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
SVETLANKA909090 [29]
3 years ago
11

Check all statements that are equivalent to If the sky is not clear, then you don't see the stars ? a. Clear sky is necessary an

d sufficient for seeing the stars. ? b. If the sky is clear, then you see the stars. c. You don't see the stars unless the sky is clear. ? d. Clear sky is necessary to see the stars. e. The sky is clear only if you see the stars. f. Clear sky is sufficient to see the stars. g. If you don't see the stars, then the sky is not clear. h. If you see the stars, then the sky is clear. i. You see the stars only if the sky is clear.
Mathematics
2 answers:
IrinaVladis [17]3 years ago
6 0

Answer: The answer is G

Step-by-step explanation:

If you don't see the stars, then the sky is not clear. This statement is equivalent to saying "If the sky is not clear, then you don't see the stars", because if you rearrange both statements you will find out that they are equivalent to each other.

Mark out all the words in each statement, you will discover that at the end you will have no word left on both side, its just as good as saying 1 - 1 = 0.

JulijaS [17]3 years ago
3 0

Answer:

G

Step-by-step explanation:

You might be interested in
What is the solution to this inequality?
Alika [10]

Answer:

<h2>A</h2>

Step-by-step explanation:

<em><u>e5uiitweyutwwsuoye34t</u></em>

3 0
3 years ago
Read 2 more answers
An Article a Florida newspaper reported on the topics that teenagers most want to discuss with their parents. The findings, the
Sergio039 [100]

Answer:

The estimate is  P__{hat}} \pm E  = 0.37 \pm 0.0348

Step-by-step explanation:

From the question we are told that  

    The sample size is  n =  522

    The sample proportion of students  would like to talk about school is  \r p__{hat}} =  0.37

  Given that the confidence level is  90 % then the level of significance can be mathematically evaluated as

                  \alpha  =  100 - 90

                  \alpha  =  10\%

                  \alpha  =  0.10

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table, the value is  

               Z_{\frac{\alpha }{2} } =Z_{\frac{0.10}{2} } =  1.645

Generally the margin of error can be mathematically represented as

               E =  Z_{\frac{\alpha }{2} } *  \sqrt{\frac{\r P_{hat}(1- \r P_{hat} )}{n } }

=>            E = 1.645 *  \sqrt{\frac{0.37 (1- 0.37  )}{522 } }

=>             E = 0.0348

Generally the estimate the proportion of all teenagers who want more family discussions about school at 90% confidence level is  

                       P__{hat}} \pm  E

substituting values

                     0.37 \pm 0.0348

5 0
3 years ago
Give the most descriptive name for
Ipatiy [6.2K]

Answer:

trapezium................

8 0
3 years ago
Which of these is equal to cos 19°? A) sin 71° B) sin 81° C) cos 71° D) cos 81°
Over [174]
Cos α = sin (90-α) so cos 19 = sin 90-19 = sin 71
7 0
3 years ago
Read 2 more answers
Can I get some help with this one? please? (UwU)
Mama L [17]

Answer:

L to G

d

e

b

c

a

Step-by-step explanation:

Hope this helps :)

8 0
2 years ago
Read 2 more answers
Other questions:
  • Solve the following equation. Determine if the equation is an "identity" or "contradiction."
    14·1 answer
  • . Un turist a parcurs un traseu în trei zile. În prima zi turistul a parcurs
    12·1 answer
  • Which graph represents the piecewise-defined function?
    7·2 answers
  • How many different three-digit numbers can be written using digits from the set 5, 6, 7, 8, 9 without any repeating digits?
    12·2 answers
  • Draw an angle of negative pie over three in<br> Standard position.
    15·1 answer
  • 2 3/7÷2/3×3/4<br><br> Please help I need the homework done by tomorrow
    15·1 answer
  • Will has 49 stickers to put on his 6 folders. If he puts an equal number of stickers
    15·1 answer
  • PLEASEPLEASEPLEASE HELP!!!!!!!!!!! Don't mind to much of the notes, I think y=23, but what is x??
    15·1 answer
  • What is 124/87 SOMEONE?
    11·2 answers
  • A train leaves at 5.35 and arrives at 18.20 how long its journey . how long is the journey
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!