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
IceJOKER [234]
3 years ago
10

Y = -3x+4 and y= 1/2x-3

Mathematics
1 answer:
Papessa [141]3 years ago
8 0

Answer:

{x = 2  , y = -2

Step-by-step explanation:

Solve the following system:

{y = 4 - 3 x | (equation 1)

{y = x/2 - 3 | (equation 2)

Express the system in standard form:

{3 x + y = 4 | (equation 1)

{-x/2 + y = -3 | (equation 2)

Add 1/6 × (equation 1) to equation 2:

{3 x + y = 4 | (equation 1)

{0 x+(7 y)/6 = (-7)/3 | (equation 2)

Multiply equation 2 by 6/7:

{3 x + y = 4 | (equation 1)

{0 x+y = -2 | (equation 2)

Subtract equation 2 from equation 1:

{3 x+0 y = 6 | (equation 1)

{0 x+y = -2 | (equation 2)

Divide equation 1 by 3:

{x+0 y = 2 | (equation 1)

{0 x+y = -2 | (equation 2)

Collect results:

Answer:  {x = 2  , y = -2


You might be interested in
1. It costs $5820 to get new windows for a certain house. Each of the 28 windows costs the same amount.
CaHeK987 [17]
1.A to find the answer, round $5820 to $6000. Then round $28 to $30. Each curtain would cost an estimate of $200.
1.B 5820/28=<span>207.857142857

</span>
4 0
3 years ago
Expand (2 + a)9 using Pascal’s triangle.
Natalija [7]

Answer:

Step-by-step explanation:

The Pascal triangle is used to determine the coefficients of the terms when we expand the expression.

                                             1                                (A + B) ^ 0 = 1

                                         1       1                            (A +B ) ^ 1 = 1A + 1B

                                   1          2        1          (A+ B) ^ 2 = 1A^2 + 2 AB + 1B^2

By extending the triangle, you will get the 9th row, which is your expression, of the coefficients. that is

1          9       36    84    126    126    84    36    9    1

Now, fill in AB in the gaps.

1AB + 9 AB + 36AB + 84AB + 126AB + 126AB +84AB + 36AB + 9AB + 1AB

Next, you need to go from the left to fill out the exponent of A and it will go down from 9 (the exponent of the whole thing) . That is

1A^9B+9A^8B+36A^7B+84A^6B+126A^5B+126A^4B+84A^3B+36A^2B+9A^1B+1A^0B

Next will be the exponent of B. this time, you go from the right and do the same with A. You can go from the left also, but go up from 0 to 9 for the exponent of B

1A^9B^0+9A^8B^1+36A^7B^2+84A^6B^3+126A^5B^4+126A^4B^5+84A^3B^6+36A^2B^7+9A^1B^8+1A^0B^9

The last step is just to simplify the A^0=1 and B^0 =1 at the first and the last terms.

A^9+9A^8B^1+36A^7B^2+84A^6B^3+126A^5B^4+126A^4B^5+84A^3B^6+36A^2B^7+9A^1B^8+B^9

Hope you can learn the method

5 0
3 years ago
What is the value of the angle ?
Ivan

Answer:

47°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles

124° is an exterior angle , thus

77 + ? = 124 ( subtract 77 from both sides )

? = 47°

8 0
3 years ago
What is the measure of<br> с 78<br> ООО<br> 88<br> 96
kupik [55]
78 Give brainliest plz
5 0
3 years ago
Please help as soon as possible
hammer [34]

Answer:

a that the right answer because 25+10+20=55 that rights

6 0
3 years ago
Other questions:
  • What is the awnser to 92 times 68
    5·1 answer
  • Answer please need help
    14·2 answers
  • Given the following function: f(x) = 4x +7<br> Evaluate -3 • f(9) = ?
    8·1 answer
  • Complete the pattern 4 8 12 _ 60 and 1 2 3 10 _
    13·1 answer
  • A summer camp is organizing a hike and needs to buy granola bars for the campers. The granola bars come in small boxes and large
    13·1 answer
  • A/27 = -3.23
    10·1 answer
  • Use the discriminant to determine the kinds of numbers that satisfy the equation 5x = x² - 3. Do not solve.
    11·1 answer
  • 40 PTS HHHHHHHHHHHHHHHHEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPSelect all the true statements.
    6·1 answer
  • 4 ( − )−62−32( 22− )+2( − )<br><br> please help
    11·1 answer
  • Question: What Is The Average Time Spent Per Outsourced Project, Across All Regions For All Of The Projects? Bentrim Outsourcing
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!