Find the cosine of angle Z.
1. 4/5
2. 2/5
3. 3/5
4. 5/4

3 - 3/5

Step-by-step explanation:

Cosine = adjacent/hypotenuse

So, in this case, cos=6/10=3/5

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

can someone answer this question plz

step-by-step explanation: