(a) The 3 and 4 terms of a geometric progression 4 and 8 respectively. Find The first term and the common ratio.
The sum of the first 10 terms,
The value of the 7 term.

below

Step-by-step explanation:

first term : 1

common ratio : 2

sum of the first 10 terms: 1023

value of the 7th tern: 64

can u give me brainliest ?

easy math just plug in a and b

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752