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
adelina 88 [10]
2 years ago
7

Write an equation of the line that passes through (5,9) and is perpendicular to the line y=-1/3x+1

Mathematics
1 answer:
777dan777 [17]2 years ago
7 0
Perpendicular = opposite sign and reciprocal slope
Slope would be 3
Y = 3x + b, plug in point
9 = 3(5) + b, b = -6
Solution: y = 3x - 6
You might be interested in
Please help and explain how to do this
Mnenie [13.5K]

Answer:

  4√3

Step-by-step explanation:

The distance formula applies. It tells you ...

  distance = √((x2 -x1)² +(y2 -y1)²)

Filling in the given values, you have ...

  distance = √((-√32 -(-4√2))² +(2√3 -(-√12))²)

  = √((-4√2+4√2)² +(2√3 +2√3)²)

  = √(0 + (4√3)²)

  distance = 4√3

___

We make use of the fact that ...

  a\sqrt{b}=\sqrt{a^2b}\\\\\sqrt{32}=\sqrt{16\cdot 2}=4\sqrt{2}\\\\2\sqrt{3}=\sqrt{2^2\cdot 3}=\sqrt{12}

3 0
2 years ago
What is the answer to the equation: 6/4=15/x ?
Nat2105 [25]
To be able to find the value of X, we have to cross multiply the two fractions then solve the equation.
As so,

6/4 = 15/x

Cross Multiply:

6 x X = 6x
4 x 15 = 60

We cross multiplied, now we can set up the equation:

6x = 60

Simplify: (Get X by itself)

Divide 6 on each side

6 / 6x = 60 / 6
x = 60 / 6
x = 10

Now we have the total of X! To check our answer, we can substitute X for 10 in the original equation.
As so:

6/4 = 15/10

6/4 = 1.5
15/10 = 1.5

Correct! Our answer is X = 10!

Hope I could help you out! If my math is incorrect, or I provided an answer you were not looking for, please let me know and I will be sure to assist you further! However, if my math was well, and correctly, explained, please consider marking my answer as <em>Brainliest!</em> :)

Have a good one!
God Bless.
7 0
3 years ago
The altitude of a triangle is 1cm shorter than the base. If the area of the triangle is 15cm2, calculate the altitude.
WITCHER [35]

Answer:

5 cm

Step-by-step explanation:

We khow that the altitude of this triangle is 1cm shorter than the base

  • Let H be our altitude and B our base and A the area of the triangle
  • A= (B*H)/2 ⇒ 15=(B*H)/2
  • H is 1cm shorter than B ⇒ B=H+1
  • H*(H+1)/2=15 ⇒ H*(H+1)=30⇒ H²+H=30⇒H²+H-30+0

that's a quadratic equation . Let's calculate the dicriminant .

Let Δ be the dicriminant

  • a=1
  • b=1
  • c= -30
  • Δ=b²-4*a*c = 1²-4*1*(-30)=1+4*30=121≥0
  • Δ≥0⇔ that we have two solutions x and y
  • x= (-1-\sqrt{121})/2= (-1-11)/2= -6
  • y= (-1+\sqrt{121})/2= 10/2 = 5

We have a negative value and a positive one

The altitude is a distance so it can't be negative

H= 5cm

6 0
3 years ago
PLZZZZZZZZ BRAINILEST
vivado [14]

Answer:

Mass

Step-by-step explanation:

"Robin collected data from dropping watermelons of different 'MASS' for the same height"

8 0
2 years ago
True or false? <br>Help will make brainliest !​
satela [25.4K]

True is the correct answer.

6 0
3 years ago
Read 2 more answers
Other questions:
  • A random flip of a coin gives either a "head" or "tail", with equal probabilities. Consider an experiment where we repeatedly fl
    14·2 answers
  • Form the union for the following sets. M = { } N = {6, 7, 8, 9, 10} M ∪ N =
    9·1 answer
  • Using the side lengths, determine whether the<br> triangle is acute, obtuse, or right.
    12·1 answer
  • Please help! Will give Brainliest to first answer!
    10·2 answers
  • Find the solution set of the inequality<br> 8x−8≤−72.
    11·1 answer
  • There are 12 boys and 16 girls in a classroom. Which represents the simplified ratio of girls to students in the
    12·2 answers
  • Download QUIZ 8.1-2.doc Can someone PLease help me solve dis
    7·1 answer
  • I need help with this ASAP PLZ!!!!!!!!
    8·1 answer
  • Morgan is reading a 326 page book. The table shows three different plans to finish the book. How many days will it take for Morg
    15·2 answers
  • What is the volume of a sphere with a diameter of 7.9 ft
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!