All categories

2 years ago

Can a number be both rational and irrational? Why or why not?

Mathematics

1 answer:

AURORKA [14]2 years ago

6 0

Answer:

Step-by-step explanation:

If it is irrational, it can never be rational unless it is acted upon by something else like a power.

Pi, no matter what is done to it, can never be rational. Once a number is declared as irrational, that is what it remains.

You might be interested in

If y = x2 + 2x , find the value of y when x = 5

Arturiano [62]

Answer:

Step-by-step explanation:

Okay so you are gonna substitute x for 5 so the equations will look like y= (5)2+(5)2

So 10+10 = 20

So y=20

8 0

3 years ago

HELP PLEASE!!! What is the total surface area of the figure shown?

Mashutka [201]

70? (sorry if wrong tho)

8 0

2 years ago

Shawna and her best friend Keisha go shopping.

amid [387]

Answer:

138

Step-by-step explanation:

p(x) = 3x^4 + 2x^3 − 4x^2 + 21

Let x = 2

p(2) = 3*(2)^4 + 2*(2)^3 − 4*(2)^2 + 21

= 3*16+2*8-4*4+21

=48+16-16+21

= 69

This is per girl

There are 2 girls

2 * 69

138

4 0

2 years ago

I am sorry you guys I am simply trying my best to do this Khan Academy, but I simply don't understand trig.

tatuchka [14]

Answer:

Step-by-step explanation:

cosx=(adjacent side)/(hypotenuse)

cosB=3/5

8 0

2 years ago

Simplify. 3^2+ (9-8/2)

solmaris [256]

Hi there! Hopefully this helps!

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

Answer: 14.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

First we calculate 3 to the power of 2 and get 9.

9 + 9 - $\frac{8}{2}$ = 14.

Now we add 9 + 9 to get 18.

18 - $\frac{8}{2}$ = 14.

Then, we divide 8 by 2 to get 4.

18 - 4 = 14.

Then we subtract 4 from 18 to get.....You guessed it, 14!

3 0

2 years ago

Read 2 more answers