# Posts by Stacy

Total # Posts: 609

MATH MODELS
300 hundred people apply for three jobs. 120 of the applicants are women. (a) If three persons are selected at random, what is the probability that two are women? (B)If three persons are selected at random, what is the probability that one is a woman? (c) If three persons are ...

Thanks, that's what I thought

if a class has 30 students and the average grade on a 100 point exam is 72% and the median is 74% how many students got above 90

English
Before class project on workplace diversity was due, the class submitted its their it his or her

Vectors
prove the vector projection of -v on v is -v using the vector projection formula.

Biology
number of water molecules produced when 14 amino acids are join to form a polypeptide bond?

Math 115
While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the building itself to collect, ...

General
What is the right of way profession? What do you do and what is its purpose?

Physics
what is the distance that a satellite must be from Earths surface if it's period of rotation is 1 day? I really not sure where to even start..

Math
24(2/3) = 16 unless its a baker dozen...

Chemistiy
Sb forms more than one type of ion. List two possible ions this atom forms and explain why they occur. Would it have to do something how in its electron configuration it ends of with 5p^3 meaning it is half full and half empty? Help me out please i am studying for my exams.

math
Find the least common multiple (LCM) of 3 and 5 which is?

Math
Correct!

math
Look up how to multiply with decimals. It is quite like normal multiplication. The Answer is 26.4.

Math
5*5 = 25 20*5 = 100 so D. 25/100 5/5 = 1 20/5 = 4 so A.1/4 (Right)

Math
18 ft * .25 in/ft = 4.5 in 16 ft * .25 in/ft = 4 in

math
A nice thing to know is ur times table. But... 12*1-12 *2=24 *3=36 *4-48 then (48*3) = 144 144/4 = 36 that is one way to do it mentally if you are also no good at fractions! hope it helps :)

Chemistiy
so without Ka one wouldn't be able to find out the order?

Chemistiy
Arrange these acids from weakest to strongest: HClO2, HCN, HF, HCl Ik the order is : HCN < HF < HClO2 < HCl but how exactly does one come to that conclusion with no necessary given information (Ka values?). Is there a way to memorize? or a trick? to know what acid is ...

Math
Sorry got the people mixed up!

Math
1. 44:6 #of adults : # of children. it just uses the values from the question!

Chemistiy
So considering stoichiometry does that mean that ammonium chloride is being produced at a equal (0.72 mol/s) rate as it is being consumed

Chemistiy
For the reaction: Ba(OH)2 (s) + 2 NH4Cl (s) ? BaCl2 (s) + 2 H2O (l) + NH3 (g) If ammonia gas (NH3) is produced at the rate of 0.72 mol/s, what is the corresponding rate of consumption of ammonium chloride? ANS: NH4Cl is consumed at a rate of 1.4 mol/s, twice as quickly as NH3 ...

Chemistiy
based on standard reduction potentials which metals would i) inhibit rusting ii)promote rusting My general statement is: > If the reduction potential is higher it will inhibits rusting and if it is lower it will promote rusting But im not sure because it doesn't make ...

physics
assuming the target is horizontal from the gun. distance bullet falls: h=1/2 g t^2 where the time is from t=46/460 seconds h=1/2 (9.8)(46/460)^2

Chemistiy
How does the presence of impurities such as copper affect the rusting of a piece of sheet metal of iron?

English
Does Hamlet reach enlightenment? I personally think not because he is still unaware that he has become exactly like Claudius and dispute saying things that virtuous and just he is hypocritical in his actions. Also follow up question: What did Hamlet die thinking (like of ...

Math
or your make them have all the same denominator both ways are equally as correct.

Algebra 1
I agree with both!

Engli
Thanks that's really good! gives me a lot to think and read about.

Physics
Can someone please tell me how to derive this: its supposed to be projectile motion with spring x = Sqrt (dx*g*1/2*m) +(mgh sin2theta) ---------------------------- (1/2)(k)(sin2theta) all i got is r =v^2sin2theta / g x is displacement of elastic plz help

Physics
Can someone please tell me how to derive this: its supposed to be projectile motion with spring x = Sqrt (dx*g*1/2*m) +(mgh sin2theta) ---------------------------- (1/2)(k)(sin2theta) all i got is r =v^2sin2theta / g x is displacement of elastic plz help

English
yes i have. the only thing is they mention evolution but they dont elaborate on it rather they are summarizing the book. But thank you! if you come across anything else please let me know.

English
If you haven't read the book is it possible you can post links to where i can find some information. Google hasn't really helped me so far.

English
How does Day of the Triffids display evolution? i am having a hard time coming up with a thesis for Day of the Triffids to display evolution compared to Orxy and Crake... For Orxy and crake i know evolution is a distinct theam but i am experiencing difficulty finding this ...

