Which set of numbers does 13−−√ belong?
a) irrational numbers
b) whole numbers
c) natural numbers
d) integers
to which sets of numbers does −1/4 belong? select each correct answer.irrational numbers
integers
rational numbers
real numbers

Option A for first question.

Options C and D for second question.

Step-by-step explanation:

Which set of numbers does 13−−√ belong?

The answer is option A: irrational numbers

This is because the square root of 13 is a decimal number that does not end. Irrational numbers are those which cannot be expressed in a ratio form  and also cannot be written as a simple fraction.

To which sets of numbers does −1/4 belong?

The answer is option C and D: rational numbers  and real numbers

This is because real numbers are made up of rational and irrational numbers. We also know that every real number is either a rational number or irrational number.

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.