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
Vikki [24]
3 years ago
12

What is the answer and formula for 7f+5=68

Mathematics
1 answer:
gladu [14]3 years ago
4 0
7f=68-5
7f=63
f=63/7
f=9
You might be interested in
In a fruitsurvey 30 children choose their favorite fruit out of apples bananas and watermelon 10% shows up 30% shows bananas how
BlackZzzverrR [31]

Answer: 40%

Step-by-step explanation:

3 0
3 years ago
Write the given differential equation in the form L(y) = g(x), where L is a linear differential operator with constant coefficie
melamori03 [73]

Answer:

The complete solution is

\therefore y= Ae^{3x}+Be^{-\frac13 x}-\frac43

Step-by-step explanation:

Given differential equation is

3y"- 8y' - 3y =4

The trial solution is

y = e^{mx}

Differentiating with respect to x

y'= me^{mx}

Again differentiating with respect to x

y''= m ^2 e^{mx}

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

3m^2e^{mx}-8m e^{mx}- 3e^{mx}=0

\Rightarrow 3m^2-8m-3=0

The auxiliary equation is

3m^2-8m-3=0

\Rightarrow 3m^2 -9m+m-3m=0

\Rightarrow 3m(m-3)+1(m-3)=0

\Rightarrow (3m+1)(m-3)=0

\Rightarrow m = 3, -\frac13

The complementary function is

y= Ae^{3x}+Be^{-\frac13 x}

y''= D², y' = D

The given differential equation is

(3D²-8D-3D)y =4

⇒(3D+1)(D-3)y =4

Since the linear operation is

L(D) ≡ (3D+1)(D-3)    

For particular integral

y_p=\frac 1{(3D+1)(D-3)} .4

    =4.\frac 1{(3D+1)(D-3)} .e^{0.x}    [since e^{0.x}=1]

   =4\frac{1}{(3.0+1)(0-3)}      [ replace D by 0 , since L(0)≠0]

   =-\frac43

The complete solution is

y= C.F+P.I

\therefore y= Ae^{3x}+Be^{-\frac13 x}-\frac43

4 0
3 years ago
The table below shows 6 students' overall averages and their averages
vivado [14]

Answer:

yysududufududydhxududurfuuru

udududurudud

3 0
2 years ago
Read 2 more answers
Can someone explain Scientific Notations? I don't understand them...
wlad13 [49]

Answer:

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form.The primary reason for converting numbers into scientific notation is to make calculations with unusually large or small numbers less cumbersome.

Step-by-step explanation:

7 0
2 years ago
the sum of three number is 202, the second is three more than the first number, the third number is three times the second numbe
sertanlavr [38]

Answer:

x = 38

y = 41

z = 123

Step-by-step explanation:

x + y + z = =202

y = x + 3

z = 3y = 3(x + 3) = 3x + 9

<u>x</u> + <u>y</u> + <u>z</u> = <u>x</u> + <u>x + 3</u> + <u>3x + 9</u> = 5x + 12 = 202

5x + 12 = 202

5x = 190

x = 38

y = x + 3 = 41

z = 3y = 123

4 0
3 years ago
Other questions:
  • For what value of x is line a parallel to line b?<br><br> Enter your answer in the box.<br> x =
    13·2 answers
  • Your boss is impressed with your work and gives you a 3% raise.if the inflation rate is 3% you are
    7·2 answers
  • Imagine you saved $4000 to spend winter break visiting your relatives in New York. It costs $1200 for the plane ticket and $300
    9·1 answer
  • Can you construct a triangle that has side lengths 1 cm, 15 cm, and 15 cm?<br> yes or no ?
    10·2 answers
  • Plant and animal cells have ALL the same organelles. True or faulse?
    6·2 answers
  • What scale factor was used in dilation
    11·1 answer
  • The ratio of boys to girls in a group is 5:1. If there are 60 more boys than girls, work out how many people there are in total
    5·1 answer
  • What is the expected price of a calculator in the year 2000 if it costs $13 in 2015
    12·1 answer
  • Which scenarios can be represented by a ratio of 4 : 5 ?
    14·2 answers
  • A population of bees is decreasing. The population in a particular region this year is 1250. After year 1, it is estimated that
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!