-
At 6:00 A. M., T
noticed that the temperature in her backyard was 27 °F. At 4:00 P. M., the temperature was 12 °F higher.
What change in temperature
must occur for the temperature to once again be 27 °F?

A. -15 °F
B. -12 °F
C. +12 °F
D. +15 °F

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Solve the inequality and graph 6j - 7 < 5

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?