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
scZoUnD [109]
3 years ago
12

Help with solving simulatenous equations with 1 quadratic . question attached

Mathematics
2 answers:
yuradex [85]3 years ago
7 0

Answer:

x = 1/2, y = 17/2

x = -3, y = 12

Tems11 [23]3 years ago
4 0

Answer:

x= -3, y=12

x=1/2, y=8 1/2

Step-by-step explanation:

y = 9-x

y= 2x²+4x+6

  • 9-x= 2x²+4x+6
  • 2x²+5x-3=0

solving, we get

  • x= -3 and x= 1/2

then

  • for x= -3, y= 9+3= 12
  • for x=1/2, y= 9-1/2= 8 1/2
You might be interested in
Use the substitution method to solve the system of equations. Choose the correct ordered pair. 3x – y = 7 2x – 2y = 2
quester [9]
Y=2, and x=3 so it is c
5 0
3 years ago
Read 2 more answers
Hello help please and thanks
galben [10]

Answer:

48.

Step-by-step explanation:

33 + 15 = 48.

You can check your answer by subtracting 48-15, which gives you 33.

8 0
2 years ago
Read 2 more answers
X+3=12 solve for x. x =
NeX [460]

Answer:

X is 9

Step-by-step explanation:

9 + 3 = 12

3 0
4 years ago
Suppose that the length of a phone call in minutes is an exponential random variable with parameter λ = 1/ 8. If someone arrives
Elis [28]

Answer:

a) P=0.535

b) P=0.204

c) P=0.286

Step-by-step explanation:

The exponential distribution is expressed as

F(x>t)=e^{-\lambda t}

In this example, λ=1/8=0.125 min⁻¹.

a) The probability of having to wait more than 5 minutes

F(x>5)=e^{-0.125*5}=e^{-0.625}=0.535

b) The probability of having to wait between 10 and 20 minutes

F(1020)=e^{-0.125*10}-e^{-0.125*20}\\\\F(10

c) The exponential distribution is memory-less, so it is independent of past events.

If you have waited 5 minutes, the probability of waiting more than 15 minutes in total is the same as the probability of waiting 15-5=10 minutes.

F(x>15|t^*=5)=F(x>15)/F(x>5)=\frac{e^{-0.125*15}}{e^{-0.125*5}}=e^{-0.125*(15-5)}\\\\ F(x>15|t^*=5)=e^{-0.125*(10)}=F(x>10)=0.286

5 0
3 years ago
5x + y = 6 5x + 3y = -4 The y-coordinate of the solution to the system shown is _____. -5 -1 1
anzhelika [568]
5x +y = 6
5x + 3y = -4 
multiply top equation by -1 and bottom by 1
-5x -y = -6
5x+3y = -4
solve and get 
2y = -10
y = -10/2
y = -5 
answer is -5
8 0
3 years ago
Other questions:
  • Brad owns 3 surfboards and 2 wet suits. If he takes one surfboard and one wet suit to the beach, how many different combinations
    9·1 answer
  • Susan is attempting to construct a square table with each side length equaling three feet. To check her work, Susan measures the
    11·2 answers
  • Find the solution of this system of linear
    8·1 answer
  • Practice worksheet : relations and functions
    8·2 answers
  • Which of the following are equivalent forms of the equation y=-5/9x+2/3?
    12·1 answer
  • Find the inverse of the function f(x) = 4x-1
    14·2 answers
  • Please help with these linear equations
    15·1 answer
  • River otters drink about 5 times as much water as a bald eagle drinks in a day.
    11·1 answer
  • Is 94,286,721 divisible by 6?
    6·2 answers
  • Finn and Ellie sell oranges at a produce stand. Finn earns $5 for each crate of oranges he sells. At the end of the week, Ellie
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!