All categories

3 years ago

Please help me with this. Thank you!

Mathematics

2 answers:

Rufina [12.5K]3 years ago

6 0

Answer:

1- 51.496yd 2- 39.25ft 3- 163.28cm 4- 53.38mm 5- 50.24in 6-94.2ft 7-18.84yd 8- 207.24m

Step-by-step explanation:

So how you do circumference is you find the diameter and times it by pi.

for 1. you will do 8.2 times 2 for the diameter then times it by pi and get 51.496 yards.

for 2 you would do 12.5 times pi and get 39.25ft

for 3 you would do 26 times 2 which is 52 then multiply it by pi which is 163.28cm

for 4 you do 17 times pi which is 53.38mm

for 5 you do 16 times pi which is 50.24in

for 6 you do 30 times pi which is 94.2ft

for 7 you do 3 times 2 which is 6 then multiply by pi which is 18.84yd

for 8 you do 33 times 2 which is 66 then multiply by pi which is 207.24m.

Luda [366]3 years ago

4 0

Answer:

2. 122.7 ft^2

3. 2123 cm^2

5. 201.06 in^2

6. 706.86 ft^2

7. 28.27 yd^2

8. 3421.19 m^2

Step-by-step explanation:

Use the equation area=pi r(squared) to continue finding the area

You might be interested in

The gradient of the curve is given by the equation and a point on the curve is also given. Find the equation of the curve with w

IgorC [24]

Answer:

4 x^(3/2) + 5x -32

Step-by-step explanation:

This problem involves definite integration (anti-derivatives).

If dy/dx = 6x^(1/2) - 5, then dy = 6x^(1/2)dx - 5dx.

(1/2) + 1

This integrates to y = 6x

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

(1/2) + 1 x^(3/2)

= 6 ------------ + C

3/2

or: 4 x^(3/2) + C

and the ∫5dx term integrates to 5x + C.

The overall integral is:

4 x^(3/2) + C + 5x + C. better expressed with just one C:

4 x^(3/2) + 5x + C

We are told that the curve represented by this function goes thru (4, 20).

This means that when x = 4, y = 20, and this info enables us to find the value of the constant of integration C:

20 = 4 · 4^(3/2) + 5·4 + C, or:

20 = 4 (8) + 20 + C

Then 0 = 32 + C, and so C = -32.

The equation of the curve is thus 4 x^(3/2) + 5x -32

(1/2 + 1)

7 0

3 years ago

There are many cylinders for which the height and radius are the same value. Let

VashaNatasha [74]

Answer:

Relation between V and c is represented as:

$V = \pi c^{3}$

When c is halved, V becomes $\frac{1}{8}$ of its initial value.

Step-by-step explanation:

Height of cylinder = Radius of cylinder = c

Volume of cylinder = V

As per formula:

$V = \pi r^{2} h$

Where $r$ is the radius of cylinder and

$h$ is the height of cylinder

Putting $r = h =c$

$V = \pi c^{2} \times c\\\Rightarrow V = \pi c^{3} ......(1)$

The values of c is halved:

Using equation (1), New volume:

$V' = \pi (\dfrac{c}{2})^3\\\Rightarrow \dfrac{1}{8} \pi c^{3}$

By equation (1), putting $\pi \times c^{3} = V$

$V' = \dfrac{1}{8} \times V$

So, when c is halved, V becomes $\frac{1}{8}$ of its initial value.

3 0

3 years ago

Please help me with this problem. image attached.

Thepotemich [5.8K]

Answer is BF...hope this helps

6 0

3 years ago

6+(-4 3/4)+(-2 1/8)<br> Fraction in simplest form

Bas_tet [7]

Answer:

6-43/4-21/8

6(-68-21/8)

48-107/8

-59/8

4 0

2 years ago

10∙20=8∙d210•20=8•d2 .

tekilochka [14]

Is that the whole equation? Exactly from the book or paper?

5 0

3 years ago