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
ser-zykov [4K]
3 years ago
9

Which of the following is the equation of a line perpendicular to the line, , passing through the point (3,9)?

Mathematics
1 answer:
julsineya [31]3 years ago
5 0
Y = -3/2x + 4...slope is -3/2
A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So that means the slope we will need is 2/3...see how I flipped the slope and changed the sign.
Now we use y = mx + b....slope(m) = 2/3....(3,9)...x = 3 and y = 9.
Time to sub...we r looking for b, the y intercept.

9 = 2/3(3) + b
9 = 2 + b
9 - 2 = b
7 = b 

so the perpendicular equation is : y = 2/3x + 7...but we need it in Ax + By = C form....
y = 2/3x + 7....multiply by common denominator of 3 to get rid of fractions
3y = 2x + 21...subtract 2x from both sides
-2x + 3y = 21....<== ur answer...normally, I would have multiplied this by -1 to make x positive...but that is not an answer choice
You might be interested in
What is radius???????
xz_007 [3.2K]

A radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length. Set up the formula for the area of a circle. The formula is A = π r 2 it equals the area of the circle, and r equals the radius.

Solve for the radius.

Plug the area into the formula.

Divide the area by.

Take the square root.

8 0
2 years ago
Instructions: Find the missing side. Round your answer to the nearest tenth.
lbvjy [14]

Using the sine ratio, the length of the missing side is: 11.8.

<h3>How to Find Missing Side Using the Sine Ratio?</h3>

The sine ratio is, sin ∅ = opposite/hypotenuse.

Given the following:

∅ = 24°

Opposite = x

Hypotenuse = 29

sin 24 = x/29

x = (sin 24)(29)

x = 11.8

Learn more about the sine ratio on:

brainly.com/question/2920412

#SPJ1

4 0
2 years ago
How do I do it! Answer pls givin the brainliest
pychu [463]
Ok so she has to pay 30 percent more of the 20 dollars she already has to pay because of the tax and then the tip so you multiply 20 by .30 which is six then you add that to 20 which is 26
8 0
3 years ago
Read 2 more answers
each hour the number of bacteria in dr. nall's petri dish tripled what percent is the population compared to the population the
yan [13]
The starting percent is 100%. After one hour, bacteria tripled, so it is 300%.
3 0
2 years ago
In a random survey of 3,455 adults in the U.S., 1,536 approve of the current economic policy. What percent of adults in the surv
ohaa [14]

Answer:

Amid record unemployment claims and the disruption of commercial activity caused by the novel coronavirus outbreak, the public’s assessments of the U.S. economy have deteriorated with extraordinary speed and severity. Just 23% of Americans now rate economic conditions in the country as excellent or good, down sharply from 57% at the start of the year.Step-by-step explanation:

3 0
2 years ago
Other questions:
  • What is a common denominator for 2/8 and 3/4 in simplest form?
    7·2 answers
  • 4X – 3 =2X+7<br><br><br>....................................​
    9·2 answers
  • Please help! 25 points!<br> Write the equation of a line with slope 3/2 and Y-Intercept -2.
    12·1 answer
  • What is the angle measure that is complementary to a 46° angle?<br> a) 134<br> b) 44°<br> c) 136°
    12·2 answers
  • Let log_(b)A=3; log_(b)C=2; log_(b)D=5 what is the value of log_(b)((A^(5)C^(2))/(D^(6)))
    9·1 answer
  • On the map of a town, the library is located at (–8, 8), and the seafood market is located at (–8, 2). Mary walks from the libra
    11·2 answers
  • 5/8-3/4(8-1/3)+1 what is this
    11·1 answer
  • Ill mark brainlist pllss help
    5·1 answer
  • Hugo lives in the northwest corner of Greene County, Lena lives 29 miles away in the southeast corner, and the office where they
    14·1 answer
  • X
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!