Answer:
10800
Step-by-step explanation:
The number of bacteria in a colony growing exponentially. At 4 pm yesterday the number of bacteria is 400.And at 6 pm yesterday it was 3600. How many bacteria in the colony at 7 pm?
Step-by-step explanation:
B = B₀ Kⁿ
At 4 pm yesterday the number of bacteria is 400
B₀ = 400
n = number of hrs
at 6 pm yesterday it was 3600 => n = 6- 4 = 2 hrs
B₂ = 3600
=> 3600 = 400 * k²
=> k² = 9
=> k = 3
At 7 Pm Yesterday
n = 7-4 = 3
B₃ = 400 * 3³
=> B₃ = 27 * 400
=> B₃ = 10800
bacteria in the colony at 7 pm = 10800
or B₂ = 3600 & n = 7-6 = 1
Then B₃ = 3600 * 3¹ = 10800
And boom here
Answer:
<u>-22</u>
Step-by-step explanation:
When you multiply a positive and negative number together, it becomes negative.
Multiplication is repetitive addition.
11(-2) = -11 + -11 = -22
Answer:
15.50 per book
Step-by-step explanation:
48.48 - 1.98 (the magazine)
46.50
46.50/ 3
15.50 per book
Hope this helps!!!
Answer:
x=-1/2
Step-by-step explanation:
-5(x-3+7x=35)=-5(x-3+7 <em>x </em>35=x)
(-5)x+(-5)(-3)+(-5) <em>x</em> 7x=35
-5x+5x<em>x </em>3-5 <em>x </em>7x=35
-40x+15=35
The gaph should be a parabola