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
sergiy2304 [10]
3 years ago
15

Find the slope of the following graph a) 1/2 b) 2 c) -2 d) -1/2

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
7 0

Answer:

c. -2

Step-by-step explanation:

because the linear line goes down we know it is negative

and its not 1/2 because it is rise over run. it runs 1 and rises 2 (or drops 2 because it is negative)

rise over run = -2/1 = -2

You might be interested in
Wal-Mart conducted a study to check the accuracy of checkout scanners at its stores. At each of the 60 randomly selected Wal-Mar
Mamont248 [21]

Answer:

a

The 95% confidence interval is

   0.7811 <  p <  0.9529

Generally the interval above can interpreted as

    There is 95% confidence that the true proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned lie within the interval  

b

  Generally  99% is outside the interval obtained in a  above then the claim of Wal-mart is not believable  

c

 n =  125  \  stores  

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  60  

    The number of stores that had more than 2 items price incorrectly is  k =  52  

   

Generally the sample proportion is mathematically represented as  

             \^ p  =  \frac{ k }{ n }

=>          \^ p  =  \frac{ 52 }{ 60 }

=>          \^ p  =  0.867

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.96

Generally the margin of error is mathematically represented as  

     E =  Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }

=>   E =  1.96  * \sqrt{\frac{ 0.867  (1- 0.867)}{60} }

=>   E =  0.0859

Generally 95% confidence interval is mathematically represented as  

      \^ p -E <  p <  \^ p +E

=>    0.867  - 0.0859  <  p <  0.867  +  0.0859

=>    0.7811 <  p <  0.9529

Generally the interval above can interpreted as

    There is 95% confidence that the true proportion of Wal-Mart stores that have more than 2 items priced inaccurately per 100 items scanned lie within the interval  

Considering question b

Generally  99% is outside the interval obtained in a  above then the claim of Wal-mart is not believable  

   

Considering question c

From the question we are told that

    The margin of error is  E = 0.05

From the question we are told the confidence level is  95% , hence the level of significance is    

      \alpha = (100 - 95 ) \%

=>   \alpha = 0.05

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.645

Generally the sample size is mathematically represented as  

    n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )

=> n=  [\frac{1.645 }}{0.05} ]^2 * 0.867  (1 - 0.867 )

=>   n =  125  \  stores  

4 0
3 years ago
Toya has a monthly mortgage payment of $950. Her annual property taxes are $1200, her PMI is $65/month, and her homeowners insur
m_a_m_a [10]

The answer is D. $243.33

3 0
3 years ago
Zoe and hannah share tips in the ratio 3:7 last week zoe recieved £24 how much did hannah recive last week
torisob [31]

Answer:

56

Step-by-step explanation:

Zoe and Hannah shared tips in the ratio

3:7

Last week Zoe received $24

Hence the amount received by Hannah can be calculated as follows

3/7= 24/x

168= 3x

x= 168/3

= 56

Hence Hannah received €56

8 0
3 years ago
Find the x- and y-intercepts of the graph of 3x + 4y = 32. State your answers as
Aliun [14]

Answer:

  • (32/3, 0)
  • (0, 8)

Step-by-step explanation:

<u>The x- intercept is the point when y = 0:</u>

  • 3x + 4*0 = 32 ⇒ 3x = 32 ⇒ x = 32/3

<u>The y- intercept is the point when x = 0:</u>

  • 3*0 + 4y = 32 ⇒ 4y = 32 ⇒ y = 8
3 0
3 years ago
Read 2 more answers
Hey guys please help anything would be helpful at least try
NikAS [45]
I’m in grade 12 and this has me confused lol the wording is weird but my best guess is 180° around point H and then 2 up 5 right
8 0
2 years ago
Other questions:
  • What is the coefficient of x7 in the expansion of (1 + x)11?
    15·1 answer
  • If I throw a die, find the probability of throwing an odd number or a number less than 3.
    10·1 answer
  • A circle has an area of 324π cm2. What is the radius? a. 18 cm c. 18π cm b. 36π cm d. 36 cm
    7·2 answers
  • HELP PLEASE
    9·1 answer
  • Guess the correlation coefficient, r. ​
    5·1 answer
  • Which expression is equivalent to RootIndex 4 StartRoot x Superscript 10 Baseline EndRoot?
    11·1 answer
  • A boy pulls a wagon a distance of 1.2 km. An applied force of 22N is directed at an angle of 25 degrees above the horizontal. Ho
    15·1 answer
  • What is the mean of swim club a and b
    6·2 answers
  • 8(9s + 3) +9<br> I need help simplifying this
    11·1 answer
  • 4 • 4 • 4 • 4 • 4 • 4 • 4 = 47
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!