Answer: 178%
Step-by-step explanation:
1780/1000 = 178/100
Answer:
9
Step-by-step explanation:
Step 1:
2x - ( 5 - x ) = 13 + x Equation
Step 2:
2x - 5 + x = 13 + x Open the parenthises
Step 3:
3x - 5 = 13 + x Add
Step 4:
3x = 18 + x Add 5 on both sides
Step 5:
2x = 18 Subtract x on both sides
Step 6:
18 ÷ 2 Divide
Answer:
x = 9
Hope This Helps :)
According tome it should come 1 but thre is no option
Answer:
The correct answer is 396.85.
Step-by-step explanation:
The number of bacteria in a culture is increasing according to the law of exponential growth.
Let A =
×
where A is the final count of bacteria after t time and k is the rate of increase and
is the initial count of bacteria.
Given the initial population is 250 bacteria, or
= 250.
The population after 10 hours say M is M = 250 × ![e^{10k}](https://tex.z-dn.net/?f=e%5E%7B10k%7D)
The population after 1 hour say N is N = 250 ×
.
Given M = 2× N
⇒ 250 ×
= 500 × ![e^{k}](https://tex.z-dn.net/?f=e%5E%7Bk%7D)
⇒
= 2× ![e^{k}](https://tex.z-dn.net/?f=e%5E%7Bk%7D)
Taking logarithm to the base e both sides gives the value of k as
10k = ㏑ 2 + k
⇒ k =
= 0.07701
Amount of bacteria present after 6 hours is 250 ×
= 396.85.
Answer:
x^3 - 13x^2.
Step-by-step explanation:
–(5x3 + x2) + 4(x3 – 3x2) Removing the brackets:-
= -5x^3 - x^2 + 4x^3 - 12x^2
= -5x^3 + 4x^3 - x^2 - 12x^2
= x^3 - 13x^2.