These are my last couple! Please Help In Math.
posted by Holly .
53.)
49x2 = 7Ö 7
a. 5/4
b.5/4
c. 11/4
d. 11/4
79.)
10
E 3n2
n=4
a. 14+17+20+...+32
b. 28+31+34+...+43
c. 10+13+16+...+28
d. 9+14+17+...+30
66.
ln 1
√e
a. √e
b. 1/2
c. 1/e
d. 1/2
67.
Solve:
e3x = 8
a. ln 5
b. 3 ln 8
c. ln 8
3
d. ln 3
8

Your questions are incomplete and many contain unexplained symbols.