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
natka813 [3]
4 years ago
13

Solve the system of equations. 14x + y = −4 y = 3x^2 − 11x − 4

Mathematics
1 answer:
sveta [45]4 years ago
4 0
You can use substitution here. First, get y alone:

14x + y = -4
subtract 14x from each side
y = -4 - 14x

Then, plug y into the second equation

-4 - 14x = 3x² - 11x - 4
 then solve from there

Hope this helps :)
You might be interested in
Denis made a scale drawing of his backyard, using the scale 1/4 inch = 3 feet. The rectangular swimming pool was 2 inches long a
Vlad [161]
24ft long, 12ft wide

2/.25=8  8x3=24
1/.25=4  4x3=12
3 0
3 years ago
Read 2 more answers
Find the equation of the line passing through (1,4) with a gradient of 3
tatiyna

I really don't know, this is to difficult

8 0
3 years ago
Use Laplace transform methods to solve the differential equation: The initial conditions are f(0) = 0 and <img src="https://tex.
Llana [10]

Answer:

Step-by-step explanation:

\frac{d^2 y}{dt^2} +12\frac{dy}{dt} +32y = 10e^{-2t} where f(x) is replaced by y

Take Laplace on both sides

s^2 Y -s(0)-0 +12s Y-0+32Y = \frac{10}{s+2} \\Y(s^2+12s+32) =  \frac{10}{s+2}\\Y =  \frac{10}{(s+2)(s+4)(s+8)}

We can resolve into partial fraction to get Y = L(y)

Let this equals

\frac{A}{s+2} +\frac{B}{s+4} +\frac{C}{s+8} \\10 = A(s+4)(s+8) + B(s+2)(s+8) +Cs+4)(s+2) \\

Solving we get

s=-9

24C = 10 or C =5/12

s=-2:  A=10/12=5/6

s=-4: B = -5/4

Taking inverse Laplace

y(t) = \frac{-5e^{-4t} }{4} + \frac{5e^{-8t} }{12} +\frac{-5e^{-2t} }{6}

6 0
3 years ago
If you understand, please put the answer!
il63 [147K]

Step-by-step explanation:

3-8 is diagnal 7-2 is also 7-2 is the answer

8 0
3 years ago
Please go to my profile and answer my last question
Alex Ar [27]

Answer:

ok

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Triangles ABC and DEF are similar triangles. What are the lengths of the unknown sides? Question 10 options: A) DE = 24 yd.; EF
    10·1 answer
  • Help me pls in question 7!!!
    7·1 answer
  • Is y = x an additive Relationship? Explain.
    10·1 answer
  • What is 12/35 simplified
    6·2 answers
  • Will make brainiest to the first two people that answer correctly
    11·1 answer
  • Express 18/10 to its simplest form<br>​
    11·2 answers
  • If p=7,q=5,r=3 find value of p2+q2-r2<br>​
    13·2 answers
  • Write an equation of a line that passes through (-3, 5) and (-7, 5).
    6·1 answer
  • If two events A and B are independent, and you know that P(A) =
    10·1 answer
  • Which equation represents the values shown in the table?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!