Select the property not used in the following

(2+a) - 7
(a + 2) - 7
a + (2 - 7)
a + (-5)
a - 5

associative

commutative

distributive
or
subtraction

Distributive

Step-by-step explanation:

The Distributive Property is multiplication of a number into more than one terms in the parenthesis. Since this has no multiplication happening, it is not used.

answer: what do you mean

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).