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
butalik [34]
2 years ago
9

PLEASE HELP!! NO LINKS PLS..

Mathematics
1 answer:
Lesechka [4]2 years ago
5 0

Answer:

I think its gonna be B

Step-by-step explanation:

You might be interested in
2. make sure you show all your work for full points. what is z?
LenKa [72]

Answer:

I don't understand what the means

7 0
2 years ago
Suppose that two teams play a series of games that ends when one of them has won ???? games. Also suppose that each game played
Musya8 [376]

Answer:

(a) E(X) = -2p² + 2p + 2; d²/dp² E(X) at p = 1/2 is less than 0

(b) 6p⁴ - 12p³ + 3p² + 3p + 3; d²/dp² E(X) at p = 1/2 is less than 0

Step-by-step explanation:

(a) when i = 2, the expected number of played games will be:

E(X) = 2[p² + (1-p)²] + 3[2p² (1-p) + 2p(1-p)²] = 2[p²+1-2p+p²] + 3[2p²-2p³+2p(1-2p+p²)] = 2[2p²-2p+1] + 3[2p² - 2p³+2p-4p²+2p³] =  4p²-4p+2-6p²+6p = -2p²+2p+2.

If p = 1/2, then:

d²/dp² E(X) = d/dp (-4p + 2) = -4 which is less than 0. Therefore, the E(X) is maximized.

(b) when i = 3;

E(X) = 3[p³ + (1-p)³] + 4[3p³(1-p) + 3p(1-p)³] + 5[6p³(1-p)² + 6p²(1-p)³]

Simplification and rearrangement lead to:

E(X) = 6p⁴-12p³+3p²+3p+3

if p = 1/2, then:

d²/dp² E(X) at p = 1/2 = d/dp (24p³-36p²+6p+3) = 72p²-72p+6 = 72(1/2)² - 72(1/2) +6 = 18 - 36 +8 = -10

Therefore, E(X) is maximized.

6 0
3 years ago
Which transformation could NOT be used to prove that two circles are congruent to one another?
EleoNora [17]

Answer: D

Step-by-step explanation:

6 0
2 years ago
How do you turn 12/15 and 68/80 into a decimal and into a percent
Allisa [31]
\frac{12}{15}\\\\divide\ a\ numerator\ and\ a\ denominator\ by\ 3\\\\12:3=4;\ 15:3=5\\\\therefore\ \frac{12}{15}=\frac{4}{5}\\\\multiply\ a\ numerator\ and\ a\ denominator\ by\ 2\\\\4\cdot\ 2=8;\ 5\cdot2=10\\\\therefore\ \frac{12}{15}=\frac{4}{5}=\frac{8}{10}=\boxed{0.8}\Rightarrow0.8\cdot100\%=\boxed{80\%}



\frac{68}{80}\\\\divide\ a\ numerator\ and\ a\ denominator\ by\ 4\\\\68:4=17;\ 80:4=20\\\\therefore\ \frac{68}{80}=\frac{17}{20}\\\\multiply\ a\ numerator\ and\ a\ denominator\ by\ 5\\\\17\cdot\ 5=85;\ 20\cdot5=100\\\\therefore\ \frac{68}{80}=\frac{17}{20}=\frac{85}{100}=\boxed{0.85}\Rightarrow0.85\cdot100\%=\boxed{85\%}
7 0
3 years ago
Read 2 more answers
What is 10 times as much as 60?
vfiekz [6]
10 time as much of something is basically just multiplication, so all you have do is multiply 60x10 which equals 600 :)
7 0
3 years ago
Read 2 more answers
Other questions:
  • HELP!!!!! Write the percent 47.33% as a decimal. *0.4733 *4.733 *47.33 *473.3
    10·2 answers
  • A variable force of 3x−2 pounds moves an object along a straight line when it is x feet from the origin. Calculate the work done
    7·1 answer
  • If all the edges of prism A are multiplied by 5 to create prism B. The volume of prism B will be __________ times the volume of
    5·1 answer
  • Charlie and noel picked 92 quarts of berries at the king orchard. if charlie picked 6 more quarts than noel picked. how many qua
    8·1 answer
  • Simplify (4x − 6) − (3x + 6).
    6·2 answers
  • Evaluate 3 - 24 + 8 + 42.<br> A.0<br> B.2<br> C.16<br> D.24
    13·2 answers
  • What occurs when thermal energy is moved from one place to another
    11·1 answer
  • Find the midpoint of points A(8,-7) and B(3,-1) graphically
    13·1 answer
  • Solve for y in the following equation.
    8·1 answer
  • State whether the following variables have a positive correlation, negative correlation, or no correlation.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!