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
malfutka [58]
2 years ago
8

Can someone help please

Mathematics
1 answer:
Elena L [17]2 years ago
4 0

9514 1404 393

Answer:

  4.  n = 4

  5.  P(A|B) = 0.75

Step-by-step explanation:

4. The coefficient of x will depend on n. The expansion is ...

  (5 +nx)^2(1 +3/5x)^n = (25 +10nx +n^2·x^2)(1 +3/5nx +...)

So, the x-term of the expansion is ...

  25(3/5nx) +(10nx)(1) = 25nx

The problem statement tells us that is 100x, so we have ...

  25nx = 100x

  n = 100x/(25x) = 4 . . . . . divide by the coefficient of n

The value of n is 4.

__

5. For the conditional probability formula, we need to know P(A∩B).

  P(A∩B) = P(A) +P(B) -P(A∪B)

  P(A∩B) = 0.5 +0.4 -0.6 = 0.3

Then the conditional probability is ...

  P(A|B) = P(A∩B)/P(B) = 0.3/0.4

  P(A|B) = 0.75

You might be interested in
Integer problems that equal 36
klio [65]
What integer is less than 37 but greater than 35?
5 0
3 years ago
Which point is an x interception of the quadratic function f(x)=(x-8)(x+9)
viva [34]

f(x)=(x-x_1)(x-x_2)\\\\(x_1,\ 0),\ (x_2,\ 0)-x\ interceptions

\text{We have}\ f(x)=(x-8)(x+9)=(x-8)(x-(-9))\\\\\text{therefore your answer is:}\\\\(8,\ 0),\ (-9,\ 0)

6 0
3 years ago
Read 2 more answers
Are Figures A and B congruent? Explain your reasoning.<br> Figure A<br> Figure B<br> HELP MA FRIENDS
Lisa [10]

Answer:

no

Step-by-step explanation:

because figure a takes up about 4 squares while figure b takes up about 8 squares

3 0
3 years ago
How much more money does it cost to burn trash than to send it to a landfill? Sanitation Costs (per pound) Recycling $30 Landfil
netineya [11]
What does that mean DJDJSJSJS Jen
3 0
3 years ago
10x = 2x -8 what is this answer
julia-pushkina [17]

Answer:

x=-1

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • 3r+2&lt;5 or 7r-10&gt;60 please help me with this problem I have been stumped for awhile
    9·1 answer
  • Which expression is equivalent to sqrt10/4sqrt8
    7·2 answers
  • If the graphs of the equations in a system of linear equations coincide with each other, what does that tell you about the solut
    5·1 answer
  • What is the equation of the directrix of the parabola given by the equation (y − 3)2 = 8(x − 5)?
    15·1 answer
  • Will give brainliest!
    7·2 answers
  • What would be the best description of the John’s times rounded to quarter hours (15 minutes)
    15·1 answer
  • What is the equation of a circle whose center is begin ordered pair negative 4 comma 6 end ordered pair and whose radius is 9 cm
    9·1 answer
  • (WILL GIVE BRAINLIEST)​
    11·1 answer
  • Pls show work! questions on pic
    7·1 answer
  • A dog weighs 2 pounds less than 3 times the weight of a cat. The dog weighs twenty two more pounds than the cat
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!