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
Neko [114]
3 years ago
7

(x,-4) and (2,8); m=_3

Mathematics
1 answer:
DerKrebs [107]3 years ago
5 0

\bf (\stackrel{x_1}{x}~,~\stackrel{y_1}{-4})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{8}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{8-(-4)}{2-x}=\stackrel{\stackrel{m}{\downarrow }}{-3}\implies \cfrac{8+4}{2-x}=-3 \\\\\\ \cfrac{12}{2-x}=-3\implies 12=(2-x)(-3)\implies 12=-6+3x \\\\\\ 18=3x\implies \cfrac{18}{3}=x\implies 6=x

You might be interested in
Last years sales at the drive in movie theater totol 144.600. This year's sales should increase by 1/3. how much should sales in
KATRIN_1 [288]
A] Given that the last years's sales was $144,600 and this years sales should increase by 1/3. Then:
i] Amount the sales should increased by will be:
(last year's sales)*(increase)
=144,600*(1/3)
=48,200

ii] The sales in the new year will be:
(last year's sales)+(increase)
=144600+48600
=$192, 800

2] Given that the sales of hifi which included 6% tax was 205,000. The actual sales was:
Actual percentage sales=100%
percentage sales after taxation=100-6=94%
thus the  actual sales was:
(100)/(94)*205,000
=218, 085.1064

3]Given that the rate per $100 is $0.83, and the insurance was for 90000, the insurance premium will be:
(total insurance) *(unit rate)/(number of units)
plugging the values we obtain:
90000*0.83/100
$747

6 0
2 years ago
Read 2 more answers
Need help with 2 questions !!! It's congruent triangles!! will award brainliest, please help
Blizzard [7]

Answer:

Sorry about the first but I'm pretty sure the second one is MJT if that's what the question is asking.

Step-by-step explanation:


7 0
3 years ago
A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour. What is th
e-lub [12.9K]
25 mph the train is accelerating at a constant rate<span />
4 0
3 years ago
Exploring the graph of y equals cosine Theta​
irga5000 [103]

Answer:  see below

<u>Step-by-step explanation:</u>

The coordinates on the Unit Circle are (cos, sin). Since we are focused on cosine, we only need to focus on the left side of the coordinate. The cosine value (left side) will be the y-value of the function y = cos x

Use the quadrangles (angles on the axes) to represent the x-values of the function y = cos x.

Quadrangles are: 0°, 90°, 180°, 270°, 360°  <em>(360° = 0°)</em>

Together, the coordinates will be as follow:

\boxed{\begin{array}{c||c|c||c}\underline{(cos,sin)}&\underline{x=angle}&\underline{y=cosx}&\underline{\quad (x,y)\quad}\\(1,0)&0^o&1&(0^o,1)\\(0,1)&90^o&0&(90^o,0)\\(-1,0)&180^o&-1&(180^o,-1)\\(0,-1)&270^o&0&(270^o,0)\\(1,0)&360^o&1&(360^o,1)\end{array}}

8 0
2 years ago
What is the test that you can do to tell if a graph represents a function?
LenKa [72]
B. the vertical line test
3 0
2 years ago
Read 2 more answers
Other questions:
  • According to Professor Zarkov's correlational data, there is a statistically significant relationship between the socioeconomic
    14·1 answer
  • PLEASE HELP!! (only need answers to B and C)
    6·1 answer
  • Divide £24.50 in the ratio 3:4
    5·1 answer
  • 12. The table shows the number of people who attended a
    5·1 answer
  • Nicole reads 27 chapters of a book in 9 hours what is her rate in chapters per hour
    14·1 answer
  • SOLVE THIS AND GET 30 POINTS AND BRAINLY!!!!!!!!!!!!!
    10·2 answers
  • How much can a 12cm high
    14·2 answers
  • Evaluate the following expression.<br> (-5+7 x 1)-9x5
    10·2 answers
  • Convert 3.12 mm into cm, m and km.​
    12·1 answer
  • Over 7 months, the weight of a baby measured in pounds doubled. Does its weight measured in kilograms also doubled
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!