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
kobusy [5.1K]
3 years ago
7

i need help with questions 12-15. you can choose one but if you can give me all the answers i will mark you brainliest

Mathematics
1 answer:
8090 [49]3 years ago
6 0

For lines to be parallel, the slopes have to be the SAME.

For lines to be perpendicular, the slopes have to be the exact opposite. (opposite sign and number)

For example(perpendicular):

slope is 2

the perpendicular slope is -1/2

slope is -4/5

the perpendicular slope is 5/4


12. line a and b are perpendicular


13. Line a: y = 3/5x + 1

Line b: y = 3/5x - 2/5

Line c: y = 4/6 + 5/3x

line a and b are parallel


14. Line a: y = 3x + 6

Line b: y = 6 - 3x

Line c: y = 2/3x + 6

Neither, none of them are parallel or perpendicular


15. Line a: y = -2/3 + 4/3x

Line b: y = -1/4 - 3/4x

Line c: y = 5 + 3/4x

line a and b are perpendicular

You might be interested in
describe how making a list can help you solve a math problem.Write a problem that could be solved by making a list.
uranmaximum [27]
Making a list helps organize the information in a word problem that can otherwise be overwhelming and confusing. Making lists put out a straightforward guide and help you break down the problem so you really understand what you need to do. 
Word problem:
Maya has $55 and she gives her brother $10. She also gives her friend $15 and her sister $5. Her sister pays her back fully but her brother only pays back half of what he owed, promising to pay her back later. Her friend gives back 1/3 of what she owed, also promising to pay her back as soon as she can. How much money does Maya currently have?

In this problem, you have to process the money transactions and making a list will help you go step by step.
6 0
3 years ago
7.1.13 Question Help Use the sample data and confidence level given below to complete parts (a) through (d). A research institut
r-ruslan [8.4K]

Answer:

The Point estimate of the Population proportion  E = 0.039≅0.04

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the sample size 'n' = 992

  and                                     x = 570

The Population proportion

                                   p = \frac{x}{n} = \frac{570}{992} = 0.5745

<u><em>Step(ii):-</em></u>

<u><em>The point estimate of the Population proportion is determined by</em></u>

<u><em></em></u>E =   2.576 \frac{\sqrt{0.574(1-0.574)} }{\sqrt{992} }<u><em></em></u>

E = 0.039≅0.04

<u><em>Final answer</em></u>:-

The point estimate of the Population proportion  E = 0.039≅0.04

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

6 0
2 years ago
How this concepts are used in different situations?​
andriy [413]

Answer:

Positive thinking is all of mind also positive

Step-by-step explanation:

4 0
3 years ago
Can some one help me with this I got the answer but not sure I've the steps?
frez [133]
I belive what you did wrong is that you didint show your work so what you have to do is explain how to do the problem with equations or explain in word form if i were you i would show my work in equations if you need help on how to set it up contact me.
8 0
3 years ago
What is the answer?? Please
Amanda [17]
One must use the division property 
8 0
2 years ago
Other questions:
  • What is the answer to (−f+10)(3f−1) ?
    10·2 answers
  • Daniel is three years older than twice his brother's age. Daniel is 17. Fill in the box with the expression that represents the
    15·1 answer
  • What is mental math for 8x25x23
    6·2 answers
  • A line segment has (x1, y1) as one endpoint and (xm, ym) as its midpoint. Find the other endpoint (x2, y2) of the line segment i
    13·1 answer
  • Write an algebraic expression for a number squared divided by 2 and added to 16
    6·1 answer
  • Help me please I can’t find x
    15·2 answers
  • Helppppppppppppp plssssssssss
    9·1 answer
  • Caroline takes a taxi to the train station. The driver charges a $4.45 initial fee and then $1.05 per mile. Which equation can b
    11·1 answer
  • There were 160 people who voted at the town council meeting. Of these people, 30% voted for building a new basketball court in t
    8·1 answer
  • Which inequality would result in the shaded solution on the unit circle to the right?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!