Posts by Anonymous

Total # Posts: 116,408

biology
Why do biologists believe that a primitive choanoflagellate protist is an ancestor of all animals?

Biology
what are the changes that occur in the male and female reproductive systems during puberty?

Math/Algebra
Thank you!

Math/Algebra
I change my answer to A

Math/Algebra
A restaurant has one type of lemonade that has 12% sugar and another that is 7% sugar. How many gallons of each does the restaurant need to make 20 gallons of a lemonade mixture that is 10% sugar? a. 12 gallons of the 12% lemonade and 8 gallons of the 7% lemonade. b.10 gallons...

MATH
The sum of three consecutive even integers is 54. What is the smallest integer being added? A) 8 B) 10 C) 12 D) 16

Algebra
a chemist wants to mix a 22 acid solution with a 46% acid solution to get 32 gallons of 37% acid solution. How many gallons of the 22% acid solution and how many gallons of the 46% acid solution should be mixed?

Math
Find f(-10). f(x) = 7x - 5 A) -75 B) -65 C) 65 D) 90

Math
Thank you

Math
Find f(-10). f(x) = 7x - 5 A) -75 B) -65 C) 65 D) 90

MATH
It's D.

MATH
Jerry charges \$15 for each lawn that he cuts. His earnings vary from week to week. If he cuts at most 10 yards per week, his profit is represented by y = 15x - 10 because he allows \$10 for gas and oil for his equipment. What do the domain values represent on the graph? Which ...

Math
2/3 of a blueberry pie is left in the refrigerator if the leftover pie is cut into six equal slices which fraction of the original pie is in each slice

Math
Three zeroes of a fifth degree polynomial function are ?,4-6i, and -2+11i. Determine the remaining zeroes of the function.

Math
4. Describe the behavior of the graph at the x-intercepts for the function f(x) = (2x-7)^7 (x+3)^4. Be sure to identify each x-intercept and justify your answer.  How does each exponent change the look of the graph at the x-axis?

Chemistry
How many unpaired electrons are there in the following transition metal ions in their hexacyano-complex ions? Fe^3+, Pd^2+,CO^2+

physics
a package is released from a helicopter flying horizontally at a constant soeed of 40m/s. the oackage takes 3.0s to reacg the ground. the effects of air resistance can be ignored. what are the horizontal and vertical speeds of the package just before it hits the ground?

Chem help
Consider the following system, which is at equilibrium, CO(g) + 3 H2(g) <--------> CH4(g) + H2O(g). The result of removing some CH4(g) and H2O(g) from the system will be A. more CH4 is consumed to restore the equilibrium B. Kc decreases C. more H2O(g) is consumed to ...

Math
The distance from Greg’s house to Tom’s house is 3/8 of a mile. Which decimal represents this distance?

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
Ok, thank you Ms. Sue!

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
Ms.Sue I'm confused about how to get the band posters. So far I have gotten 120/80 = 96/____. I can't figure out the band posters

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
A collector has 120 movie posters and 80 band posters. She wants to sell 24 movie posters but still have her poster collection maintain the same ratio of 120:80. If she sells 24 movie posters, how many band posters should she sell? Complete the explanation to find out how many...

Chemistry
Using the Krevzi method construct histidine and pyridoxine(Vitamin B6).

math
A spinner with 9 equally side slices 1 white, 1 black, 7 grey, what are the odds in favor of landing on a grey?

Physics
Dahnay Travels On A Bus To School.He Gets On The Onthe Bus Which Then Accelerates From Rest To 18m/s In 20secnds.The Bus Travelr At This Velocity For 60seconds.Tge Bus Slows Down And Comesto Rest In 15seconds.Itis Stationary For 30seconds While People Get Onthe Bus.The Bus ...

physics
In a uniform magnetic field, can an Amperian loop ever have a non-zero value

physics
a car is pared on a cliff overlooking the ocean on an incline that makes an angle of 24 below the horizontal. the negligent driver leaves the car in a neutral and emergency brakes are defective. the car rolls down the incline with a constant acceleration of 4 m/s^2 for a ...

finance
Suppose you obtain a \$3,000 T-note with a 3% annual rate, paid quarterly, with maturity in 5 years. How much interest will you earn?

