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
yawa3891 [41]
3 years ago
6

Simplify the expression 12−17/−5−(−2).

Mathematics
1 answer:
OleMash [197]3 years ago
4 0

12-17/-5-(-2) so divison first,it will become 12+3.4-(-2) =two minuses will become a "+"

So,12+3.4+2=17,4

ANSWER: 17.4

You might be interested in
Use the method of undetermined coefficients to find the general solution to the de y′′−3y′ 2y=ex e2x e−x
djverab [1.8K]

I'll assume the ODE is

y'' - 3y' + 2y = e^x + e^{2x} + e^{-x}

Solve the homogeneous ODE,

y'' - 3y' + 2y = 0

The characteristic equation

r^2 - 3r + 2 = (r - 1) (r - 2) = 0

has roots at r=1 and r=2. Then the characteristic solution is

y = C_1 e^x + C_2 e^{2x}

For nonhomogeneous ODE (1),

y'' - 3y' + 2y = e^x

consider the ansatz particular solution

y = axe^x \implies y' = a(x+1) e^x \implies y'' = a(x+2) e^x

Substituting this into (1) gives

a(x+2) e^x - 3 a (x+1) e^x + 2ax e^x = e^x \implies a = -1

For the nonhomogeneous ODE (2),

y'' - 3y' + 2y = e^{2x}

take the ansatz

y = bxe^{2x} \implies y' = b(2x+1) e^{2x} \implies y'' = b(4x+4) e^{2x}

Substitute (2) into the ODE to get

b(4x+4) e^{2x} - 3b(2x+1)e^{2x} + 2bxe^{2x} = e^{2x} \implies b=1

Lastly, for the nonhomogeneous ODE (3)

y'' - 3y' + 2y = e^{-x}

take the ansatz

y = ce^{-x} \implies y' = -ce^{-x} \implies y'' = ce^{-x}

and solve for c.

ce^{-x} + 3ce^{-x} + 2ce^{-x} = e^{-x} \implies c = \dfrac16

Then the general solution to the ODE is

\boxed{y = C_1 e^x + C_2 e^{2x} - xe^x + xe^{2x} + \dfrac16 e^{-x}}

6 0
1 year ago
Consider the linear function that is represented by the equation y = 2 x + 2 and the linear function that is represented by the
Arisa [49]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which Function rule describes the pattern in the table? x:-2,-1,0,1,2 / y:14,11,8,5,2 A) y=3x+8 B) y= -3x-8 C) y=3x-8 D) y=-3x+8
Leona [35]
For every value tht x increases, y decreases by 3

-3x

Then to find the y intercept, look at 0's corresponding value (8)

-3x+8
6 0
3 years ago
Exactly 120 tickets were sold for a concert. The tickets cost $12 each for adults, $10 each for seniors, and $6 each for childre
Gemiola [76]
A=adult tickets
c=chlderenticekts
s=sinior tickets

a=c

a+c+s=120
2a+s=120

total made is 1100
12a+6c+10s=1100
sub
a=c
12a+6a+10s=1100
add
18a+10s=1100

multiply first equation by -9 and add to other equation

-18a-9s=-1080
18a+10s=1100 +
0a+s=20

s=20
20 senior tickets were sold

answer is B
5 0
3 years ago
Your family is traveling 345 miles to an amusement park. You have already traveled 131 miles. How many more miles must you trave
Svetllana [295]

Answer:

  214 miles

Step-by-step explanation:

To find the difference between miles already traveled and total miles you need to travel, you subtract ...

  345 miles - 131 miles = 214 miles

You must travel 214 more miles to complete your 345 mile journey.

7 0
3 years ago
Other questions:
  • Simplify the radical expression (3 + √6) (3 - √6)
    6·2 answers
  • PR and PS are tangent to center Q. Find the measurement of angle Q.
    13·2 answers
  • A refrigerator costs $850. The estimated yearly operating cost of the refrigerator is $62. Average annual cost = Purchase price
    10·2 answers
  • A hyperbola has vertices (5,0) and (-5,0). Its
    15·1 answer
  • Use the function f(x) = 2x3 - 3x2 + 7 to complete the exercises.<br> f(−1) = <br> f(1) = <br> f(2) =
    8·1 answer
  • HELP ILL BRAINLIST THE FIRST ONE TO ANSWER
    6·2 answers
  • Which equation represents a proportional relationship between x and y values
    15·1 answer
  • 2. Write an equation in siope-interceptform to represente relationship in the table ​
    14·1 answer
  • What are some examples from science and engineering where a quadratic is used but is not a function?
    8·1 answer
  • Alissa surveys a random sample of 50 students at her school about the country
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!