Problems A
23
B Determine the antiloganthms of the following numbers
(o) antilog 7 74518 =
(u) antiln 3 87624 -
(p) antilog 0 30103 =
(v) antiln 0 69315 =
(q) antilog (-6 36315) -
(w) antiln ( 2 04961) =
(r) antilog (-8 01106) =
(x) antiln (-96 35760) =
(s) antilog (1 64782) =
(y) antiln 0 00674 =
(t) antilog (-4 49807) =
(z) antiln (-2 30259) =
C Express the following numbers in standard scientific notation
(aa) 10
774518
(ee) lO
200 "
4
(bb) 10°
30103
(ff) IQ-"
49807
(cc) io~
636315
(gg) io°o°oo«35
(dd) IQ801106
6 "Solving for A" Solve for whatever variable is used (X V R etc )
A Simple manipulations
(c)f=24
(d) |(F- 32) = 45
(e) -^- = 720
(f) 5P * - 2 = 6
(g) (0 4)(550)(I 2 - 20) + (35)(T 2 - 20) = (0 1)(120)(100 - T 2 )
4X + 5 _ 4-3*
B Problems involving logarithms Solve for whatever variable is used
(i) log X = 6 34797
0) log(j) = -172222
(k) log (^\ = 2 53033
(i)
lo s(— j = i
47654
(m) logP = ~
24 "
3 3? + 9 183837 (Find P for T = 328)
(n) AC = -(2 303)(1 987)(T)log K (Find AG for 7 = 298
and K = 4 65 x 10
3
)
C Solving the quadratic equation For the equation ax* + bx + c =0, the
solution is