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NikAS [45]
3 years ago
8

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.
What type of sampling is demonstrated in the situation above?
negative sampling
convenience sampling
random sampling
census
Mathematics
1 answer:
Katarina [22]3 years ago
5 0

ANSWER EQUALS 567. I THINK


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Oliver has music lessons in Monday Wednesday and Friday.Each lesson is 3/4 of an hour Oliver says he will have lessons for three
Hoochie [10]
Oliver is incorrect because if he were correct he would learn for 2 hours and 15 minutes because, 45 minutes * 3= 2:15 minutes.
4 0
3 years ago
A ferris wheel can accommodate 75 people in 15 minutes. How many people
belka [17]

Answer:

Step-by-step explanation:

15 minutes = 1/4 hour

Therefore:

75 * 4 = the number of people riding in one hour

Thus:

the # of people riding in 1 hour * 4 = the # of people riding in 4 hours

8 0
3 years ago
Read 2 more answers
HELP!! let f be defined as shown. what is f^-1(-3)?
Assoli18 [71]

Answer:

F is the base or variable.

if it is asking for a simplifed version of this its -3/f

Step-by-step explanation:

3 0
2 years ago
18% of 90 is what number?
bearhunter [10]
<span>90/x=100/18</span>
<span>(90/x)*x=(100/18)*x       - </span> multiply both sides of the equation by x
<span>90=5.55555555556*x       - </span>divide both sides of the equation by (5.55555555556) to get x
<span>90/5.55555555556=x </span>
<span>16.2=x </span>
<span>x=16.2</span>
<span>18% of 90=16.2
</span><span>
</span>
4 0
3 years ago
Read 2 more answers
What is the mean height 81,88,69,65,87
Sauron [17]

Answer:

78

Step-by-step explanation:

add them all together and and divide by how many they are -thats the meaning of the mean

81+88+69+65+87=390

390divide by 5=78

i divided by 5 becasue there are 5 numbers

4 0
3 years ago
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