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coldgirl [10]
3 years ago
11

Amy is doing a science experiment on how a certain bacterium reacts to an antibiotic. She has 3 dishes of identical bacterium sa

mples with 14 bacteria in each dish. She gives an antibiotic to all of the bacteria in one dish. All of the treated bacteria died, and the bacteria in the other two dishes survived.
Is there a sampling bias in the situation above?
A.
No. All 3 dishes are filled with the same number of identical bacteria.
B.
Yes. The antibiotic may not work on the other bacteria.
C.
There is not enough information.
Mathematics
1 answer:
Kay [80]3 years ago
4 0

Answer:

the answer is A please give me hearts and stars because it is correct.

Step-by-step explanation:

it is easy you just mark out the ones you know that is wrong and you are left with the answer a which is very correct.

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2/4 + 10/4=<br> 1<br> 3<br> 7<br> 10
eimsori [14]

Answer:

3

Step-by-step explanation:

10/4 = 2 1/2

2 1/2 + 2/4 = 3

5 0
4 years ago
1. A 2012 survey conducted by the local paper in Columbus, Ohio one week before Election Day
mash [69]

Answer:

The description again for the problem is listed throughout the section below on explanations.

Step-by-step explanation:

A 2012 survey conducted a week since Voting day because the local paper in Columbus asked voters whatever individual they might vote for the state attorney. 37% of respondents said that they'd vote for both the dem candidate. In reality, 41 percent voted for both the Democratic nominee on Elections Day.

The 37% is supported by a survey as well as being a factual estimate. The sample proportion is denoted by "P". Therefore,

⇒  P = 0.37

The specific proportion becomes supplied as a factor of 41% = 0.41. Since the importance of proportion is real.  The proportion of community is represented as p or π

Hence p = 0.41.

4 0
3 years ago
The value of x and the value of y
egoroff_w [7]

Answer:

x= 60 y=50

Step-by-step explanation:

First to find x, all the degrees in a triangle add up to 180 degrees. So 50+70+x=180 which is also 120+x=180 which means x=60. Y is the exterior angle of x and a missing angle. Let's substitute the missing angle with the variable z. 60+50+z=180 which is 110+z=180 which means z is 70. So 180-x+z=y. 180-60+70=y which means y is equal to 50. Hope this helps!

7 0
3 years ago
Read 2 more answers
How do you do 859/2 using long division
Pepsi [2]
So, you will put the numerator inside the symbol and the 2 outside of it so like

429.5
_____
2/859.0
-8
_
05
- 4
--
19
-18
----
10
-10
----
0

So, your answer would be 429.5
or 429 r 1
3 0
3 years ago
St. Augustine grass can grow at the rate of 4 over 7 centimeter per week.
Lady_Fox [76]

Answer:

3 weeks

Step-by-step explanation:

create a proportion of grass growth rate over time:

(\frac{4}{7}÷1) = (\frac{12}{7}÷x )

\frac{4x}{7} = \frac{12}{7}

cross-multiply:

28x = 84

x = 84/28 which is 3

6 0
3 years ago
Read 2 more answers
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