All categories

3 years ago

- |2| what does this mean?

Mathematics

2 answers:

Lady_Fox [76]3 years ago

4 0

| | these are absolute value brackets anything in the brackets will always be positive

Helga [31]3 years ago

3 0

-2 is the answer

Step-by-step explanation:

-2 is the answer because any thing with | | around it means it's a positive number. but the negative sign makes it negative.

You might be interested in

Identify which of the twelve basic functions listed below fit the description given

DENIUS [597]

Answer:

$b.\:\: y=\sin(x),y=\cos(x)$

Step-by-step explanation:

The range of the sine and cosine functions is $-1\le x\le1$ .

This means that the maximum value the basic sine and cone functions is 1 and the minimum value is -1.

This means that the two functions are bounded above and below.

The correct answer is B.

3 0

3 years ago

Describe fully the single transformation that maps triangle a onto triangle b

AVprozaik [17]

Step-by-step explanation:

dilatation with scale factor (k) = 2

7 0

2 years ago

If the perimeter of square region S and the perimeter of rectangular region R are equal and the sides of R are in the ratio 2:3

horrorfan [7]

Answer: The correct option is (B) 24 : 25.

Step-by-step explanation: Given that the perimeter of square region S and the perimeter of rectangular region R are equal and the sides of R are in the ratio 2 : 3.

We are to find the ratio of the area of R to the area of S.

Let 2x, 3x be the sides of rectangle R and y be the side of square S.

Then, according to the given information, we have

$\textup{Perimeter of rectangle R}=\textup{Perimeter of square S}\\\\\Rightarrow2(2x+3x)=2(y+y)\\\\\Rightarrow 5x=2y\\\\\Rightarrow \dfrac{x}{y}=\dfrac{2}{5}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Therefore, the ratio of the area of R to the area of S is

$\dfrac{2x\times3x}{y\times y}\\\\\\=\dfrac{5x^2}{y^2}\\\\\\=6\left(\dfrac{x}{y}\right)^2\\\\\\=6\times\left(\dfrac{2}{5}\right)^2~~~~~~~~~~~[\textup{Using equation (i)}]\\\\\\=\dfrac{24}{25}\\\\=24:25.$

Thus, the required ratio of the area of R to the area of S is 24 : 25.

Option (B) is CORRECT.

6 0

3 years ago

What is 1/5 ÷ 5<br> someone pls help me

Elena-2011 [213]

Answer: 1/25 or 0.04

Step-by-step explanation:

1/5 divided by 5 for the whole number you have to turn it to a fraction so you would do 5/1

THEN: it becomes 1/5 divided by 5/1 but you have to do the inverse so the inverse of division is multiplying and you will cross multiply so 5*5= 25 and 1*1=1 therefor the final answer is 1/25

5 0

2 years ago

Read 2 more answers

NUMBER 12 PLS I NEED HELP ASAP ILL GIVE 10 POINTS

olchik [2.2K]

Answer:

rule add 15 subtract 10

Step-by-step explanation:

rule add 15 subtract 10

3 0

2 years ago