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
Allisa [31]
3 years ago
12

Write an equation for a line perpendicular to y = 5x – 2 and passing through the point (-15,8) y=​

Mathematics
1 answer:
AleksandrR [38]3 years ago
8 0
The answer is y = -1/5x + 5

Perpendicular means the opposite reciprocal of the slope. The reciprocal of 5 would be 1/5. The opposite sign would be negative, so -1/5.

The equation that you use is y - y1 = m(x - x1)

The point is (-15,8).

x1 = -15
y1= 8
m= -1/5

y - 8 = -1/5(x - (-15)).

The 15 becomes positive.

y - 8 = -1/5(x+15)

Distribute

y - 8 = -1/5x - 3

Add 8 to both sides

y = -1/5x + 5

You might be interested in
Explain how to find 4×80. show your work.
Alla [95]
To find the product of 4*80:

Remove the 0 from 80 (4*8)

Multiply as you would (or just add 8+8 4 times)

When you get your answer (32), add the 0.

Answer: 320
4 0
4 years ago
Read 2 more answers
Ill mark brainliestttt please help im also going to be asking more :)
AnnZ [28]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the perimeter of each figure
Sliva [168]

Answer:

66) P = 38m

67) P = 32.7m

Step-by-step explanation:

Perimeter of triangle

P = a + b + c

P = 8 + 16 + 14

P = 38m

Perimeter of trapezoid

P = a + b + c + d

P = 6.4 + 13.6 + 6 + 6.7

P = 32.7

3 0
3 years ago
Use a separate sheet of paper to solve the system of inequalities by graphing. Use the graph to decide if the point (1, –1) is i
Lena [83]

Answer:

The answer is no though, the point (1,-1) is below both.

Step-by-step explanation:

So the two inequalities are y≤-3x+3 and 3x+8y≥3

With inequalities you have to know a few things.  First, when you graph you may have to use non solid lines.  for instance, if you had x<5, 5 would not be part of the answer because it is only answers less than 5.  so you represent this by making a dashed line that says "you cannot include values on this line".  Second, with algebra, if you multiply both sides by a negative it flips the inequality.  for instance -y > 54 you would multiply (or divide) by -1 and it would change to y < -54.  Third, when graphing an inequality, treat it like an equation and graph the line as if it were said equation(with solid or dashed lines as needed)  then, if it is y > f(x) you shade in the section above the line and y < f(x) shades in below.  The shaded part is your answer basically.  Now lets get into yours.

y≤-3x+3

It is already in the form y = f(x)  so grapht he line 3x + 3 with a solid line since it is y is less than or equal to,  then shade below that line.  

3x+8y≥3

First get it so y is by itself

3x+8y≥3

8y≥3 - 3x

y ≥ 3/8 - 3/8 x

Now grapht his line  with a solid line and shade the area above it.

Now, the shaded area below between y ≥ 3/8 - 3/8 x and  y≤-3x+3 and the lines are your answer, so you need to check if the point (1, -1) is in this shared shaded area or on one of the lines.

The answer is no though, the point (1,-1) is below both.

6 0
4 years ago
How do you get the measurements of an angle
Rasek [7]

Answer:

Use a ruler or protractor

Step-by-step explanation:

All you have to do it’s

1) Get your ruler/protractor out (And if you don’t have a ruler use a edge/slide of a object for example it would be a side of a book and than measure it, but if you don’t have a protractor, you have to buy one)

2) measure the angle

3) boom!


5 0
3 years ago
Other questions:
  • Deandre bought 9 pounds of rice for $5 . How many pounds of rice did he get per dollar?
    10·2 answers
  • Angela earns $11.50 per hour. If she works more than 40 hours a week she earns double time. This week she worked a total of 48 h
    10·1 answer
  • What is the point slope form of a line with a slope of 5 and points (-1,3)
    12·1 answer
  • 20n^2t / 5n^t what is the answer? and y?
    7·1 answer
  • The sales price of a single family house in Charlotte is normally distributed with mean $210,000 and standard deviation $35,000.
    8·1 answer
  • The quotient of 9 times an unknown number and 16 is 81.
    12·1 answer
  • Hey can someone please help
    8·1 answer
  • What is the scale factor? please help!<br> /
    7·2 answers
  • 8 cm x 10 cm x 17 cm
    12·1 answer
  • Question
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!