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
Sever21 [200]
3 years ago
8

URGENT: Can someone help me solve these problems?

Mathematics
1 answer:
katrin2010 [14]3 years ago
3 0

Answer:

12

Step-by-step explanation:

21=31

31=7+2-3+0=12

This is correct because linear equations mean add subtract divide and multiply instead of finding roots and squares

You might be interested in
On a test, Marcus answered 12 out of the first 15 problems correctly. If this rate continues
Deffense [45]

Answer:

20

Step-by-step explanation:

6 0
2 years ago
The amount of money,y, in cash box after x tickets are purchased for carnival games. The slope of the line is 1/4 and the y-inte
victus00 [196]

Amount of money received when x tickets are sold=$Y

Number of tickets sold=X

Slope of line= \frac{1}{4}

And , y- intercept = 8

Equation of line having slope m and y-intercept c is given by,

  y = m x + c,

Expressing the above statement in terms of linear equation in two variable i.e a line is

  Y = \frac{1}{4}X + 8

5 0
3 years ago
Solve for x.<br> 40 = 8(x - 10)
Aleksandr [31]

Answer:

x = 15

Step-by-step explanation:

hope this helps, have a great day/night!!

5 0
3 years ago
Read 2 more answers
Which relationship is a function?
expeople1 [14]

The first graph with the month in numbers because the X value which is the month never appears again while the other appears again or attached to-other y value

3 0
3 years ago
Read 2 more answers
Consider the differential equation x2y′′ − 9xy′ + 24y = 0; x4, x6, (0, [infinity]). Verify that the given functions form a funda
pantera1 [17]

Answer:

The functions satisfy the differential equation and linearly independent since W(x)≠0

Therefore the general solution is

y= c_1x^4+c_2x^6

Step-by-step explanation:

Given equation is

x^2y'' - 9xy+24y=0

This Euler Cauchy type differential equation.

So, we can let

y=x^m

Differentiate with respect to x

y'= mx^{m-1}

Again differentiate with respect to x

y''= m(m-1)x^{m-2}

Putting the value of y, y' and y'' in the differential equation

x^2m(m-1) x^{m-2} - 9 x m x^{m-1}+24x^m=0

\Rightarrow m(m-1)x^m-9mx^m+24x^m=0

\Rightarrow m^2-m-9m+24=0

⇒m²-10m +24=0

⇒m²-6m -4m+24=0

⇒m(m-6)-4(m-6)=0

⇒(m-6)(m-4)=0

⇒m = 6,4

Therefore the auxiliary equation has two distinct and unequal root.

The general solution of this equation is

y_1(x)=x^4

and

y_2(x)=x^6

First we compute the Wronskian

W(x)= \left|\begin{array}{cc}y_1(x)&y_2(x)\\y'_1(x)&y'_2(x)\end{array}\right|

         = \left|\begin{array}{cc}x^4&x^6\\4x^3&6x^5\end{array}\right|

         =x⁴×6x⁵- x⁶×4x³    

        =6x⁹-4x⁹

        =2x⁹

       ≠0

The functions satisfy the differential equation and linearly independent since W(x)≠0

Therefore the general solution is

y= c_1x^4+c_2x^6

5 0
3 years ago
Other questions:
  • Which expression represents the product of 83 and x
    7·2 answers
  • Solve for x<br><br> 3x - 4 = 2x - 10<br><br> x = 14<br> x = 6<br> x = -6<br> x = -14
    9·2 answers
  • Solve for x<br> 30x=(60)(ЧО)
    9·1 answer
  • 7 times (3xsquared - 2x + 7)
    11·1 answer
  • Alice tossed a coin 100 times. In this experiment she recorded 53 heads and 47 tails. She
    6·1 answer
  • Please help me I need it ASAP
    12·1 answer
  • How do I simplify? x2 – 4 divided by x2 + 5x + 6. When working with Functions
    5·1 answer
  • 3^4/3^2<br> 8 grade mathematics edulastic
    5·2 answers
  • [AB] is a diameter of center C(O, 3cm). M is a point on (C) such that MA=MB. D is the symmetric of A with respect to M.
    14·1 answer
  • Pick the correct answer. <br> Help me please thanks so much
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!