Select the symbol = (equal to) or ≠ (not equal to) to make the expression true.

Mathematics

2 answers:

castortr0y [4]2 years ago

8 0

Answer:

The symbol would be '='

Step-by-step explanation:

Two sets are called equal if they contains same elements in them ( however in any order ),

Here, the given sets,

{2, 4, 6}

{6, 4, 2}

Since, both sets having the elements 2, 4 and 6,

Hence, we can say that,

Sets {2, 4, 6} and {6, 4, 2} are equal sets,

Or {2, 4, 6} = {6, 4, 2}

Advocard [28]2 years ago

3 0

It is equal to 2+6=8 4+4=8

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a) C

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a) A linear equation can be written as $y=mx+c$ where $m$ is the slope and $c$ is the intercept on the $y$ -axis. The slope describes how $y$ changes when $x$ changes. A negative value means the it is a decreasing change. In our case, $y$ is $A$ and $x$ is $t$ . Thus, the slope of the equation is $m=-0.062$ . This means that the area of glacier is decreasing by $0.062 \text{km}{}^2 = 62000 \text{m}{}^2$ every year since 2000.

b) The $A$ -intercept (= 16.2 $\text{km}{}^2$ ) represents the area covered when $t=0$ . But $t=0$ starting from year 2000. This intercept then represents the area covered by glacier in the year 2000. Therefore, the area covered by glacier in 2000 was 16.2 $\text{km}{}^2$ .

c) $A=f(t)$ means the area covered after year 2000. Setting it to 12 means the area covered after $t$ years is 12 $\text{km}{}^2$ ). $t$ is therefore the number of years since 2000 that the total area covered will be 12 $\text{km}{}^2$ ).

d) $f(12)=16.2−0.062\times12 =16.2-0.744 = =15.456 15.5 \text{km}{}^2$ to 1 decimal place.

e) The term involving $t$ represents the disappearing area. In 12 years, the disappeared area is $0.062\times12=0.744 =0.7 \text{km}{}^2$ to 1 decimal place.