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
s344n2d4d5 [400]
3 years ago
10

12. Find S for the given arithmetic series. a = 18, d = –10, n = 12

Mathematics
1 answer:
Taya2010 [7]3 years ago
8 0


a=18 , d =?10,n,=12

I hope this is the answer


You might be interested in
What number is in the middle of 25 and 50?
Firdavs [7]
(50-25)/2
25/2
12.5
25+12.5=37.5
6 0
3 years ago
Read 2 more answers
Help meh plzzzzzzzz Quick
grin007 [14]

Answer:

51..................................................................................

Step-by-step explanation:

ggs bad anwser

3 0
2 years ago
Read 2 more answers
Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.
likoan [24]

Answer:

Cosine 24 = adjacent / hypotenuse (x)

0.91355  = 11 / hypotenuse

hypotenuse = 11 /  0.91355

hypotenuse (x) = 12.0409391933

or x = 12.04 (rounded)

Step-by-step explanation:

4 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
Suppose f(x) = x2 and g(x)= (1/4x)2 Which statement best compares the
Umnica [9.8K]

Answer:

B. The graph of g(x) is the graph of f(x) horizontally stretched by a factor of 4.

I just did it off of A.P.E.X

7 0
3 years ago
Other questions:
  • If 7 shirts cost $87.50 find the cost of 11 shirts
    5·2 answers
  • We have two fractions,
    15·1 answer
  • A rectangular folder has a perimeter of 30 inches and an area of 54 square inches. What are the dimensions of the folder?
    8·1 answer
  • David is buying a cheese wheel priced at \$650$650 before tax. The store charges 8\%8% sales tax. What is the total price, inclu
    5·2 answers
  • Find an equation of the circle that has center (1, -1) and passes through (5, -6).
    14·1 answer
  • HELP HELP HELP HELP, PLEASE QUICKLY
    10·1 answer
  • Maricow county charges a 4% local fee on all cell phone bills. If a customers bill comes out to 125 what will their bill be incl
    8·1 answer
  • I need help fast i will give out brinalist
    6·2 answers
  • What are the Factors of 40
    14·2 answers
  • Denise spent $3.45 on snacks every day for 11 days. What is the amount of money Denise spent on these snacks?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!