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
serg [7]
2 years ago
9

HELP ILL MARK YOU BRAINLIST

Mathematics
2 answers:
bekas [8.4K]2 years ago
4 0

Answer:

-\frac{3}{2}

Amanda [17]2 years ago
3 0
-3/2 is the answer dear
You might be interested in
What should be done to solve the following equation? (7.5)x = 45
Tema [17]
Divide each side by 7.5
4 0
3 years ago
Read 2 more answers
What is the equation of the line in slope-intercept form?
inessss [21]

Answer:

y = x - 9

Step-by-step explanation:

the line has a slope of 1 so you do not have to include it in the equation and it crosses the y-axis at -9 so the y-intercept is -9

7 0
2 years ago
Help pleasseeeeeeeeee 6. If Ai charges $3.25 per serving of ice cream, how much will she make if she sells it to 12
Ivenika [448]

Answer:

40.62

Step-by-step explanation:

that's the answer I got

6 0
2 years ago
PLEASE MAKE SURE HELP ME!
bulgar [2K]

Answer:

1. The first problem is wrong, it should be 0.5(3(15) + 2(20)) because the parentheses make sure that every purchased item is being divided by 2 (multiplying by 0.5 is the same as dividing by 2)

2. The second problem is partially correct. The first two answers you have checked are correct, but the last one is wrong. The third answer should be 6 + 12 instead because that's just a simplified version of 2(3) + 6(2), meaning they are equal

3. I cannot read your answers in the "Why or Why Not" column in the third problem, but the answers you gave in the "Evaluate" and "Does It Work?" columns are all correct.

7 0
3 years ago
Determine whether the equation is exact. If it​ is, then solve it. e Superscript t Baseline (7 y minus 3 t )dt plus (2 plus 7 e
umka21 [38]

Answer:

F(t,y)=(2+7e^t)y+3(1-t)e^t +C

Step-by-step explanation:

You have the following differential equation:

e^t(7y-3t)dt+(2+7e^t)dy=0

This equation can be written as:

Mdt+Ndy=0

where

M=e^t(7y-3t)\\\\N=(2+7e^t)

If the differential equation is exact, it is necessary the following:

\frac{\partial M}{\partial y}=\frac{\partial N}{\partial t}

Then, you evaluate the partial derivatives:

\frac{\partial M}{\partial y}=\frac{\partial}{\partial t}e^t(7y-3t)\\\\\frac{\partial M}{\partial t}=7e^t\\\\\frac{\partial N}{\partial t}=\frac{\partial}{\partial t}(2+7e^t)\\\\\frac{\partial N}{\partial t}=7e^t\\\\\frac{\partial M}{\partial t} = \frac{\partial N}{\partial t}

The partial derivatives are equal, then, the differential equation is exact.

In order to obtain the solution of the equation you first integrate M or N:

F(t,y)=\int N \partial y = (2 +7e^t)y+g(t)        (1)

Next, you derive the last equation respect to t:

\frac{\partial F(t,y)}{\partial t}=7ye^t+g'(t)

however, the last derivative must be equal to M. From there you can calculate g(t):

\frac{\partial F(t,y)}{\partial t}=M=(7y-3t)e^t=7ye^t+g'(t)\\\\g'(t)=-3te^t\\\\g(t)=-3\int te^tdt=-3[te^t-\int e^tdt]=-3[te^t-e^t]

Hence, by replacing g(t) in the expression (1) for F(t,y) you obtain:

F(t,y)=(2+7e^t)y+3(1-t)e^t +C

where C is the constant of integration

8 0
3 years ago
Other questions:
  • What is the surface area of a cylinder with a height of 20 meters and a diameter of 8 meters?
    15·1 answer
  • Explain how to subtract 247 from 538
    5·2 answers
  • Two friends share 7 cookies equally. How many cookies does each friend get?
    15·2 answers
  • Which is less expensive, riding every ride once or buying the one day pass?
    5·2 answers
  • You 495 miles from home and you are driving toward home at an average of 45mph. How long will it take to drive home if you maint
    7·2 answers
  • Please help ♡♡♡♡♡♡♡♡​
    5·2 answers
  • Use rounding to estimate the product.<br><br> 11.45 × 5
    13·2 answers
  • What is the length of the hypotenuse of the triangle?
    9·2 answers
  • Kevin is looking for a job as a piano technician. One classified ad lists a job that
    5·1 answer
  • 6. Find the average rate of change of Pete's height from 3 years
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!