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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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In the nature of the roots, what if the answer is negative what will be it's root?
Alenkinab [10]

Answer:

d.imaginary and unequal

Step-by-step explanation:

In an effort to address this problem, mathematicians "created" a new number, i, which was referred to as an "imaginary number", since it was not in the set of "Real Numbers". This new number was viewed with much skepticism. The imaginary number first appeared in print in the year 1545

The imaginary number "i" is the square root of negative one.

neg i

An imaginary number possesses the unique property that when squared, the result is negative.

8 0
3 years ago
How do I find the gradient of the line y=x-5
Katen [24]
The gradient is the same as the slope.
The gradient is always before the x variable or is the coefficient of the x variable when an equation is in the slope intercept form.
The gradient in this equation is 1
8 0
3 years ago
If the parent function is y = 1/x, describe the change in the equation y = - 1/x-1 - 10
goldenfox [79]

Answer:

C

Step-by-step explanation:

Firstly, we have 1/x as the parent function. 1/x-1 describes the graph of 1/x to shift 1 unit right. -1/x-1, states that it is reflected across the x-axis. And -1/x-1 -10 states that it is shifted 10 units down.

6 0
3 years ago
Someone please help me with this one
Anna35 [415]

Answer:

k=-2x+9

Step-by-step explanation:

-4x+6=k*2x-3

+3               +3

-4x+9=k*2x

/2x          /2x

-2x+9=k

8 0
4 years ago
The original price of a mountain bike was reduced by $125. If p = the mountain bike's original price in dollars, which algebraic
Damm [24]
P-125 is the answer i believe you are looking for. Since p is the original amount of the mountain bike, and the question says the price was reduced by $125, this means that $125 was subtracted from p, the original price. Therefore, p-125.
8 0
3 years ago
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