2.
The line plot below shows the lengths of all the
pieces of string Emma used for an art pro...
Mathematics, 25.03.2021 19:00 moraleskarina491
2.
The line plot below shows the lengths of all the
pieces of string Emma used for an art project,
She cut all these pieces from one original piece of
string.
PIECES OF STRING
Х
Х
Х
Х
X Х X
+
+
X Х
x
+
Length(feet)
Emma had 1 foot of string left over. How long, in
feet,
was the original piece of string?
A. 18
B. 13
c. 33
D. 65
My
Answers: 1
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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?
Answers: 3
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