2a - b....a = 2 and b = 3
2(2) - 3 =
4 - 3 =
1
H+9.7=-9.7
h=-9.7-9.7
h=-19.4
Answer: No solution
x(5-2)(2-2)=12
x(3)(0)=12
Since its times by 0 the x goes away and it is
0=12
No solution
522 divide 9= 58 58=1hour 58 x 4=232 add 232 to 522 =754
Answer:
212.9 days
Step-by-step explanation:
The bacteria culture initial population is 25 represented by Po and the population after t days is represented by P(t).
Using growth formula:
P(t) = Po ( 1 + r)^t where r is rate in percent and t is time in days
r = 1.28%, P(t) = 375, and Po = 25
substituting this values into the equation above yields
375 = 25 (1 + 1.28/100)^t
375÷25 = ( 1 + 0.0128)^t
15 = (1.0128)^t
take logarithm of both sides
log 15 = log (1.0128)^t remember the law log a^b = b log a
applying the same law gives
log 15 = t log 1.0128
divide both side by log 1.0128
log 15 ÷ log 1.0128 = t log 1.0128 ÷ log 1.0128
t = 212.9 days