SOLUTION: Is the following expression true or false? Explain your answer. If r = 9 and s = -4, then r² - 2s = 73. Thank you!!

Algebra.Com
Question 106530: Is the following expression true or false? Explain your answer.
If r = 9 and s = -4, then r² - 2s = 73.

Thank you!!

Answer by Nate(3500)   (Show Source): You can put this solution on YOUR website!
If r = 9 and s = -4, then r² - 2s = 73.
Plug the values:
r² - 2s = 73
(9)² - 2(-4) = 73
81 + 8 = 73 False

RELATED QUESTIONS

If p is true, q is true, and r is false, then the truth value of ~[~(p^r) V ~q] is ?... (answered by jim_thompson5910)
Label each statement as true or false. If false, correct the equation If |n + 9| <_ 4... (answered by stanbon)
Evaluate the expression when r is -2 and s is -3... (answered by boilpoil)
If a^n=b then a is the nth root of b true or false? please explain? Thank you... (answered by rothauserc)
Determine the truth value of the following statement if (a) p is true, q is false, and r (answered by solver91311)
Determine the truth value of the following statement if (a) p is true, q is false, and r (answered by solver91311)
Solve by elimination method. 2r - 7s = 4; 7r + 2s = 67 Answer is s=2; r=9, but when... (answered by richard1234)
Is the following expression true or false? {{{ sin a = sin(a - 6pi) }}} Thank... (answered by josmiceli,ikleyn)
If vector u and vector v are in R^m, then -u is in span {vector u, vector v}. True or... (answered by Fombitz)