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
stellarik [79]
3 years ago
6

Please help me out please

Mathematics
1 answer:
vivado [14]3 years ago
4 0
Use the scientific calculator from desmos hope that helps
You might be interested in
8) A committee has fifteen members. There are two members that currently serve as the board’s chairman and vice chairman. Each m
pickupchik [31]

Answer:

The probability is    P(Z) = 0.0064

Step-by-step explanation:

From the question we are told that

  The number of members is  n = 15

Generally the number of ways of selecting two member from the fifteen members is mathematically represented as

       K  =  ^{n}C_2 *  2!

Here C stands for combination hence we will be making use of the combination functionality in our calculator

      K  =  ^{15}C_2 *  2 * 1

=>  K  =  78  *  2 * 1

=>  K  =  156

Gnerally the number of outcome that matches the outcome required by the committee(Which is  reselecting the member who where the chairman and vice chairman of the board ) is   m =  1

Generally the probability of randomly selecting the two members who currently hold the positions of chairman and vice chairman and assigning them to their current positions is mathematically represented as

      P(Z) =  \frac{m}{K}

=>    P(Z) =  \frac{1}{156}

=>    P(Z) =  \frac{1}{156}      

 =>    P(Z) = 0.0064      

5 0
3 years ago
Solve the following system of equations using Substitution, showing all work.
Elena L [17]

Answer:

(x,y)=(5,-1)

Step-by-step explanation:

1. 2x+y=9  ---> y=9-2x

2. Substitute y=9-2x into 3x-2y=17 ---> 3x-2(9-2x)=17 ---> 3x-18+4x=17 --> 7x=35 ---> x=5.

3. Substitute x=5 into 2x+y=9 ---> 2*5+y=9 ---> y=9-10 ---> y= -1

3 0
3 years ago
Write the following phrase<br> as an<br> inequality: 3 more than twice n is at most 50.
Margarita [4]

Step-by-step explanation:

3 more than twice n = 3+2n

3 more than twice n is atmost 50,

=> 3+2n <= 50 {(3+2n) is less than or equal to 50}

7 0
3 years ago
Read 2 more answers
100 POINTS! ANSWER NOW! I'm really slow so please explain this as thoroughly as possible.
Slav-nsk [51]

Step-by-step explanation:

a) The graph of a normal curve with a mean of 64" and a standard deviation of 3.5" is a bell-shaped curve with its

maximum value at x = 64.

Important points:

mean - 3 deviations: 64 - 3(3.5) = 64 - 10.5 = 53.5

mean - 2 deviations: 64 - 2(3.5) = 64 - 7 = 57

mean - 1 deviation: 64 - 3.5 = 60.5

mean: = 64

mean + 1 deviation: 64 + 3.5 = 67.5

mean + 2 deviations: 64 + 2(3.5) = 64 + 7 = 71

mean + 3 deviations: 64 + 3(3.5) = 64 + 10.5 = 74.5

b) If there are 3000 plants, approximately how many will be taller than 71"?

71" is 2 standard deviations above the mean. The region between two standard deviations below the mean and two standard deviations holds approximately 95% of the plants.

Therefore there will be approximately 5% of the plants divided equally between being taller than two standard

deviations above the mean and being shorter than two standard deviations below the mean. Thus, there will be

approximately 2.5% of the plants taller than 71": 0.025 x 3000 = 75 plants.

or

the z-score for 71

= (71-64)/35 = 2

going to your tables, or some other suitable source for standard deviation, we find

P(z < 2) = .9772

P(z > 2) = .0228

.0228(3000) = 68.4

or appr 68 plants

5 0
3 years ago
What is the ratio of 45 to 35
Mademuasel [1]
<span>35/45 = (7 x 5)/(9 x 5) = 7/9


</span>
8 0
4 years ago
Read 2 more answers
Other questions:
  • Erin washed the car 4 minutes slower than half of the amount of time it took time it took
    9·1 answer
  • Rafi had a board that was 15 and a half feet long he cut three pieces off the board that are each 3 and 7/8 foot long how much b
    15·1 answer
  • Please help me!!!!! PLeASe Also I will be giving Brailiest
    7·1 answer
  • A sea turtle made 460 dives in 12 hours.at this rate,how many dives did the sea turtle make in 3 hours
    7·1 answer
  • lora has $15 to spend on movie rentals for the week .each rental costs 3$ sketsh a graph to show how much money she might spend
    8·2 answers
  • HElP what There is a $20 shirt and it is 1/3% off
    7·2 answers
  • (Will give Brainliest, these are angle relationships) Please help, and show work, what relationship is it and set up an equation
    10·2 answers
  • 4. If g(x)= 3x-5 and h(x)= 2x–4 then (goh)(x)=?
    10·1 answer
  • How do i do thissssssssssssssssssssssss
    6·2 answers
  • Which ones show alternate interior angles
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!