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
Greeley [361]
2 years ago
13

DO 11. Find the slope of the line that passes through the points (-4, 7/2) and (3, -21/10)

Mathematics
1 answer:
Evgen [1.6K]2 years ago
5 0

Answer:

-4/5

Step-by-step explanation:

You might be interested in
Evaluate: 2xy^2-3xy-7 if x=-4and y=5
Margaret [11]

Answer:

-147

Step-by-step explanation:

-8 x 25 + 60 -7

5 0
3 years ago
Can someone plz help me with this!
asambeis [7]

Answer:

(arranged from top to bottom)

System #3, where x=6

System #1, where x=4

System #7, where x=3

System #5, where x=2

System #2, where x=1

Step-by-step explanation:

System #1: x=4

2x+y=10\\x-3y=-2

To solve, start by isolating your first equation for y.

2x+y=10\\y=-2x+10

Now, plug this value of y into your second equation.

x-3(-2x+10)=-2\\x+6x-30=-2\\7x=28\\x=4

System #2: x=1

x+2y=5\\2x+y=4

Isolate your second equation for y.

2x+y=4\\y=-2x+4

Plug this value of y into your first equation.

x+2(-2x+4)=5\\x+(-4x)+8=5\\x-4x+8=5\\-3x=-3\\x=1

System #3: x=6

5x+y=33\\x=18-4y

Isolate your first equation for y.

5x+y=33\\y=-5x+33

Plug this value of y into your second equation.

x=18-4(-5x+33)\\x=18+20x-132\\-19x=-114\\x=6

System #4: all real numbers (not included in your diagram)

y=13-2x\\8x+4y=52

Plug your value of y into your second equation.

8x+4(13-2x)=52\\8x+52-8x=52\\0=0

<em>all real numbers are solutions</em>

System #5: x=2

x+3y=5\\6x-y=11

Isolate your second equation for y.

6x-y=11\\-y=-6x+11\\y=6x-11

Plug in your value of y to your first equation.

x+3(6x-11)=5\\x+18x-33=5\\19x=38\\x=2

System #6: no solution (not included in your diagram)

2x+y=10\\-6x-3y=-2

Isolate your first equation for y.

2x+y=10\\y=-2x+10

Plug your value of y into your second equation.

-6x-3(-2x+10)=-2\\-6x+6x-30=-2\\-30=-2

<em>no solution</em>

System #7: x=3

y=10+x\\2x+3y=45

Plug your value of y into your second equation.

2x+3(10+x)=45\\2x+30+3x=45\\5x=15\\x=3

3 0
3 years ago
If a car goes 280 miles in 4 hrs how far could it go in 6 hrs and 30 mins
Zina [86]

Answer:

280/4 = 70 miles per hour. Next, take the unit rate and multiply it by the number of hours you are trying to find. In this case, you are trying to find 6 hours and 30 minutes, but this can also be rewritten as 6.5, since 30 minutes is half an hour. So, in 6.5 hours, the car can go 455 miles

7 0
2 years ago
8. The loudness of a sound depends on_____. A. The width of the wave B. The brightness of the wave C. The length of a sound wave
cupoosta [38]

Answer:

D

Step-by-step explanation:

loudness depends on the amplitude or height of the sound waves

5 0
2 years ago
HELP PLEASE AND THANK YOU????!!!
TiliK225 [7]
10 coins. 70 divided by 7equals 10
6 0
2 years ago
Read 2 more answers
Other questions:
  • 5% of what number is 12
    14·2 answers
  • Last one can anyone help me plz​
    5·1 answer
  • Pepper jack he is putting 742 hard boiled eggs in a carton for community farm fundraiser each carton holds 12 eggs how many cart
    14·1 answer
  • What are the first two terms of the sequence defined recursively by the formula ^an=(^an-1)^2, when ^a4=1604?
    5·2 answers
  • Please help:
    8·1 answer
  • Pls help asap no wrong answer pls
    10·2 answers
  • Reed has an aquarium that holds 12 gallons of
    6·1 answer
  • 1. (07.03 MC)<br> Solve -+<br> 2 2.<br> 5 7<br> - (4 points)<br> 35<br> 0 24<br> 7
    9·1 answer
  • I have no clue on this one either
    9·1 answer
  • there were 936,795 bankruptcy filings in 2018. If there were 310,061 chapter 13 filings, what percent were not chapter 13
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!