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
Allushta [10]
2 years ago
11

1/3 + a = 5/4 A=? ..........................................................

Mathematics
1 answer:
NARA [144]2 years ago
3 0
11/12 I’m pretty sure
You might be interested in
3. What is the solution set of the equation 3x + 5) = x + 2?
Simora [160]
The solution set of 3x+5=x+2 is x=-1. This is because you want to get the variables on one side and the numbers on the other. you subtract x on both sides and subtract 5 on both sides. your equation then becomes 3x=-3. you then divide 3 on both sides and you get your answer of x=-1.
3 0
3 years ago
Consider the initial value problem y′+2y=4t,y(0)=8.
Xelga [282]

Answer:

Please read the complete procedure below:

Step-by-step explanation:

You have the following initial value problem:

y'+2y=4t\\\\y(0)=8

a) The algebraic equation obtain by using the Laplace transform is:

L[y']+2L[y]=4L[t]\\\\L[y']=sY(s)-y(0)\ \ \ \ (1)\\\\L[t]=\frac{1}{s^2}\ \ \ \ \ (2)\\\\

next, you replace (1) and (2):

sY(s)-y(0)+2Y(s)=\frac{4}{s^2}\\\\sY(s)+2Y(s)-8=\frac{4}{s^2}  (this is the algebraic equation)

b)

sY(s)+2Y(s)-8=\frac{4}{s^2}\\\\Y(s)[s+2]=\frac{4}{s^2}+8\\\\Y(s)=\frac{4+8s^2}{s^2(s+2)} (this is the solution for Y(s))

c)

y(t)=L^{-1}Y(s)=L^{-1}[\frac{4}{s^2(s+2)}+\frac{8}{s+2}]\\\\=L^{-1}[\frac{4}{s^2(s+2)}]+L^{-1}[\frac{8}{s+2}]\\\\=L^{-1}[\frac{4}{s^2(s+2)}]+8e^{-2t}

To find the inverse Laplace transform of the first term you use partial fractions:

\frac{4}{s^2(s+2)}=\frac{-s+2}{s^2}+\frac{1}{s+2}\\\\=(\frac{-1}{s}+\frac{2}{s^2})+\frac{1}{s+2}

Thus, you have:

y(t)=L^{-1}[\frac{4}{s^2(s+2)}]+8e^{-2t}\\\\y(t)=L^{-1}[\frac{-1}{s}+\frac{2}{s^2}]+L^{-1}[\frac{1}{s+2}]+8e^{-2t}\\\\y(t)=-1+2t+e^{-2t}+8e^{-2t}=-1+2t+9e^{-2t}  

(this is the solution to the differential equation)

5 0
3 years ago
PLEASE HELP ME I BEG OF YOU I can't do it :(
frozen [14]

Answer:

B C D F

Step-by-step explanation:

well first 4(3+x) simplified would be 12+4x and that is C so thats why C is an answer than it would b

7 0
3 years ago
Ms sling deposited 850 in a savings account that paid 4.25% simple interest. What was the balance in her account at the end of 2
andrezito [222]
777.75

after 2 years. Because 4.25 is equal to .0425 then times that by the number.
5 0
2 years ago
Delta bought a new iPhone XS that was discounted so that she got 22% off the original price. This resulted in a $149.60 discount
Mumz [18]

Answer: 159.5

Step-by-step explanation:

If 22% if is 9.90 you add 149.60+ 9.90 and you get 159.5. I'm sorry if this is wrong, I tried

5 0
2 years ago
Read 2 more answers
Other questions:
  • Write the slope and y intercept of each equation:
    12·1 answer
  • George weighed 170 lbs when he started college. If he gains just 0.25 lbs after each month for 4 years of college, how much will
    12·1 answer
  • Which is a rational number?
    9·2 answers
  • -7(-2x - 3) = 35<br>x=?<br><br>-8(4x + 3) = 40<br>x=?<br><br>2(8 - 5x) = -44<br>x=?
    12·1 answer
  • Corrine wants to purchase 9.6 pounds of trail mix. Each pound costs $1.20. How much will Corrine spend on trail mix?
    5·2 answers
  • HELP HELP PLEASEEEEE CORRECTLYYYYT
    10·1 answer
  • .The conversion of square feet to square yards can be represented by direct variation. Three square yards are equivalent to 27 s
    8·1 answer
  • Ace gained $ 176 by selling 32 meters cloth for $1496. Find his loss per meters she sold it for $1276​
    11·1 answer
  • Im really clueless please help! no links please :(
    14·2 answers
  • Solve the inequality for 3y+1 is less than -11 . Simplify your answer as much as possible.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!