The like terms are 1.3b and -3.2b because they both have the variable b attached to it so you may combine them
(1.3b + (-3.2b) ) + 7.8
-1.9b + 7.8
Hope this helped!
~Just a girl in love with Shawn Mendes
A geometric sequence is a sequence with a common ratio multiplied by previous term to give the next. Lets call x the common ratio, so we know that 4 was multiplied by x to give the second term, and so forth until it was multiplied again and again by x until the 16384 was reached which happens to be the 13th term, that means that 4x was multiplied by x 12 more times to give 16384, that is:
4x^12 = 16384
x^12 = 4096
x = 4096^-12
x = 4.48 x 10^-44
that is the common ratio
Answer:
522
Step-by-step explanation:
The assumption is that the proportion of tagged fish caught is the same as the proportion of all fish that were caught and tagged:
(all fish)/(number tagged) = (sample size)/(number in sample tagged)
all fish = (number tagged) · (sample size)/(number in sample tagged)
all fish = 174 · 39/13
all fish = 522
If all the assumptions are reasonable, the number of fish in the lake is estimated at 522.
For this you want to solve a 2-step equation
0.5x+4.2=5.9
subtract 4.2 from the left and right sides
then divide on the left and right sides
x=3.4 (option B)
