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
KonstantinChe [14]
2 years ago
12

if the line AB with A(-1,5) and B(3,7) is perpendicular to the line CD WITH C(7,11) AND D(X,23). THEN X=?​

Mathematics
1 answer:
MissTica2 years ago
5 0

Answer:

x=1

Step-by-step explanation:

slope AB = (7-5) / (3 - -1) = 2 / 4 = 1/2

slope CD = (23-11) / (x-7) = 12 / (x-7)  

12 / (x-7) = - 2  ... perpendicular to AB slope 1 = - 1/slope 2

-2 (x-7) = 12

-2x + 14 = 12

-2x = -2

x = 1

You might be interested in
Tommy can exchange 8 euros for 11 dollars.
Oduvanchick [21]
11/8 is 1.375 that times 12 is 16.5 so 16.5 dollars
8 0
2 years ago
Read 2 more answers
Rationalize the denominator<br> x-3/√x+2 - √5​
Pachacha [2.7K]
I got this answer, I think it’s correct though.

8 0
2 years ago
What is the conjugate of 1 + √5
RUDIKE [14]

Answer:

Exact Form:

1 + √5

ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

8 0
2 years ago
Javier is cooling a liquid in a science lab. The liquid starts at 85 degrees, and he cools it 3.5 degrees every minute for 12 mi
bija089 [108]
85- (3.5*12)

* means times


I think this is correct.
7 0
3 years ago
Two families went to Rollercoaster World.
Alona [7]

Answer:

Children ticket cost $30 and adult ticket costs $40.

Step-by-step explanation:

Given that:

x = price of a child ticket

y = price of an adult ticket

According to given statement;

3x+2y=170     Eqn 1

4x+6y=360    Eqn 2

Multiplying Eqn 1 by 3

3(3x+2y=170)

9x+6y=510      Eqn 3

Subtracting Eqn 2 from Eqn 3

(9x+6y)-(4x+6y)=510-360

9x+6y-4x-6y=150

5x=150

Dividing both sides by 5

\frac{5x}{5}=\frac{150}{5}\\x=30

Putting x=30 in Eqn 1

3(30)+2y=170

90+2y=170

2y = 170-90

2y = 80

Dividing both sides by 2

\frac{2y}{2}=\frac{80}{2}\\y=40

Hence,

Children ticket cost $30 and adult ticket costs $40.

6 0
2 years ago
Other questions:
  • PLEASE HELP<br> What is (-1,2) and (1,-4) in slope-intercept form?
    7·1 answer
  • The population of bees in a certain field is modeled by the function, f(0) = 100000 x 0.85", where a denotes the
    6·1 answer
  • Each music class sings 8 songs a week. How many songs does each class sing in 5 weeks? 6 weeks? 7 weeks?
    6·1 answer
  • Find the slope of each of the lines below:
    13·1 answer
  • Write the number 8/25 as a decimal.
    13·1 answer
  • Fred spends $3.15 on 4 1/2 pounds of peanuts. How much did he pay for each pound of peanuts
    6·1 answer
  • Find the missing angles3
    8·1 answer
  • What is the distance between (-5, -5) and (-9, -2)?
    7·1 answer
  • shawn is shoppping for a rug for his dinning room. the rectangular sug he likes measures 5 feat by 7 feet. what is the area of t
    10·1 answer
  • F(x) = x/2 - 3 and g(x) = 3x² + x − 6, find (f+ g)(x)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!