3 years ago

Classify the real number(natural,whole,integer,rational,irrational).

Mathematics

1 answer:

Ede4ka [16]3 years ago

5 0

Answer:

Racional porque sua raiz é igual a 7.

Step-by-step explanation:

You might be interested in

6+(-3)=<br>answer question plz

34kurt

Answer:

-3

Step-by-step explanation: Because it is just like saying 6-3

6 0

3 years ago

Read 2 more answers

Which graph fits y=2x+1?

alekssr [168]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an

____ [38]

Answer: 70 meters.

Step-by-step explanation:

Observe the figure attached.

The distance between the walls is:

$DE=AD+AE$

<em />

Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:

- Calculate the distance AD:

$cos\alpha=\frac{adjacent}{hypotenuse}\\\\cos(60\°)=\frac{AD}{60}\\AD=30m$

- Calculate the distance AE:

$tan\beta =\frac{opposite}{adjacent}\\\\tan(45\°)=\frac{40}{AE}\\\\AE=\frac{40}{tan(45\°)}\\\\AE=40m$

Therefore the distance between the walls is:

$DE=30m+40m=70m$

6 0

3 years ago

Read 2 more answers

I Need help with this please it’s Algebra and it’s 6 days late

Gnom [1K]

1. (x+8)(x-5)
3. 15.2

5 0

3 years ago

What is the product?

Alona [7]

Answer:

$\boxed{- 12 {s}^{2} + 11st - 2 {t}^{2} }$

Step-by-step explanation:

$= > ( - 3s + 2t)(4s - t) \\ \\ = > - 3s(4s - t) + 2t(4s - t) \\ \\ = > ( ( - 3s) \times 4s )- (( - 3s) \times t) + (2t \times 4s) - (2t \times t) \\ \\ = > - 12 {s}^{2} - ( - 3st) + 8st - 2 {t}^{2} \\ \\ = > -12 {s}^{2} + 3st + 8st - 2 {t}^{2} \\ \\ = > - 12 {s}^{2} + 11st - 2 {t}^{2}$

7 0

3 years ago