Tutors Answer Your Questions about Number-Line (FREE)
Question 160776: I'm not sure if this is the right location to ask these questions. I only have 2 out of 52 questions left in my book and was wondering if anyone could help. First question asks Name all the subsets of the given universal set. U={0,2,4}. I only get (0)(2)(4)(2,4)(0,2)(0,4). the book asks for 2 more .What am I missing. Second question asks. Find the solution set of each open sentence from the given domain. 2x=8; D={Intergers}. I have done 4 of these already can't seem to figure this one out. can anyone please help me finish this book. Thanks.
Click here to see answer by Fombitz(13828)  |
Question 162148: Hi. I am trying to plot 2 fractions and 2 decimals on a number line. They are 1/3, -1/4, -2.5, and 1.0. I have to plot them on a line graph and then put them in order from least to greatest. I am having a lot of trouble with this and hope you can help. Thanks!!!
Click here to see answer by KnightOwlTutor(293)  |
Question 165475: . An “Armstrong number” is an n-digit number that is equal to the sum of the nth powers of its individual digits. For example, 153 is an Armstrong number because it has 3 digits and 13+ 53+33 =153 . What is the digit k in the Armstrong number 16k4?
(A) 2 (B) 3 (C) 4 (D) 5 (E) 6
Click here to see answer by ankor@dixie-net.com(15638)  |
Question 166568: Solve the absolute value inequality. Other than Ø, use interval notation to express the solution set and graph the solution set on a number line.
|2y + 6/3| < 2
a) (-Infinity, -6) U (nonzero, Infinity)
b) (-6,nonzero)
c) (-6, 6)
d) (-Infinity, -6) U (6, Infinity)
Click here to see answer by edjones(7569)  |
Question 178988: Suppose there is a test for a disease that correctly gives positive results for 95% of those having the disease, and correctly gives negative results for 90% of those who do not have the disease. Suppose also that the incidence of the disease is 1%. If a person tests positive for this disease, what is the chance that the person has the disease? Find the exact percentage.
Click here to see answer by kev82(148) |
Question 179815: I was wondering how to solve this problem.
4c=3d+3
c=d-1 4(d-1)=3d+3 = 4d-4=3d+3 subtract 3d to both sides d-4=3 Add 4 to both sides d=7 how do you post ?'s
I got at least this far:
4(d-1)=3d+3
But now, I dont know if I'm soposed to find out what the variables are first or distribute. If I distribute, I dont kno how to distribute this equation. Can you help me?
Click here to see answer by stanbon(57246) |
Question 179815: I was wondering how to solve this problem.
4c=3d+3
c=d-1 4(d-1)=3d+3 = 4d-4=3d+3 subtract 3d to both sides d-4=3 Add 4 to both sides d=7 how do you post ?'s
I got at least this far:
4(d-1)=3d+3
But now, I dont know if I'm soposed to find out what the variables are first or distribute. If I distribute, I dont kno how to distribute this equation. Can you help me?
Click here to see answer by sup(1) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900
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