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
MrMuchimi
3 years ago
9

Are (-1,3) and (1,5) parallel

Mathematics
2 answers:
iris [78.8K]3 years ago
6 0
No It Is Not Parallel

Explanation

...
zubka84 [21]3 years ago
3 0

Answer:

no

Step-by-step explanation:

assuming these are slopes?? two points cant be parallel theyre just dots, no these are not parallel

Please mark as brainliest

You might be interested in
PLS HELP ME XD, WHAT IS 1/4 x 24??
Shkiper50 [21]
1/4 x 24 is 6.

Your welcome
8 0
3 years ago
Quality control studies for Speedy Jet Computer Printers show the lifetime of the printer follows a normal distribution with mea
Anika [276]

Answer:

About 3 years Speedy Jet printers be guaranteed.

Step-by-step explanation:

Given : Quality control studies for Speedy Jet Computer Printers show the lifetime of the printer follows a normal distribution with

mean \mu = 4 and standard deviation  \sigma = 0.78

If the company wishes to replace no more than 10% of the printers.

To find : How long should Speedy Jet printers be guaranteed ?

Solution :

Using Z- table,  

Z value corresponding to 10% or 0.10 = -1.28.

Applying z-score formula,

z=\frac{x-\mu}{\sigma}

The value of x is given by,

x=(z\times \sigma)+\mu

Substitute the values,

x=(-1.28\times 0.78)+4

x=-0.9984+4

x=3.0016

So, approx 3 years.

Therefore, About 3 years Speedy Jet printers be guaranteed.

8 0
2 years ago
The local branch of the Internal Revenue Service spent an average of 21 minutes helping each of 10 people prepare their tax retu
AURORKA [14]

Answer:

The confidence Interval is [- 0.7053  10.4521]

a: The  hypotheses  are

H0: μ1=μ2    against the claim Ha :μ1≠μ2

b. The critical value for t∝/2 for 17 d.f  t > 2.508 and  t < -2.111

c. t= -2.8422

d. The calculated value of t= -2.8422 is less than t < -2.11 the critical value therefore we reject H0 and conclude there is a difference between the two means.

Step-by-step explanation:

When the standard deviations are not the same then the confidence intervals for mean differences are calculated as

(x1`-x2`)- t∝/2 √s1²/n1 + s2²/n2 < u1-u2 < (x1`-x2`)+ t∝/2 √s1²/n1 + s2²/n2

x1`= 21        x2`= 27

n1=  10       n2= 14

s1= 5.6       s2= 4.3

The degrees of freedom is calculated using

υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

= 17

The t∝/2 for 17 d.f = 2.11

Putting the values

(x1`-x2`)- t∝/2 √s1²/n1 + s2²/n2 < u1-u2 < (x1`-x2`)+ t∝/2 √s1²/n1 + s2²/n2

(21-27) - 2.11√5.6²/10+ 4.3²/14 < u1-u2 <(21-27)  +2.11√5.6²/10+4.3²/14

6- 2.11*2.111 < u1-u2 <  ( 6 )  +2.11*2.111

6- 4.4521 < u1-u2 <  ( 6 )  +5.294

- 1.5479 < u1-u2 <  10.4521

The confidence Interval is [- 0.7053  10.4521]

a: The  hypotheses  are

H0: μ1=μ2    against the claim Ha :μ1≠μ2

The claim is that there is a difference in the average time spent by the two services

b. The critical value for t∝/2 for 17 d.f  t > 2.508 and  t < -2.111

The degrees of freedom is calculated using

υ = [s₁²/n1 + s₂²/n2]²/ (s₁²/n1 )²/ n1-1 + (s₂²/n2)²/n2-1

= 17

c. The test statistic is

t= (x1`-x2`)  /√s1²/n1 + s2²/n2

t= (21-27)  /√5.6²/10+ 4.3²/14

t= -6/2.111

t= -2.8422

d. The calculated value of t= -2.8422 is less than t < -2.11 the critical value therefore we reject H0 and conclude there is a difference between the two means.

5 0
3 years ago
Please solve.<br> -7 = z over 2 + 1
mafiozo [28]
-7=z/2+1

What you first need to do is to multiply both sides of the equation by 2

-14=z+2

Now you move the variable to the left side and change within it’s own sign

-z-14=2

Into

-z=2+14

Now you then add the numbers

-z=16

The last part you do is change the sign on both sides in this equation

z=-16

Therefore, z=-16 is your answer in number 16.
6 0
2 years ago
Read 2 more answers
Rewrite as a quotient of two base - 9 logarithms. write your answer in simplest form log 17 =<br>​
4vir4ik [10]

Answer:

\frac{log_{9}17 }{log_{9}10 }

Step-by-step explanation:

Using the change of base rule for logarithms

log_{b} x = \frac{log_{c}x }{log_{c}b } ( where c is the new base )

Given

log 17 , that is log_{10} 17 , then

log_{10} 17 = \frac{log_{9}17 }{log_{9}10 }

8 0
3 years ago
Other questions:
  • Please help I'm very confused (10 points)
    10·1 answer
  • The annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country durin
    8·2 answers
  • 1,025 = ( X × 9) + 17
    5·1 answer
  • A food critic collected data on the lengths of time customers waited for their food. Order the data from least to greatest time.
    7·1 answer
  • Error Analysis  A gardener plans to extend the length of a rectangular garden by 7 feet. Let x represent the​ garden's original
    6·1 answer
  • Work out<br>1/8<br>of 760<br><br>please help​
    5·1 answer
  • Giving brainliest!!!! For correct answer give me a explanation not a long explanation tho.
    5·2 answers
  • You have 26 songs in your MP3 player. After you add some more, you have 39 songs. How many songs did you add?
    13·1 answer
  • A car dealership is buying a car for $10,500. They plan to sell it at $15,540. Calculate the percent increase.
    5·1 answer
  • 1. Sally has a bag of marbles. She has 3 different colored marbles in her bag – orange, black, and purple. If the probability of
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!