Ask question

Ask question

All categories

3 years ago

6

Which set is closed under subtraction?

2 answers:

ss7ja [257]3 years ago

8 0

The set of rational numbers.

Gemiola [76]3 years ago

7 0

the answer is the set of rational numbers

You might be interested in

What’s the explicit formula

zepelin [54]

Answer:

2.7g-1

Step-by-step explanation:

5 0

3 years ago

Find the volume of this square pyramid

oksano4ka [1.4K]

Answer:

216

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Find the 10th term in the arithmetic sequence -2, -5, -8, -11

lara31 [8.8K]

The answer is -29, hope this helps

5 0

3 years ago

Read 2 more answers

Plllzzz im new and i neeed help

ella [17]

Answer:

4082

Step-by-step explanation:

Given

The composite object

Required

The volume

The object is a mix of a cone and a hemisphere

Such that:

<u>Cone</u>

$r = 10cm$ ---- radius (r = 20/2)

$h = 19cm$

<u>Hemisphere</u>

$r=10cm$

The volume of the cone is:

$V_1 = \frac{1}{3}\pi r^2h$

$V_1 = \frac{1}{3}\pi * 10^2 * 19$

$V_1 = \frac{1900}{3}\pi$

The volume of the hemisphere is:

$V_2 = \frac{2}{3}\pi r^3$

$V_2 = \frac{2}{3}\pi 10^3$

$V_2 = \frac{2000}{3}\pi$

So, the volume of the object is:

$V = V_1 + V_2$

$V = \frac{1900}{3}\pi + \frac{2000}{3}\pi$

$V = \frac{3900}{3}\pi$

$V = 1300\pi$

$V = 1300 * 3.14$

$V = 4082$

8 0

3 years ago

What 30+30+30+4+60+9+80

mihalych1998 [28]

Answer:

243

Step-by-step explanation:

3 0

2 years ago