770.Determine the values ofxthat satisfy the equa-
tion 2^7 x^2 – 1 = 4^3 x.
a.x=
b.x=
c.x=–^17 and x= 1
d.x= ^17 and x =–1
771.Determine the values ofx,if any, that satisfy the
equation 5 = 215 .
a. 3
b.–3
c.log 53
d.no solution
772.Which of the following are characteristics of
the graph off(x) = –e2 – x –3?
a.The graph offlies below the x-axis.
b.y= –3 is the horizontal asymptote for the
graph off.
c.The domain is .
d.all of the above
773.Solve: 2x – 5 = 8
a.–3
b. 3
c. 2
d. 8
774.Solve: 3^2 x= 9 3 x – 1
a. 1
b. 0
c.–1
d.none of the above
775.Solve: 4^2 x – 3 = 41 x
a.–1
b. 0
c. 1
d.none of the above
776.Solve: 125x= 25
a.^32
b.–^32
c.–^23
d.^23
777.Solve: (ex)x – 3= e^10
a.–5 and –2
b.–2 and 5
c.–5 and 2
d.2 and 5
778.Solve: 16^3 x – 1 = 4^2 x + 3
a.–^54
b.–^45
c.^45
d.^54
779.Solve: 4x+ 1= ^12
2 x
a.–2–2
b.^14
c.–^12
d.–2
780.Solve:x 3 x+ 5 3 x= 0
a.–5
b. 5
c. 0
d.0 and –5
781.Solve: 10 x+ 1
2 x
= 100
a.
b.^13
c.–^13
d. ^13
–1^5
2
x+ 1
^3 ^37
14
–^3 ^37
14
- ELEMENTARY FUNCTIONS–