Posted by nash on Saturday, May 5, 2012 at 10:08am.
1.Solve 2x = 5x2
C. 0 and 2.322
D. 0 and 0.431
2.Which of these is a factor of 2x100 − x7 − 1?
B. x − 2
C. x + 1
D. x − 1
3.If P(x) is a polynomial with P(6) = 1.12 and P(5) = 0.6 then which of the following must be true?
A. There is a zero for P(x) between x = 6 and x = 5, but it may be a complex number.
B. There is a zero for P(x) between x = 6 andx = 5.
C. There is a zero for P(x) between x = 1.12 and x = 0.6, but it may be a complex number.
D. There is a zero for P(x) between x = 1.12 and x = 0.6.
4.the pH of a solution is given by the formula log c, where c is the concentration of H+ in
gram-ions per liter. Find the pH when that concentration is 5.3 x 107.
5.Find the negative root of x2 − 3 = 0 to the nearest tenth.
6.An account with $300 in it has been earning 3% annual interest compounded continuously for 10 years
with no deposits or withdrawals in that time. How much was in the account 4 years ago?
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