Math
If it took you 16.30 seconds to run 100m, how long would it take for you to run 60m?

Chemistry
Could u actually explain your calculations for solving this without dropping the s from (s+0.004) and the with dropping it. I'm not getting the same answers as u

Chemistry
Could u actually explain your calculations for solving this without dropping the s from (s+0.004) and the with dropping it. I'm not getting the same answers as u

Chemistry
This helped a ton thank you very much

Chemistry
The latter is correct

Chemistry
Caluculate the molar solubility of PbCl2 in 0.0040 M KI solution. The Ksp of PbI2 - 7.2 x 10^-9. The answer should be 3.29 x 10^-4. This is my work so far PbI2<=====>Pb^+2 + I- PbKI2----->Pb^+2 + KI^-1 7.2 x 10^-9=(s)(s+0.0040M) Assume s<<0.0040 7.2 x 10^-9=(s)(...

Chemistry
Will a precipitate form when 20.0mL of 1.8 x 10^-3M Pb(NO32 is added to 30.0mL of 5.0 x 10^-4M Na2SO4? The Ksp of (PbSO4) is 6.3 x 10^-7.

Chemistry
Will a precipitate of CaSO4 form if 40.0mL of 2.0 x 10^3M CaCl2 is mixed with 60.0mL of 3.0 x 10^-2 Na2SO4?

statistics
The distribution of grades of 50 students in a certain subject is normally distributed with a mean of 86 and a standard deviation of 12. 6. 7. If the passing grade is 75, how many failed in the subject?

Math
A bathtub is filled with 100 gallons of water. A cup of milk is then poured in and mixed thoroughly with the 100 gallons of water. A cup of liquid is then taken out and placed in a bowl. What fraction of the liquid in the bowl is milk? What is the ratio of milk to water?

English Help Re-wording
Help with re-wording my sentences Please: After September 11th the issue of racial profiling has expanded to more directly affect South Asian Americans, Arab Americans, Muslim Americans, and those identified as foreigners or immigrants. These communities are joining with ...

Math transformations
A parallelogram has vertices at A(-2,-1), B(-2,1), C(1,2),and D(1,0). If it is translated 1 unit right and 1 unit up, what are the vertices of the image?

Biology
Some protists were once classified as simple plants, others as fungi. Why are protists difficult to classify?

probability
so what is the answer for 1) and 4b) + 5b)?Thanks for helping out

probability
question 2 and the first part of 4 and 5 =0

probability
This figure below describes the joint PDF of the random variables X and Y. These random variables take values over the unit disk. Over the upper half of the disk (i.e., when y>0), the value of the joint PDF is 3a, and over the lower half of the disk (i.e., when y<0), the...

Math

Math
The amount of seltzer is 12 and it's 8 for the orange juice

Science
Ms Sue plz?

Science
Me either, what do you think it is?

Science
can u do my science helppp

Science
Which represents the correct functional order (first to last) of the human digestive system? A) mouth?esophagus?stomach?large intestine?small intestine?rectum B) mouth?esophagus?stomach?small intestine?large intestine?rectum C) mouth?esophagus?small intestine?large intestine?...

Science
Thx can u answer my others?

Science
Which best explains why children often look like their parents? A) Traits, or characteristics, are passed on to offspring from parents. *** B) Before being born, characteristics of offspring are randomly formed. C) Babies begin to look like their parents as their features ...

Science helppp
someone plz?

Science helppp
Through the miracles of medicine and technology, researchers have had some success with growing and transplanting hollow, relatively simple organs such as tracheas and bladders. Building organs like the heart and lungs have proved to be much more difficult. . Doctors have had...

Social Studies helppppp

Social Studies helppppp
Thanks! Can you check the ones below please?

