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
Alecsey [184]
3 years ago
12

Identify an equation in point-slope form for the line perpendicular to y =3/4x -4 that passes through (-1, 7).

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
3 0

Answer:

y - 7 = -4/3(x + 1)

Step-by-step explanation:

<u>Given</u>

  • y =3/4x -4
  • (-1, 7)

<u>Convert to point slope form</u>

y - y1 = m(x - x1)

m: represents what the slope is

y - 7 = -4/3(x + 1)

<u>Distribute -4/3</u>

-4/3 * x = -4/3x

-4/3 * 1 = -4/3

y - 7 = -4/3x - 4/3

<u>Add seven in both sides</u>

21/3 -4/3 = 17/3

y = -4/3x + 17/2

<u>Answer</u>

linear equation: y = -4/3x + 17/2

point-slope form: y - 7 = -4/3(x + 1)

You might be interested in
I’m sure that’s the answer but i’m not confident so please help
dimulka [17.4K]

Answer:

the answer is D

Step-by-step explanation:

7 0
2 years ago
Someone help plsss i don’t understand these are my last points no one doesn’t answer my question
UkoKoshka [18]

Answer:

for 1 it is the 3rd graph

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Aperson invest 10,000 shillings for 40 months compounded monthly. Find the accumulated amount If the rate is 5% per annum.​
yanalaym [24]

hi

monthly interest rate is :     \sqrt[12]{1.05}

So in forty month there will be  :  10 000 * ( \sqrt[12]{1.05} )^40  ≈11 776,06

4 0
1 year ago
An air traffic controller spots two airplanes at the same altitude converging to a point as they fly at right angles to each oth
sattari [20]
They are traveling at right angles to each other so we can say one is traveling north to south and the other west to east.  Then we can say that there positions, y and x are:

y=150-600t  x=200-800t

By using the Pythagorean Theorem we can find the distance between these two planes as a function of time:

d^2=y^2+x^2, using y and x from above

d^2=(150-600t)^2+(200-800t)^2

d^2=22500-180000t+360000t^2+40000-320000t+640000t^2

d^2=1000000t^2-500000t+62500

d=√(1000000t^2-500000t+6250)

So the rate of change is the derivative of d

dd/dt=(1/2)(2000000t-500000)/√(1000000t^2-500000t+6250)

dd/dt=(1000000t-250000)/√(1000000t^2-500000t+6250)

So the rate depends upon t and is not a constant, so for the instantaneous rate you would plug in a specific value of t...

...

To find how much time the controller has to change the airplanes flight path, we only need to solve for when d=0, or even d^2=0...

1000000t^2-500000t+62500=0

6250(16t^2-8t+1)=0

6250(16^2-4t-4t+1)=0

6250(4t(4t-1)-1(4t-1))=0

6250(4t-1)(4t-1)=0

6250(4t-1)^2=0

4t-1=0

4t=1

t=1/4 hr

Well technically, the controller has t<1/4 because at t=1/4 impact will occur :)


7 0
2 years ago
PLease Help!
Verizon [17]
You need to work backwards
if it is no more than 9 units away from 8
thus x must be 8-9<x<8+9 solving -1<x<17
so the answer is 4.
8 0
2 years ago
Other questions:
  • there is a pile of 8 blocks: 4 are white, 3 are yellow, and 1 is purple. By placing the blocks side by side in a straight line,
    6·2 answers
  • 7^2 - 13 divided by 24-18
    5·2 answers
  • The sum of three consecutive odd integers is –15. What are the numbers?
    12·1 answer
  • Company A rents a bounce house for $100 rental fee plus $20 per hour. Company B rents a bounce house for $40 per hour . Let h=th
    8·2 answers
  • HELP HELP HELP pleaseesjnsnsns
    15·2 answers
  • What is the approximate perimeter of trapezoid DEFG? Round your answer to the nearest hundredth.
    9·2 answers
  • 16 Which equations represent a relationship where у
    10·1 answer
  • See 35 Points + Brainest
    13·2 answers
  • How many solutions does this graph have?
    9·1 answer
  • Suppose your family is driving home from vacation. The car averages 25 miles per gallon, and you are 180 miles from home. The fu
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!