximate area of a circle with a radius of 11 m?

Mathematics

2 answers:

Katarina [22]3 years ago

8 0

Answer:

380.13

Step-by-step explanation:

area= (pi)x(r^2)

pi times r squared

Tamiku [17]3 years ago

4 0

Answer:

380 m^2 to the nearest whole number.

Step-by-step explanation:

That would be 3.14 * 11^2

= 380 .

You might be interested in

Which equation represents a line that passes through 4 6) and is parallel to the line whose equation is 3x - 4y= 6

Pachacha [2.7K]

Parallel means their slopes should equal to each other.

Thus we need to find the slope of the given line ,

Let's do it.....

$3x - 4y = 6$

Subtract sides -3x

$- 3x + 3x - 4y = - 3x + 6$

$- 4y = - 3x + 6$

Divided sides by -4

$\frac{ - 4}{ - 4}y = \frac{ - 3}{ - 4}x + \frac{6}{ - 4} \\$

$y = \frac{3}{4}x - \frac{3}{2} \\$

This is the slope-intercept of the line.

We know that the coefficient of the x in slope-intercept form , is the slope of the line.

Thus the slope of the equation which we want is :

$slope = \frac{3}{4} \\$

_________________________________

We have following equation to find the point-slope form of the linear functions.

$y - y(given \: point) = slope \times (x - x(g \: p) \: ) \\$

Now just need to put the slope and the given point in the above equation.

$y - 6 = \frac{3}{4} \times (x - 4) \\$

Multiply sides by 4

$4(y - 6) = 3(x - 4)$

$4y - 24 = 3x - 12$

Plus sides 24

$4y - 24 + 24 = 3x - 12 + 24$

$4y = 3x + 12$

Subtract sides -3x

$4y - 3x = 3x - 3x + 12$

$4y - 3x = 12$

And we're done....♥️♥️♥️♥️♥️

4 0

3 years ago

The x-intercepts of a parabola are 5 and -7. What is the equation of the axis of symmetry?

zloy xaker [14]

X=-1
The axis of symmetry will be directly in the middle of the intercepts.

4 0

3 years ago

PLSSS HELP MY TEST IS ALMOST OVER

Ipatiy [6.2K]

I think the answer is b

8 0

3 years ago

If you doubled the radius of a sphere, how would the volume change? A. The volume would double. B. The volume would triple. C. T

Ronch [10]

The volume of a sphere, V = (4/3)(PI)(R^3) Let k = (4/3)(PI) Therefore, V = k (R^3) Let R’ = new radius = 2R V’ =k (R’^3) = k (2R)^3 = 8 k R^3 = 8 V The volume would be eight time the original volume.

7 0

3 years ago

A small cube with side length 6y is placed inside a larger cube with side length 4x^2. What is the difference in the volume of t

olasank [31]

Answer:

64x⁶ - 216y³

Step-by-step explanation:

The formula for the volume of a cube is

Vol. = l³

For the large cube,

V =(4x²)³

V = 64x⁶

For the small cube,

v =(6y)³

v = 216y³

The difference in volume is

Diff. = 64x⁶ - 216y³

5 0

3 years ago

Read 2 more answers