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
Alex Ar [27]
3 years ago
9

The atomic number of an element is the same as its _________________.

Social Studies
1 answer:
elena-s [515]3 years ago
6 0
The atomic number of an element is the same as the -number of protons.
You might be interested in
Beth is a 3-year-old who is working on a craft project at preschool. She has to be repeatedly reminded to sit still, to continue
Lapatulllka [165]
Beth has adhd because in that case she gets distracted easily and fidgets a lot
5 0
3 years ago
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof…" —First Amendment
nydimaria [60]
It is likely C, the Senate and the house of representatives...
6 0
2 years ago
3.6.46-T Consider the following sample data for two variables. x 7 8 5 3 9 y 7 5 9 7 7 a. Calculate the sample covariance. b. Ca
Mrac [35]

Answer:

1. Co-variance= -1.2

2. correlation coefficient= -0.4404

3.  There is weak negative relationship between x and y.

Explanation:

1.

Co-variance= Cov(x,y)= sum[(x-xbar)(y-ybar)]/n

xbar=sumx/n=32/5=6.4

ybar=sumy/n=35/5=7

x 7 8 5 3 9

x-xbar 0.6 1.6 -1.4 -3.4 2.6

y 7 5 9 7 7

y-ybar 0 -2 2 0 0

(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0

Cov(x,y)= sum[(x-xbar)(y-ybar)]/n=-6/5=-1.2

Cov(x,y)=-1.2

2.

correlation coefficient=r

r=\frac{sum(x-xbar)(y-ybar)}{\sqrt{sum(x-xbar)^2sum(y-ybar)^2} }

x 7 8 5 3 9

x-xbar 0.6 1.6 -1.4 -3.4 2.6

y 7 5 9 7 7

y-ybar 0 -2 2 0 0

(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0

(x-xbar)² 0.36 2.56 1.96 11.56 6.76

(y-ybar)²  0 4 4 0 0

r=\frac{-6}{\sqrt{23.2(8)} }

r=-0.4404

3. Since the value of correlation coefficient is negative and less than 0.5 , so, we can say that there is weak negative relationship between x and y.

7 0
3 years ago
A scientist has invented a pill that can replace sleep. It is organic, cheap, and the only side effect is the elimination of dre
Shkiper50 [21]

Answer:

<em>Yes, I foresee the problem of inability to process emotional issues caused by lack of dreaming.</em>

<em></em>

Explanation:

Dreams are thought to occur during the REM (rapid Eye Movement) sleep, but can also occur in all stages of sleep. During this REM sleep that occurs at intervals during the night, characterized by rapid eye movements, more dreaming and bodily movement, and faster pulse and breathing,<em> there is an absence of anxiety-triggering molecule noradrenaline in our brain. Also, we experience atonia, which is believed to occur to keep us from acting out our dreams</em>. During this REM sleep, research has shown that key emotional and memory-related parts of the brain are reactivated as we dream. <em>This means that emotional memory reactivation is occurring in a brain free of a key stress chemical, which allows us to re-process upsetting memories in a safer, calmer environment.</em>

We can infer from the statements above that, the elimination of dreaming by the drug might result in memory reactivation in an otherwise stressed brain. This might lead to memory fuzziness, inability to concentrate, and most importantly, inability to process emotional issues. This might eventually not be worth the 25 years saved by eliminating sleep.

8 0
3 years ago
Which of these would require a significant but temporary budget revision?
o-na [289]
A cuz it has sum to do with budget
3 0
3 years ago
Other questions:
  • The beaches along fire island consists of particles with diameters from 0.01 cm to 0.1 cm. Identify the sedimentary rocks that w
    6·1 answer
  • ​which process best illustrates the effect of development stages on the interaction between instinct and learning
    8·1 answer
  • The Greeks were first write a acrostic poem use word and phrase that started with each letter in the topic . use words in the st
    15·1 answer
  • Sheila almost got hit by a car at a street corner because she was too busy texting on her phone. From that day on, Sheila looks
    15·2 answers
  • Euripedes is a fictional student of Aristotle. Following his teacher’s line of thought, Euripedes proudly declares his commitmen
    11·1 answer
  • Why do we still use fables from ancient Greece today?
    13·2 answers
  • How does banking affect the money supply?
    11·1 answer
  • I will give 100 points if right
    9·1 answer
  • Can anybody give me a list of words that describes the Vietnam war
    10·1 answer
  • How far east can you travel before you are travelling west?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!