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
Yuri [45]
3 years ago
12

7x - Зу = 45 4х + 5y = 19

Mathematics
1 answer:
inysia [295]3 years ago
3 0

Answer:

(6,-1)

Solve for the first varible in one of the equations, then subsititue the other equation.

You might be interested in
Suppose the number of messages that an inbox receives may be modeled by a Poisson distribution. If the average number of message
docker41 [41]

Answer:

0.36427

Step-by-step explanation:

Mean = λ = 18 messages per hour

P(X = x) = (e^-λ)(λ⁻ˣ)/x!

P(X ≤ x) = Σ (e^-λ)(λ⁻ˣ)/x! (Summation From 0 to x)

But the probability required is that the messages thay come in an hour is between 15 and 20, that is, P(15 < X < 20)

P(15 < X < 20) = P(X < 20) - P(X ≤ 15)

These probabilities will be evaluated using a cumulative frequency calculator.

P(X < 20) = 0.65092

P(X ≤ 15) = poissoncdf(18, 15) = 0.28665

P(15 < X < 20) = P(X < 20) - P(X ≤ 15) = 0.65092 - 0.28665 = 0.36427.

You can use the Poisson distribution calculator here

https://stattrek.com/online-calculator/poisson.aspx

4 0
3 years ago
Please i need asp this is me ether failing or passing math!!!
Citrus2011 [14]

Answer:

 

Step-by-step explanation:

8 0
3 years ago
What is X to the third power plus 125?
iren [92.7K]
Here is your answer wish you the best of luck

6 0
3 years ago
Read 2 more answers
Ivan says if the line passes through a negative number on the x-axis its load must be negative can you prove him wrong or right.
spin [16.1K]

Answer:

Step-by-step explanation:

8 0
3 years ago
Gregory has a credit card with a 30-day billing cycle and an APR of 11.95%. The following table shows Gregory’s credit card tran
Luba_88 [7]
Adjusted balance = 622.82 - 45.45 + 78.91 + 16.36 = 672.64
Adjused balance method finance charges = 672.64 x 0.1195/12 = 6.70

Average daily balance = ((622.82 x 3) + (577.37 x 6) + (656.28 x 15) + 672.64 x 6)) / 30 = (1868.46 + 3464.22 + 9844.20 + 4035.84) / 30 = 640.42
Daily balance method finance charges = 640.42 x 0.1195/12 = 6.38
3 0
3 years ago
Read 2 more answers
Other questions:
  • The mass of the Eiffel Tower is about 9.16 ⋅ 106 kilograms. The mass of the Golden Gate Bridge is 8.05 ⋅ 108 kilograms. Approxim
    13·1 answer
  • What is the difference between inductive and deductive reasoning?
    11·1 answer
  • You know you have six pennies, 4 nickels, 1 quarter, and 7 dimes. If you reach into your pocket and randomly pick a coin what is
    13·1 answer
  • Solve 5[8-(9x-7)]+6x=0
    11·1 answer
  • Find the volume of a cylinder with a diameter of 10 inches and a height of 20 inches. Use 3.14 for π.
    7·2 answers
  • Please help!
    9·1 answer
  • I need help fast this is due tomorrow 1st period and can you explain please and thanks.
    9·2 answers
  • I dont understand proportions :( someone please help me understand with an example
    5·1 answer
  • A cheetah ran 196 meters in 8 seconds. Select the TWO correct statements that are true if the cheetah runs at a constant rate.
    9·2 answers
  • Jason planted and staked a tree. The stakes are 21 ft from the base of the tree. They are connected to wires that attach to the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!