The answer is 1.72 and it would be 2 if u estimated
For question 2 the answer is 420 calories
for question 3 answer is 53 7/8 feet
Answer:
Real numbers are Closed under multiplication.
Irrational numbers are Not Closed under division.
Integers are Closed under subtraction.
Positive rational numbers are Closed under addition.
Step-by-step explanation:
a) The product of any two real numbers is a real number, so the set is closed.
b) In some cases, the quotient may be rational. (√18)/(√2) = 3, for example. So, the set is not closed.
c) The difference of any two integers is an integer, so the set is closed.
d) The sum of any two positive rational numbers is a postive rational number, so the set is closed.
Sorry if its out of order but i hope it helps enough
Standard form for equations is ax + by = c. So all we have to do is transfer this equation into standard form. But, in standard form, there can also be no denominators, so our first step is to multiply each side of the equation by 5 to get rid of all denominators. The equation becomes 5y = 3x + 20. Now we need to get 20 on one side, which we can do by subtracting 3x from each side. The equation becomes -3x + 5y = 20, giving us our final answer of -3x + 5y = 20.
