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
VladimirAG [237]
3 years ago
6

Does anybody know the answer to this question

Mathematics
1 answer:
stiv31 [10]3 years ago
8 0

Answer:

A

Step-by-step explanation:

You might be interested in
What is the standard form for the quadratic function?<br> g(x) = (x + 1)^2– 2
zloy xaker [14]

Answer: g(x)=x^2+x-1

Step-by-step explanation:

(x+1)^2-2

x^2+2*1*x+1^2-2\\x^2+2x+1-2\\x^2+x-1

3 0
3 years ago
Exercise 3.3.2: Verify that the system x® 0 1 3 3 1 x® has the two solutions 1 1 e 4t and 1 −1 e −2t a) . b) Write down the gene
nikklg [1K]

Answer:

The general solution of the system is

X(t)=A\left(\begin{array}{c}1 &-1 \end{array}\right)e^{-2t} + B\left(\begin{array}{c}1 &1 \end{array}\right)e^{4t}\\

Step-by-step explanation:

To verify that the system X^{'} =\left[\begin{array}{cc}1&3\\3&1\end{array}\right] X has the solutions given,

First, we determine the Eigen Values β of the matrix of the form X^{'} =A XUsing |A-βI|=0, where I is the Identity Matrix, we have:

|A-\beta I|=0

|\left(\begin{array}{cc}1&3\\3&1\end{array}\right )-\left(\begin{array}{cc}\beta &0\\0&\beta \end{array}\right )|=0

Subtracting matrices

\left|\begin{array}{cc}1-\beta &3\\3&1-\beta \end{array}\right |=0

Taking the determinant

(1-\beta)(1-\beta)-(3X3)=0\\1-\beta-\beta+\beta^{2}-9=0\\\beta^{2}-2\beta-8=0\\\beta^{2}-4\beta+2\beta-8=0\\\beta(\beta-4)+2(\beta-4)=0\\(\beta-4)((\beta+2)=0\\\beta=4  or -2

We determine the eigen vector using\left(\begin{array}{cc}1-\beta &3\\3&1-\beta \end{array}\right)\left(\begin{array}{c}c_{11} &c_{12} \end{array}\right)=0

When \beta = -2,

\left(\begin{array}{cc}3 &3\\3&3 \end{array}\right)\left(\begin{array}{c}c_{11} &c_{12} \end{array}\right)=0 which implies that 3c_{11}+3c_{12}=0 and thus  

If c_{11}=1, c_{12}=-1

When \beta = 4,

\left(\begin{array}{cc}-3 &3\\3&-3 \end{array}\right)\left(\begin{array}{c}c_{21} &c_{22} \end{array}\right)=0 which implies that 3c_{21}-3c_{22}=0 and thus  

If c_{21}=1, c_{22}=1

A general solution of the system is given as

X(t)=Ac_{1}e^{\beta _{1}} + Bc_{2}e^{\beta _{2}t where the c's are the eigen vectors.

Thus the general solution is

X(t)=A\left(\begin{array}{c}1 &-1 \end{array}\right)e^{-2t} + B\left(\begin{array}{c}1 &1 \end{array}\right)e^{4t}\\

7 0
3 years ago
Which expression is equivalent to 4.2a−2(0.4a−1.3)
Sati [7]

Answer:

the 3rd one

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Solve for p. &lt;---- PLEASE
Gelneren [198K]

Answer:

p = 8

Step-by-step explanation:

1) Divide both sides by 2.

p + 1 =  \frac{18}{2}

2) Simplify 18/2 to 9.

p + 1 = 9

3) Subtract 1 from both sides.

p = 9 - 1

4) Simplify 9 - 1 to 8.

p = 8

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>option</u><u> </u><u>A</u><u>.</u>

6 0
3 years ago
6
blsea [12.9K]

The answer is 6 x<=6 x<=12 (2 - x) - 7 x - 2 (simplified)

5 0
3 years ago
Other questions:
  • Find the area to this problem
    12·2 answers
  • If the diameter of the earth we're squared what would the diameter of the new planet be
    10·2 answers
  • Calculate the average rate of change of the given function over the given interval. Where appropriate, specify the units of meas
    5·1 answer
  • What kind of transformation is illustrated in this figure?
    10·1 answer
  • How do you solve this equation 26x=74
    6·2 answers
  • Write a real-world problem in which you would subtract fractions with unlike denominators. Then solve your problem.
    6·1 answer
  • The diver is on (-6, 3) on the coordinate plane
    10·1 answer
  • What is the standard form equivalent of this quadratic expression in factored form? (2x-3)(3x-4)​
    15·1 answer
  • 4x &lt; 8<br> And how to graph it?
    11·1 answer
  • SOMEONE HELP PLEASE AND THANK YOU TWO MORE AWNSER AWNSER HONESTLY PLEASE!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!