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
Mariana [72]
3 years ago
6

What is the slope of the line NP

Mathematics
1 answer:
Luba_88 [7]3 years ago
8 0

Answer:

The slope of NP is \frac{-5}{7} ⇒ B

Step-by-step explanation:

  • In any square, every two opposite sides are parallel and every two consecutive sides are perpendicular
  • Parallel lines have the same slope
  • The product of the slopes of the perpendicular lines is -1, which means if the slope of one m, then the slope of the other is \frac{-1}{m} (reciprocal m and change its sign)
  • The rule of the slope of the line which passes through the points (x1, y1) and (x2, y2) is m = \frac{y2-y1}{x2-x1}

In square MNPR

∵ MN and NP are adjacent sides

∴ MN ⊥ NP

∵ M = (3, 8) and N = (-2, 1)

∴ x1 = 3 and y1 = 8

∴ x2 = -2 and y2 = 1

→ Use the rule of the slope above to find the slope of MN

∴ m(MN) = \frac{1-8}{-2-3}

∴ m(MN) = \frac{-7}{-5}

∴ m(MN) = \frac{7}{5}

∵ MN ⊥ NP

∴ The product of their slopes = -1

→ Reciprocal the slope of MN and change its sign

∴ m(NP) = \frac{-5}{7}

∴ The slope of NP is \frac{-5}{7}

You might be interested in
A particular beach is eroding at a rate of 4 centimeters per year. A realtor converts this rate to millimeters per day. Which
Aloiza [94]

Answer:

\frac{4cm}{1year}*\frac{10mm}{1cm}*\frac{1year}{365days}

Step-by-step explanation:

Whenever we are doing unit conversions, we have to remember to make the first ratio and then each successive ratio should be put <em>in such a way</em> that the top and bottom cancels out with each unit and whatever we want, remains.

A simple example would be if we were to just convert from cm to mm. Suppose we want to convert 5 centimeters to millimeters. We can write the ratios is 2 ways:

First:

5cm*\frac{10mm}{1cm}

Second:

5cm*\frac{1cm}{10mm}

The first one is correct since we want mm, mm should be on top and cm should be on bottom form cm and cm to get canceled.

Now, for our problem, we want mm on top and day on bottom. So, cm and year should cancel. Looking at the first choice, the conversion factors are correct & skimming through, we see that

cm and cm cancels (top and bottom), also year and year cancels (top and bottom), it will leave us with mm on top and days on bottom, <em>which is what we want</em>.

First answer choice is right.

6 0
3 years ago
Read 2 more answers
Help me please i’m failing lol
nalin [4]

16) k=176 hope you get to a point were your not failing

6 0
2 years ago
Read 2 more answers
Jessica picks tomatoes in her garden. She fills several bags. This line plot shows the weight of each bag.
Strike441 [17]

Answer:

3/4 lb

Step-by-step explanation:

Lightest: 3 3/4

Heaviest: 4 1/2 = 4 2/4

4 2/4 - 3 3/4 = 18/4 - 15/4 = 3/4

3 0
2 years ago
Read 2 more answers
Evaluate. 102+6⋅7+8 70142150190
Aloiza [94]
Hi.

102+6(7)+8  (your equation)
102+ 42+ 8  (since the order is PEMDAS, multiplication has to go first. 6x7=42
144 + 8        (since you go left to right, 102 +42 has to be 1st. Answer= 144)
152              (now the only thing left is 144 + 8, so do that. Answer= 152.)

Since that's the last step, 152 will be your answer. 

Hoped I helped and if you need anymore you could always ask me~ 

-Dawn

6 0
3 years ago
Read 2 more answers
Previous
o-na [289]
Total weight of the 8 backpacks = 8 x 14 = 112 pounds

Total weight of the 12 backpacks = 12 x 9 = 108 pounds

Total weight of all the 20 backpacks = 220 pounds

Mean weight of the 20 backpacks = 220 ÷ 20 = 11 pounds

----------------------------------------------------------------------------------------
Answer: The mean weight of the 20 backpacks is 11 pounds
----------------------------------------------------------------------------------------
5 0
3 years ago
Other questions:
  • Solve the equation 2/5x - 1 = 9. Complete the solution and check your solution.
    7·1 answer
  • A survey was done that asked people to indicate whether they run or ride a bike for exercise.
    7·2 answers
  • Write forty and eight tenths as a decimal
    11·2 answers
  • Determine if the two triangles are congruent
    13·2 answers
  • I need the answer to this please.​
    6·1 answer
  • A box contains four blue and eight red balls. Jim and Jack start drawing balls from the box, respectively, one at a time, at ran
    7·1 answer
  • Sevilya bought a new computer. She had to pay 8% in sales tax. The cost of the computer is $1,000. How much did she pay in total
    11·1 answer
  • HELP ILL GIVE BRAINLIEST QUICKK
    14·1 answer
  • Find the GCF of 36 and 42
    5·1 answer
  • Use the interactive protractor to determine the measure of the angle. What is mAngleJHG?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!