Whoever can answer this right will be mark as brainliest ND HELP WITH THIS TY
Read or write in words the following
1. 4x -5 = 13
2. a +8 < 11
3. 15 < b + 2
Write the following symbolically
1. Some number a increased by five is not equal to fifteen
2. Each number b decreased by eight is greater than three
3. Fifteen times each number c is not equal to four

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

1- 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.2- 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 the first question?