Biology
The anticodon for GCG is: A) AUA B) CCT C) UAU D) CGC **D

Math
My son has the numbers 1-12. In a square all sides must add up to 25. Each number can only be used once apart from the corners as they will be used twice to form the square pleaseee hellpppp

Algebra
if 15's student said in a survey that pizza was their favorite food how many students are in the entire class if it was 3/5 of the class?

Math
only straight line segments

math
d/15 - d/20 = 8/60 4 d - 3 d = 8 d = 8 ===================== then Amy takes (8/20)*60 =24 min and Ashley takes (8/15)*60 =32min Indeed difference of 8 min

Chemistiy
Check if im right please. a. oxidation occurs at my anode ____ ** Voltaic Cell b. You can use standard reduction potential table to calculate how much voltage it takes to operate me____ **Both voltaic cell and electrolytic cell

math Venn diagram
In a small school of 100 students 70 like red, 50 like blue and 10 like yellow. If told that the 10 students who selected yellow do not like red or blue. How many students like red and blue?

Math
for a cub scout meeting, the leader bought 4 pizzas, and 1 1/2 of the pizzas contained pepperoni. the scouts ate 5/6 of the pizzas that contained pepperoni. the remaining pizza that contains pepperoni represents what fraction of the 4 pizzas that the leader bought?

Physics
How long will it take a motor with an output power of 4000 W to lift a 250 kg container vertically upwards 25 m? how would u do the calculation?

Conceptual Physics
lol! thank! i was thinking i was missing something! :P

Conceptual Physics
While driving down an icy road in his pickup truck, Dan slid off the road into a ditch. He and his two friends each exerted a force of 200 N on the truck for two minutes, but failed to move it. The work done by the three friends on the truck was? the answer is 3.0m/s but isn&#...

Chem
Suppose 0.1 mL of 1.0 M HNO3 is added to water with a pH of 7. Use your answer above to predict the pH

psy
4.  In the _______ theory of motivation, _______ motivation is to satisfaction provided by activities that are their own reward as _______ motivation is to satisfaction derived from the reward for some kind of behavior, such as money or status.     &...

pys
3. In the research conducted by Hans Eysenck, factor analysis was used to identify ________ basic personality dimensions. Of these, the tendency to distort reality was labeled:       A. three; extraversion B. five; neuroticism. C. three...

psy
2.   Which of the following statements regarding the outcomes of Mary Ainsworth's strange situation experiments is most accurate?       A. Ambivalent children may both hit and embrace their mother on her return. B. ...

math
The number of pounds of apples a cannery can process and the processing cost are P(h) = 375h and C(n) = 0.35n + 1000 where P(h) is the number of pounds of apples that can be processed in h hours and C(n) is the cost of processing n pounds of apples. Use composition of ...

Statistics
Let's say that your average monthly charge is normally distributed with a mean of \$500 and a standard deviation of \$100. The credit card company will call anytime your purchases for the month exceed the 99th percentile. What is the dollar amount beyond which you will get a...

Chem
dissociation NaCH3COO*3H2O

math
The perimeter of a rectangular garden is 46. The length is 7 less than 4 times the width. What are the dimensions of the garden?

Math
Sorry it's h(t)=7.8+3.5sin((pi/6(t-3))

Math
For a certain day,the depth of water,h, in metres in PEI, in hours is given by the formula:h(t) = 7.8sin (pi/6(t-3)), t E [0,24], assume t=0 represents midnight. Provide an algebraic solution to determine the time(s) of day, the water reaches the depth of 10.29 m( give your ...

math
the productivity of a person is modelled by the function y=5cos(pi/2 t)+5, where t is in hours and t>and equal to 0. if the person starts work at 8:00am and works for 12 hours determine at what times they are least productive.assume that t=0 represents 8:00am.

math
Given that 0 ≤ 𝑥 ≤ 𝜋/2and 0 ≤ 𝑦 ≤𝜋/2 find the exact value of 𝑡𝑎𝑛(𝑥 + 𝑦) if 𝑐𝑜𝑡(𝑥) =6/5 and 𝑠𝑒𝑐(𝑦) =3/2

Math
Thank you! And srry didn't see earliers

Math
Write an equation for a log functions base 2 whose graph has the following properties: vertical asymptote of x=-6 Domain of x<-6 Passing through (-8,3)

Math
Write an equation for a log functions base 2 whose graph has the following properties: vertical asymptote of x=-6 Domain of x<-6 Passing through (-8,3)

Math
equation log_b a = c. a) If 0 < a < 1 < b, what can you conclude about c? b) If a < 0 < 1 < b, what can you conclude about c? Please help !

Math
For what value of k will the following function have y-intercept of 5. log{base 3} (-5x +k^2)-1

science
a rock is thrown 1.8 meters into the air. find how fast it was thrown?

Physics
A stone is dropped from a tower 100 meters above the ground. The stone falls past ground level and into a well. It hits the water at the bottom of the well 5.00 seconds after being dropped from the tower. Calculate the depth of the well. Given: g = -9.81 meters/second2.

