What is the doubling time of bacteria if you start with two bacteria and there are 128 bacteria after 3hrs?A) 15min
B) 30min
C) 45min
D) 1hr

Please explain step by step and how you got the answer. Thank you

Answers

Answer 1
Answer:

Answer:

B) 30min

Step-by-step explanation:

Start with 2 and continue to multiply that by 2 until you get 128

2 x 2 = 4

4 x 2 = 8

8 x 2 = 16

16 x 2 = 32

32 x 2 = 64

64 x 2 = 128

Then start with what you think could be the right answer based on how many intervals there are.

You know it can't be 15 because there definitely isn't enough and you know its not 1hr because theres way more than 3.

So you're left with either B) 30min or C) 45min

It has to be B) 30min because there are 6 intervals and 30min goes into an hour twice, meaning that if every 2 intervals is an hour there are 3 hours.


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I need full solution

3x+y=5  2x-2y=-2 solving systems of equations

Answers

3x+y=5 \ \ /*2 \n 2x-2y=-2 \n \n 6x+2y= 10\n 2x-2y=-2 \n + ----- \n8x=8 \ \ / :8\nx=1 \n \n3*1+y=5 \n y=5-3\ny=2\n \n Answer : \n \n x=1 \n y=2
3x+y=5
2x-2y=-2
x+3y=7
x+3y-3y=7-3y
x=7-3y
3(7-3y)+y=5
21-9y+y=5
21-8y=5
21-21-8y=5-21
8y=-16
8y/8=-16/8
y=-2
x=7/3


In the __________ numbering system, all numeric values are written as sequences of 0s and 1s. a. hexadecimal b. binary c. octal d. decimal

Answers

Answer:

Therefore, the correct answer is b) binary.

Step-by-step explanation:

the binary numbering system, all numeric values are written as sequences of 0s and 1s. The binary system is a base-2 numbering system, which means it only uses two digits: 0 and 1. Each digit in a binary number represents a power of 2. For example, in the binary number 1010, the rightmost digit represents 2^0, the next digit represents 2^1, the next digit represents 2^2, and so on. Binary numbers are commonly used in computer systems to represent and manipulate data. Each binary digit, or bit, can represent two possible states: 0 or 1. By combining multiple bits, binary numbers can represent larger values.

Solve.
Pls Need Help

Answers

Answer:

3/8

Step-by-step explanation:

Since the greatest is 3 1/2 and the least it 3 1/8

3 1/2 - 3 1/8 = 3/8

Which function has a graph with a y-intercept of -4?A. 2x – 4y = 8
B. 2x – 8y = -4
C. 4x – 2y = -8
D. 4x - 2y = 8

Answers

the correct answer would be D. if you rearrange the equation, and cross out common factors, it equals -4

Answer:

D

slope is 2 and y-intercept is (0, -4)

Step-by-step explanation:

4x-2y= 8  move variable x to the right (change signs)

- 2y= -8 + 4x   Divide both sides by 2

y= -4 + 2x        reorder terms using communitive property

y = 2x  -4

y= mx + b

Four friends were born on consecutive years. The sum of their ages is 62. What is the age of the youngest friend?

Answers

Four friends were born on consecutive years.
The sum of their ages is 62. Let's find the age of the youngest friend:
Formula:
4x + 6 = 62
=> First is to Subtract 6 from both sides 4x = 56
Then next thing to do is to divide 4 from both sides:
=> x = 14 14 + 14 + 1 + 14 + 2 + 14 + 3 = 62
 62 = 62
 Thus the youngest age is 14

What is one difference between the binomial distribution and Poisson distribution in terms of their upper bounds?

Answers

Answer: The Binomial distribution assumes a predetermined number of trials, but the Poisson has no upper limit of possible successes.

Step-by-step explanation: