Find the rule, in general form (ax^2+bx+c) for: A function with the unique zero -2 and passing through the point P (-1,3). How do I do this question and what is a unique zero? Thank you!
Find the rule, in general form (ax^2+bx+c) for: A function with the unique zero -2 and passing through the point P (-1,3). How do I do this question and what is a unique zero? Thank you!
3 answers · Mathematics · 6 years ago
• Proof for n^2 is odd if n is odd?

Trying to learn how to write proofs. I decided to practice a direct proof approach. axiom 1: n is even if n=2k for some integer k axiom 2: n is odd if n=2k + 1 for some integer k Theorem: If n is an odd integer, then n^2 is an odd integer. Proof: Let n = 2k+1, for some ineteger k n^2 = n * n = (2k+1) * (2k+1) = 4k^2 + 4k +... show more
Trying to learn how to write proofs. I decided to practice a direct proof approach. axiom 1: n is even if n=2k for some integer k axiom 2: n is odd if n=2k + 1 for some integer k Theorem: If n is an odd integer, then n^2 is an odd integer. Proof: Let n = 2k+1, for some ineteger k n^2 = n * n = (2k+1) * (2k+1) = 4k^2 + 4k + 1 = 2(2k^2+2k) + 1 This seems a bit incomplete...any feedback?
3 answers · Mathematics · 6 years ago
• Set up an equation and solve the problem.?

A strip of uniform width is to be cut off of both sides and both ends of a sheet of paper that is 21 inches by 9 inches, in order to reduce the size of the paper to an area of 28 square inches. Find the width of the strip. =)
A strip of uniform width is to be cut off of both sides and both ends of a sheet of paper that is 21 inches by 9 inches, in order to reduce the size of the paper to an area of 28 square inches. Find the width of the strip. =)
1 answer · Mathematics · 7 years ago
• Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution.?

Solve using the five step process, show all steps. The work surface of Anita’s desk is a rectangle that is twice as long as it is wide. If the area of the desk is 18ft2, find the length and the width of the desk
Solve using the five step process, show all steps. The work surface of Anita’s desk is a rectangle that is twice as long as it is wide. If the area of the desk is 18ft2, find the length and the width of the desk
4 answers · Mathematics · 9 years ago
• How can I solve this algebraically?

5x^2 - 6x + 2 = 0 Answer is: (3 ± i) / 5
5x^2 - 6x + 2 = 0 Answer is: (3 ± i) / 5
4 answers · Mathematics · 9 years ago