#4: Which of the following is true about the expression below? .
A. The expression represents the product of a rational number and a rational number
and is equal to a rational number,

B. The expression represents the product of a rational number and a rational number
and is equal to an irrational number.

C. The expression represents the product of an irrational number and an irrational
number and is equal to a rational number.

D. The expression represents the product of an irrational number and an irrational
number and is equal to an irrational number.

.25

step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.