All of those numbers are . . .
-- real numbers
-- rational numbers
-- natural numbers
-- integers
-- greater than 11.9
-- positive numbers
-- less than 84.1
-- written with two digits
-- multiples of 3
-- multiples of either 12 or 7
A^2 + b^2 = c^2....where a and b are the legs, c is the hypotenuse
3^2 + b^2 = 7^2
9 + b^2 = 49
b^2 = 49 - 9
b^2 = 40.....take sqrt of both sides, eliminating the ^2
b = square root of 40 <==
Answer:
what grade are you??........
Answer:
charge for d days=d×75$
charge for k kilometers=k×65cents
total cost=75d$+k×0.65$
c=(75d+0.65k)$