Social Studies helppppp

Social Studies helppppp
Which statement BEST reflects the difference between tariffs and quotas? A) Tariffs raise prices on exports, while quotas set limits on imports. B) Tariffs raise prices on imports, while quotas set limits on exports. C) Tariffs raise prices on exports, while quotas set limits...

Help plz
Thanks Damon plz check others

Help plz
Not a lot at all, so The answer is D

Help plz-ss
Plz help

Help plz
Social Studies

Help plz
All of these are major issues facing governments in Africa EXCEPT A) famine due to drought, soil erosion, and overpopulation. B) HIV/AIDS becoming the leading cause of death for adults. C) a lack of sufficient, continent-wide economic development. D) pollution and acid rain ...

So confused
Thank you can you check my top one please?

So confused-DAMON
Is it B???

So confused
Which of these would be the BIGGEST threat to combatting the spread of HIV/AIDS in Africa? A) a disruption in the exporting of oil B) political instability within a country C) a trade embargo with the Middle East D) boycotting the next Summer Olympic games I picked A correct...

SS-DAMON PLZ HELP
No please pick one I choose c correct

SS
Okay I eliminated B&D so know I have A and C

SS
so c?

SS
C?

SS
27) How might specialization encourage trade? A) One nation will sell its specialty to others ONLY if they don't compete. B) Nations stop using products from other nations to support their own economies. C) Nations agree to work together as a team to make it easier for ...

SS
Thanks!

SS
I would say..D?

SS
What should I go with?

SS
Could I go with C?

SS
Which of these resources has caused the most conflict in Africa in the years since World War II? A) oil and lumber B) coal and copper C) natural gas and oil D) arable land and water idk I don't know what do I do? Any hints or clues?

SS
I get it, so it B?

SS
Which of these would be the BIGGEST threat to combatting the spread of HIV/AIDS in Africa? A) a disruption in the exporting of oil B) political instability within a country C) a trade embargo with the Middle East D) boycotting the next Summer Olympic games I think A but Im ...

SS
thx

SS
Ms Sue?

SS
Which of these BEST expresses the goal of Pan-Africanism of the 1960s? A) to resist communist forces in the Cold War B) stronger bonds between the nations of Africa C) to fight for the end of imperialism in Africa D) the formation of a single government throughout Africa 38) ...

SS- I think this got deleted
THx can you check my others plz?

SS- I think this got deleted
The correct answer is B right?

SS- I think this got deleted
Am I right?

SS- I think this got deleted
In Nigeria, the President is elected by popular vote, and is the head of state, head of government, and the leader of the Executive branch of government. In South Africa, the President is elected by the Parliament, and is the head of state and the head of government. . Using ...

Thanks!

The majority of Egyptians live along the Nile River and Nile Delta because A) land is inexpensive there. B) arable land is located there. *** C) the pyramids are located there. D) important archaeological sites are there.

ss helppp
whooo! Sorry but I have A LOT more, plz work with me- thank you Ms Sue

ss helppp

SS
Yipee!

SS
Why did apartheid in South Africa end during the 1990s? A) White leaders realized that the policy was hurting the country's economy and international reputation. B) The African National Congress began calling for its dismantling and the United Nations responded. **** C) ...

SS
Thx!

SS
Which European nations had the greatest influence in Africa in the early 1900s? A) Belgium and Italy B) Spain and Portugal C) Great Britain and Spain D) Great Britain and France ***

ss
B?

ss
In Nigeria, the President is elected by popular vote, and is the head of state, head of government, and the leader of the Executive branch of government. In South Africa, the President is elected by the Parliament, and is the head of state and the head of government. . Using ...

SS helpp
Okay Im going with C...thx

SS helpp
D?

SS helpp
or deserts...is it D?

SS helpp
Overfarming and overgrazing farmlands have been a major influence in which destructive process? A) deforestation *** B) reforestation C) desertification D) income distribution

SS helppp
Thx