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
iragen [17]
3 years ago
9

A sociology teacher asked his students to complete a survey at the beginning of the year. One survey question asked, "Do you hav

e a job?"Another question asked, "Do you study more than 5 hours a week?" The probability that a student worked is 0.7, the probability that a student studies more than 5 hours a week is 0.3 and the probability that a students works and studies more than 5 hours per is 0.2.
Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
6 0

wjejekekwnenrnwone fncoeo2mekxnfn3dodnr Hence Proved keodmmdeooxdmemdopxown2skox e

You might be interested in
Simplify the left side of equation so it looks like the right side. cos(x) + sin(x) tan(x) = sec (x)
uranmaximum [27]

Step-by-step explanation:

Consider LHS

\cos(x)  +  \sin(x)  \tan(x)  =  \sec(x)

Apply quotient identies

\cos(x)  +   \sin(x) \times  \frac{ \sin(x) }{ \cos(x) }  =  \sec(x)

Multiply the fraction and sine.

\cos(x)  +  \frac{ \sin {}^{2} (x) }{ \cos(x) }  =  \sec(x)

Make cos x a fraction with cos x as it denominator.

\cos(x)  \times  \cos(x)  =  \cos {}^{2} (x)

so

\frac{ \cos {}^{2} (x) }{ \cos(x) }  +  \frac{ \sin {}^{2} (x) }{ \cos(x) }  =  \sec(x)

Pythagorean Identity tells us sin squared and cos squared equals 1 so

\frac{1}{ \cos(x) }  =  \sec(x)

Apply reciprocal identity.

\sec(x)  =  \sec(x)

7 0
3 years ago
Please help! Will give brainliest to correct answer
saveliy_v [14]

Answer:

Correct option is (C).

Step-by-step explanation:

Because in figure,

°.°point B is fixed at plane.

.°.Center is B.

& °.° Image is enlargement.

.°. scale factor will be greater than 1

Now,

scale factor = A'B'/AB

= 24/6

= 3

So correct option is (C).

#$# HOPE YOU UNDERSTAND #$#

#$¥ THANK YOU ¥$#

❤ ☺ ☺ ☺ ☺ ☺ ☺ ❤

5 0
3 years ago
Ramp 10 feet high and 32 long
madam [21]

A. IMA = 32/10 = 3.2

8 0
3 years ago
Read 2 more answers
On which number line are -3 and its opposite shown?
netineya [11]

Answer:

it would be 3

Step-by-step explanation:

your welcome

7 0
3 years ago
Angles A M Y and Y M B form a line. Angles Y M B and B M X form a line. Angles X M A and A M Y form a line. Choose each angle to
ExtremeBDS [4]

Answer:

AMY

BMY

BMX

Step-by-step explanation:

I took the assignment

3 0
3 years ago
Read 2 more answers
Other questions:
  • Is 2.22 irrational or rational?
    14·2 answers
  • I. AM .SO. CONFUSED. HELP. PLZ.
    13·1 answer
  • FIRST QUESTION CORRECT GETS BRAINLIEST!!!
    12·1 answer
  • Geometry! Please help. See image. BRAINLIEST!
    9·1 answer
  • How do you know what number to multiply everything by using the elimination method on systems of equations??
    12·1 answer
  • Life me kbhi sad mt hona kitne log agree hai ​
    15·1 answer
  • Sally averaged that she spent about 6.8×10^4 seconds training for her weight lifting competition in the month of May. Write this
    7·1 answer
  • 60 minutes = to how many hours​
    6·1 answer
  • The ratio of trumpet players to trombone players in the band is 5:3. What does this mean?
    15·1 answer
  • I need help with this problem ASAP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!