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
earnstyle [38]
3 years ago
14

I need help on all of these

Mathematics
1 answer:
lord [1]3 years ago
5 0

well #7 is a solution.

y= 9x (4,36)

9 times 4 = 36

36/9=4

so the ordered pair is a solution.

y=3x-5 (7,16)

3 times 7 -5= 16

so once again the ordered pair is a solution.


Hoped this helped.

You might be interested in
Distributive property of 3(2x + 7)
Pavel [41]

Answer:

6x+21

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Simplify:<br>(ay<br>8<br>6.<br>5x - 25 30 - 6x​
maw [93]

Answer:

-x - 2530

Step-by-step explanation:

5x - 2530 - 6x

5x - 6x = -x

-x - 2530

6 0
3 years ago
Read 2 more answers
A check register is a good source of information for budget planning purposes true or false?
olganol [36]
Ill say true but hope its right :)
4 0
3 years ago
Read 2 more answers
Problem: A piece of farmland is a watering plot of land in a circular pattern. A sewer line needs to be installed from a new hou
Musya8 [376]

The entry and exit points of (2, 3), and (12, 6), and 200 ft. extension of the sprinkler system gives;

(1) The sewer line crosses the farmland at (6.53, 4.36), and (8.48, 4.9)

(2) The longest installable sprinkler system is approximately 172.4 feet

<h3>How can the points where the line crosses the farmland be found?</h3>

1. The slope of the sewer line is found as follows;

  • m = (6 - 3)/(12 - 2) = 3/10 = 0.3

The equation of the sewer line can be expressed in point and slope form as follows;

  • (y - 3) = 0.3×(x - 2)

y = 0.3•x - 0.6 + 3

y = 0.3•x + 2.4

The equation of the circumference of the sprinkler can be expressed as follows;

  • (x - 8)² + (y - 3)² = 2²

Therefore;

(x - 8)² + (0.3•x + 2.4 - 3)² = 2²

Solving gives;

x= 6.53, or x = 8.48

y = 0.3×6.53 + 2.4 = 4.36

y = 0.3×8.48 + 2.4 = 4.9

Therefore;

  • The sewer line crosses the farmland at (6.53, 4.36), and (8.48, 4.9)

2. When the farmland does not cross the sewer line, we have;

sewer line is tangent to circumference of farmland

Slope of radial line from center of the land is therefore;

m1 = -1/0.3

Equation of the radial line to the point the sewer line is tangent to the circumference is therefore;

y - 3 = (-1/0.3)×(x - 8)

Which gives;

y = (-1/0.3)×(x - 8) + 3

The x-coordinate is therefore;

0.3•x + 2.4 = (-1/0.3)×(x - 8) + 3

  • x ≈ 7.5

  • y = 0.3 × 7.5 + 2.4 ≈ 4.65

The longest sprinkler system is therefore;

d = √((7.5 - 8)² + (4.65 - 3)²) ≈ 1.724

Which gives;

  • The longest sprinkler system is 1.724 × 100 ft. ≈ 172.4 ft.

Learn more about the equation of a circle here:

brainly.com/question/10368742

#SPJ1

3 0
2 years ago
Given f(x)=9-2x, if f(x)=19, find the value of x. Can some one help please?
eimsori [14]

Answer: -5

Step-by-step explanation: 19 -9 = 10. 10/-2 = -5

6 0
4 years ago
Read 2 more answers
Other questions:
  • -8 + 5x - 2 = 20 solve
    6·1 answer
  • Help me please asap!!!!1
    11·2 answers
  • Geometry math question please help
    7·1 answer
  • Choose the solution(s) of the following system of equations:<br> x² + y² = 6<br> x² - y=6
    15·1 answer
  • Please help picture is above.
    9·1 answer
  • BRAINLIESTTT ASAP!
    7·1 answer
  • Classify the following triangle as acute,obtuse, or right
    8·2 answers
  • I need help plz!!!!!
    9·2 answers
  • What do I do I don’t know the answer
    7·1 answer
  • A square room has a floor area of 25 meters. the height is 3 meters what is the area of one wall
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!