Chemistry lab
A 1.340gram sample of an unknown acid, H3A, was placed in a 250.0 mL volumetric flask and diluted to volume with water. A 45.35 mL sample of this acid solution was titrated with 37.77 mL of a 0.1006M NaOH solution. A) Using one set - up dimensional analysis B) Calculate the ...

Chemistry
Write the oxidation half reaction for Magnesium metal and write the reduction half equation for Cu^2+ ions? I don't understand, please give me a simple explanation.

grammar
whats the prefix of bayou

A small company manufactures a total of x products per week. The production cost is modelled by the function y=50 + 3x. The revenue is given by the function 6x - x^2/100. How many items per week should be manufactured to maximize the profit for the company? Please help! The ...

Math
I have 60 questions to answer and 70% is passing I got 20 wrong did I pass

Probability
A box contains 3 blue, 5 red, 4 white marbles. If one marble drawn at random: find probability of blue given not white. Find probability of not red given not white

Help with College Stat class
c) There is a correlation between students’ levels of anxiety and the number of days they are absent from school (r = 0.53, p = 0.31). Interpret if this result was statistically significant and explain why or why not.

Statistics
c) There is a correlation between students’ levels of anxiety and the number of days they are absent from school (r = 0.53, p = 0.31). Interpret if this result was statistically significant and explain why or why not. My answer is this: The analysis gives us a correlation...

Algebra 1
A math test is worth 100 points and has 38 problems. Each problem is worth either 5 or 2 points. How many problems of each point value are on the test?

Math Help
Directions: Using the value given in the following problem, find what the slope of the graph for this function would be. f(x)=2x^2+5x-7/x^2 when x=-4

Maths
5+5+10

Maths
what is 20 times 5 divided by 9

Art
Figures Viewing Lake by Peter Fabris and Williams Hamilton

Art
Figure Viewing Lakeby Peter and Williams Hamilton

SS
How did the Protestant Reformation in Europe influence the settlement of North America? European settlers of different religions chose to establish new colonies in order to spread their faith and practice their beliefs. Religious thinker John Calvin was a prominent explorer in...

SS
What is the basis for the the economic theory of mercantilism that drove the exploration and settlement of North America by Europeans? Mercantilism is rooted in the idea that a nation’s power stems from the authority of an absolute monarch. Mercantilism is based on the ...

SS
Which area was known as the Gold Coast because of its abundance of gold? Cape of Good Hope coast of West Africa** Portugal Mediterranean coast

SS
Its C

SS
The Protestant Reformation was a new government. a study of scientific ideas. a religious and historical movement. an idea of the Catholic Church.

PE
Which side of the health triangle corresponds to getting enough rest? physical health social health mental and emotional health**** none of the above

PE
Lifestyle choices and health awareness affect your position on the health continuum. wellness scale. risk factor chart**. rating.

PE
You discover a red bump on your leg that itches. You decide to research the symptoms. While researching, you discover contradictory information. What is the best next step? Assume the bump is life threatening and call the doctor.*** Implement the solution from the first source...

algebra
find three consecutive integers whose product is 33 larger than the cube of the smallest integer

math
58

math
An angle of 60 radians can be converted to BLANK an angle of degrees. (Give an exact answer as a fraction, not a decimal approximation.)

history
the war powers resolution is possibly unconstituional because of what

Language Arts
dead asf at this thread lmao . Its true, connexus has switched 1-6 up for different people, which is why we cannot tell which is right, but i think it would help if they posted the questions and the answers.

math
please help with in a day jamal spent 1 2/3 hours watching television 1 4/5 hours taking an afternoon nap, and 7/8 hour helping his mother with housework how much time did Jamal spend on watching television and helping with housework do I have to change this into minutes? I ...

sentences and spelling
Which one of the following words has the suffix -ing added correctly? A. Talking B. Hopeing C. Stoping D. Findding

math
a cubic container was completely filled with water. when 3/4 of the water from the container was poured into a rectangular tank, the tank became 1/4 full. the capacity of the tank is 1.024 liters more than that of the cubic container. Find the length of the cubic container

help History Ms.sue
OR trail what is it about HELP

chemistry
Propane fuel is used in BBQs. Use the following reaction to determine how many moles of oxygen gas are needed to react with 1.6 moles of propane gas. C3H8(g)+5O2(g) --------> 4H2O(g)+ 3CO2(g)

broward
Calculate the molarity of 5.8 L of NaCl solution that contains 65 g of NaCl

Help- English
No juice is definitely wrong, 10/18. Geez.

math
when asked how many pennies she had a collector said If I arrange them in stacks of five, none are leftover if I arrange them in stacks of six, none are leftover if I arrange them in stacks of seven one is left over. What is the least number of coins she could have

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