Which statement about equations and expressions is true? an example of an equation is 4.5 + x = 13.2 because it shows that two expressions are equal. an example of an expression is 4.5 + x = 13.2 because it shows that two equations are equal. an example of an equation is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations. an example of an expression is 4.5 + x = 13.2 because it is a mathematical phrase represented by numbers, a variable, and operations.

An example of an equation is 4.5 + x = 13.2 because it shows that two expressions are equal.

An example of an expression is 4.5 + x = 13.2 because it’s a mathematical phrase represented by numbers, a variable , and operations .

Step-by-step explanation:

An example of an equation is 4.5 + x = 13.2 because it shows that two expressions are equal.

Step-by-step explanation:

An equation is a mathematical sentence that has two equal sides separated by an equal sign.

An equation is a mathematical statement that two things are equal. It consists of two expressions, one on each side of an 'equals' sign.

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

your answer is -9

step-by-step explanation: