1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
UkoKoshka [18]
3 years ago
8

In your own words, give two reasons why it is important to wash your hands both before and after completing a lab (will give bra

inliest)
Mathematics
2 answers:
N76 [4]3 years ago
8 0
Reason number 1 (before) is that you could contaminate your samples if you have foreign material on your hands.
Reason number 2 (after) is that you could spread<span>/or ingest dangerous chemicals or substances that you have handled in the lab.</span>
quester [9]3 years ago
7 0
1. You dont want to digest possible dangerous chrmicals
2. Your hands could be durty and contaminate the experiment
You might be interested in
HELP!
Flauer [41]

7/50 = 0.14 therefore In order to write it as a fraction out of 100 you move 2 decimal to the right.

Therefore, the answer for the first box is 14/100

The last box obviously being 0.14

6 0
3 years ago
Read 2 more answers
2 1/2r + 1 + 2r = 9 1/10
GalinKa [24]

This should help you here are the steps of your problem :)


2*(1/2)*r+2*r+1 = 9*(1/10) // - 9*(1/10)


2*(1/2)*r+2*r-(9*(1/10))+1 = 0


2*(1/2)*r+2*r-9/10+1 = 0


3*r+1/10 = 0 // - 1/10


3*r = -1/10 // : 3


r = -1/10/3


r = -1/30


r = -1/30


So your answer would be 1/30

4 0
3 years ago
A pair of parallel lines is cut by a transversal, as shown (see figure):
Anestetic [448]
The answer
let p' be the corresponding angle of the angle p (that is because of the prallelism and the transversal, look the image)
but p' and p are correspondant angles implies p'=p,
looking at the figure, p' and q are opposite angles
so q=p' and p'=p implies   q=p
the answer is
<span>p = q</span>

 


4 0
3 years ago
Read 2 more answers
The article "High Cumulative Risk of Lung Cancer Death among Smokers and Nonsmokers" (P. Brennan, et al. American Journal of Epi
Dmitry [639]

Answer:

a)False: In a sample of 100 men who are heavy smokers, exactly 24 of them will contract lung cancer.

b)True: In a sample of 100 men who are heavy smokers, the number who will contract lung cancer is likely to be close to 24.

c)True: As more and more heavy-smoking men are sampled, the proportion who contract lung cancer will approach 0.24. Circle one: TRUE FALSE

7 0
3 years ago
Which question is a statistics question that anticipates variability?
elena55 [62]

Answer:

D) What is the shoe size of the students in my school?

Step-by-step explanation:

"Students in my school" indicates that it is not talking about a particular student. It requires the average shoe size of everybody in the school. Therefore D is the answer.

6 0
3 years ago
Other questions:
  • I surveyed students in my Math II classes to see how many hours of television they watched the night before our big test on tria
    10·1 answer
  • The Seattle Space needle is 604 feet tall. A model of the building is 48 inches tall. What is the ratio of the height of the mod
    6·2 answers
  • HURRY
    5·2 answers
  • What is the length of the focal width x=-1/8y^2
    12·2 answers
  • A vision insurance company selects a SRS of 300 clients who wear contact lenses. They randomly assign 200 clients to the experim
    5·2 answers
  • -7x-2y=-13<br> x-2y=11<br> solve for x and y
    7·1 answer
  • Help PLEASE!!! [URGENT]
    13·1 answer
  • Help pleaseeeeeeeeee
    8·2 answers
  • What are m and b in the linear equation y= 5 + 1x​
    12·2 answers
  • On a piece of paper, use a protractor to construct right triangle ABC with BC=5 cm, m∠B=60°, and m∠C=90°.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!