All categories

3 years ago

Help out last one I can't is like I'm a dumbo this maths is hard man

Mathematics

2 answers:

Nataly_w [17]3 years ago

7 0

If the diameter is 14
the radius should be 7
for the circumference is 44 units
the area is 154 square units

strojnjashka [21]3 years ago

4 0

The area is 154 units

You might be interested in

Triangle DEF has sides of length x, x+3, and x−1. What are all the possible types of DEF?

Natalija [7]

Triangle DEF is scalene

Must click thanks and mark brainliest

6 0

3 years ago

What is the slope of the line on the graph?

podryga [215]

Answer:

Step-by-step explanation:

3 0

2 years ago

What is the value of 35 To the second power

creativ13 [48]

1225.
It is also called 35 squared. It is 35X35
The power is how many times you multiply the number by itself.

6 0

3 years ago

Read 2 more answers

The diameter of a iron sphere is 8 cm. It is beaten and drawn into a wire with a diameter of 2 mm. Find the length of the wire.

djyliett [7]

Answer : The length of the wire is, 8533 cm

Step-by-step explanation :

As the iron sphere is beaten and drawn into a wire. That means, their volume will be equal.

Volume of iron sphere = Volume of cylindrical wire

The formula will be:

$\frac{4}{3}\pi r_1^3=\pi r_2^2h$

where,

$r_1$ = radius of sphere = $\frac{Diamtere}{2}=\frac{8cm}{2}=4cm$

$r_2$ = radius of cylindrical wire = $\frac{Diamtere}{2}=\frac{2mm}{2}=1mm=0.1cm$

h = height of cylindrical wire or length of wire

Now put all the given values in the above formula, we get:

$\frac{4}{3}\pi r_1^3=\pi r_2^2h$

$\frac{4}{3}\times r_1^3=r_2^2h$

$\frac{4}{3}\times (4)^3=(0.1)^2h$

$h=8533.33cm\approx 8533cm$

Therefore, the length of the wire is, 8533 cm

6 0

3 years ago

The ratio of students to teachers at a school is 19:1 how many students are there in each total of people?

Valentin [98]

Answer:

Step-by-step explanation:

19*40= 760

3 0

2 years ago

Read 2 more answers