All categories

2 years ago

How many proper subsets does the set { 1,2,3} have

Mathematics

1 answer:

OverLord2011 [107]2 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

If the Math Olympiad Club consists of 13 students, how many different teams of 5 students can be formed for competitions?

rjkz [21]

Answer:

2 teams

Step-by-step explanation:

13 divided by 5 is 2.6, but you cannot split a person in half, so it would be two teams with a remainder of three people.

4 0

3 years ago

Consider the triangle<br> Which shows the order of the angles from smallest to<br> largest?

NeX [460]

Answer: a triangle is a prism or a three angle pyramid

Step-by-step explanation:

3 0

4 years ago

2 points) Suppose w=xy+yzw=xy+yz, where x=et, y=2+sin(t)x=et, y=2+sin⁡(t), and z=2+cos(3t)z=2+cos⁡(3t). A ) Use the chain rule t

Olenka [21]

Answer:

$\frac{\partial w}{\partial t} = y(e^t) +(x+z)*(cos(t)) - 3y*sin(3t)$

Step-by-step explanation:

First, note that

$\frac{\partial x}{\partial t} = e^{t} \\\frac{\partial y}{\partial t} = cos(t)\\$

And using the chain rule in one variable

$\frac{\partial z}{\partial t} = -3sin(3t)$

Now remember that the chain rule in several variables sates that

$\frac{\partial w}{\partial t} = \frac{\partial w}{\partial x} * \frac{\partial x}{\partial t} + \frac{\partial w}{\partial y} * \frac{\partial y}{\partial t} + \frac{\partial w}{\partial z} * \frac{\partial z}{\partial t}$

Therefore the chain rule in several variables would look like this.

$\frac{\partial w}{\partial t} = y(e^t) +(x+z)*(cos(t)) - 3y*sin(3t)$

6 0

4 years ago

Read 2 more answers

By what number should ( -5)(-1) be multiplied so that the product may be equal to (10)(-1)

Rudik [331]

Answer: -2

(-5)(-1)x=(10)(-1)
5x = -10
x = -2

7 0

2 years ago

What is the reciprocal of 8 8/5 ?

Ksenya-84 [330]

Answer:

$\frac{5}{48}$

Step-by-step explanation:

The reciprocal of a number n is $\frac{1}{n}$

Given 8 $\frac{8}{5}$ , change to an improper fraction

= $\frac{5(8)+8}{5}$ = $\frac{48}{5}$ , thus

reciprocal = $\frac{1}{\frac{48}{5} }$ = $\frac{5}{48}$

3 0

3 years ago