1) 2a = 9b ⇒ 2:9
2) a + b = 3b ⇒ a = 2b ⇒ 1:2
Answers: 2:9 and 1:2
Answer:
7290
Step-by-step explanation:
Put 5 in the formula and evaluate.
a(5) = 90·3^(5-1) = 90·81 = 7290
There will be 7290 bacteria at the beginning of hour 5.
Answer:52.714
Step-by-step explanation:Used desmos to find the mean.
Answer:
shift
Step-by-step explanation:
shift
Answer:

x = 8 when y = 8
Step-by-step explanation:
explanation is in the image