3 2
What is the height of 25 courses of 35 in. bricks with
5
in mortar joints? (25 rows of brick and 24 mortar joints)
2
3
1
The height of 25 courses of 35 in bricks with 5
in.
(Simplify your answer. Type a whole number, proper fraction, or mixed number.)
in mortar joints is 225

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

Joey is asked to name a quadrilateral that is also a rhombus and has 2 pairs of parallel sides. should be his answer