# Posts by MAry

Total # Posts: 3,829

**Biology/Biotany**

the rise of water in plants is presently most satisfactorily explained by which element: magnesium, sulphur, calcium, phosphorus, or manganese?

**science**

An airplane flies due north at 235 km/h relative to the air. There is a wind blowing at 65 km/h to the northeast relative to the ground. What are the plane's speed and direction relative to the ground?

**algebra**

t= ((square root of x)/4) + (x/1100), t=14, solve for x

**algebra**

algebra with pizzazz!In music,what does allegro means?

**Health**

What is bone strengthening? A. Activities that produce a force on the bones that promote bone growth and strength B. Activities that produce greater elasticity of joints C. Activities that heal injuries and diseases associated with the bones D. None of the above I need help ...

**i don't understand this math**

It is A for number 4 I just had to quiz, I got 75 but I wanted 100...

**computer**

assuming a disk should never get 85% full and assuming you were generating 200MB of new data per week, at what point would you need to add another hard disk?

**Math**

Thanks, Steve! They are stand alone questions, so I'll ask my teacher what he means.

**Math**

Unit circle.... ugh. Probably have to make estimates, if I'm not to use a calculator.

**Math**

Well, now I'm just over thinking things...

**Math**

Actually it probably has something to do with trig identities...

**Math**

Correction, I should have said convert it to radians using a calculator or convert to radians using this conversion thingy: pi/180 degrees

**Math**

An other question states: "Solve: sin(35)" Again, same idea, how should I take this question? Should I just convert it into radians or should I just enter it into a calculator? The way they word these review questions are confusing to me. They should really be more ...

**Math**

Hello, I'm doing a review sheet for math and a certain question states: "solve: ln(3/4)" What should I take solve to mean? Do I just change it's form to ln(3/4) = ln3 - ln 4 ? Or, perhaps, I need to actually enter in the value into a calculator. How would you...

**windows 7**

asssuming a disk should never get 85% full & assuming you were generating 200 MB per week of new data, at what point would you need to add another hard disk?

**Science**

What would be a good sentence to describe Prime Meridian to a fourth grader?

**chem(molarity)**

a buffer contains 0.010 mol of lactic acid and 0.050 mol of sodium lactate per liter . How do I find the molarity of the acid and base?

**childcare**

A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x theory D. Piaget`s ...

**Theory to Practice**

What fundamental motor patterns do girls tend to have than boys? a. throwing and kicking b. hopping and skipping d. running and jumping

**Theory to Practice**

Which of the following is an obstacle to learning for a beginning learner? A.Knowledge of what elements of the movement to focus on B. Chronic indifference characteristic between birth and age three C. Shorter time to monitor perceptual input from the visual system D, ...

**algebra**

answer to 6r-6-3=15

**social studies(femist)**

Why do some women feel uncomfortable calling themselves feminist?

**math**

How did you get 237,853.?

**Human Services**

where can I find examples for these questions? How has the way in which nonprofit organizations acquire funding changed over recent years? What implications do you see this having on the organization you have analyzed above? Consider who is giving to organizations and the ...

**Elementary Statistics**

Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations of the mean? What are the minimum and ...

**math**

A man buys 3 items for $100. Each item is 50% less than the first. Total of all 3 has to be $100. Is this possible?

**Financial accounting 2**

If a building cost $600,000, has an estimated residual value of $240,000, has an estimated life of 36 years, and is depreciated by the straight-line method: a) What is the annual depreciation? b) what is the book value at the end of the 20th year?

**math**

Write the first six terms of each of the sequences whose nth term is a)(-3)n { ____, ____, ____, ____ , ____, ____ } b)3 – 4n { ____, ____, ____, ____ , ____, ____ }

**math**

how many dimes equal the same total amount as 1,000,000,000 pennies?

**math**

explain how you know the 6 in 364,021 is NOT in the thousands place.

**physics**

why it is easier to tear a paper off a full roll than a mostly used one? Is it because of Newton's law?

**math**

Identify the property of integers being illustrated in each of the following: johmmy a. (-2)(3)€ I b. (-4)0=0 c. -2(3+4)= -2(3)+(-2)4 d. (-2)3=3(-2)

**math**

95(12) + 24x = 5340 solve for x Simplify the following using properties of exponents. Leave answers as powers. 6^2.2^2.3^2 =

**math**

Using the distributive property of multiplication over addition, we can factor as in x2 + xy = x1x + y2. Use the distributive property and other multiplication properties to factor each of the following: 47.99 + 47 (x+1)Y +(X+1) x^2y+z^x3

**math**

The amount of bacteria after n min if the initial amount of bacteria is q and the amount of bacteria triples every 30 sec. (Hint: The answer should contain q as well as n.)

**math**

If two sets are subsets of each other, what other relationships must they have?

**math**

The following sets of ordered pairs are functions. Give a rule that could describe each function. Please show your work. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}

**math**

it is 17 not 7

**math**

well just wanted to see how you worked the answer

**math**

The following sets of ordered pairs are functions. Give a rule that could describe each function. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}

**math**

In the following, write an expression in terms of the given variables that represents the indicated quantity: a. The cost of having a plumber spend h hr at your house if the plumber charges $30 for coming to the house and $x per hour for labor b. The amount of money in cents ...

**math**

The following sets of ordered pairs are functions. Give a rule that could describe each function. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,7),(5,26)}

**physics**

which one best describes appr. uniform velocity? 1. a hockey puck sldng across the ice 2. a baseball pitched toward a batter 3. the tip of the minute hand on a clock 4. an olympic sprinter running the 100m

**math**

Can you make, using any math symbols, make four 8s equal 5?

**prealgebra**

At the same time that a 60-foot tall building casts a shadow that is 21.5 feet long, a nearby tree casts a shadow that is 18 feet long. Which measure is closest to the height of the tree?

**OCHEM**

I have the same question and it doesn't have any impurities.

**english**

oh yes, it's versus. Also, from the links you gave me, I found that versus means opposite. Thank you really much !!

**english**

antennae, involuntary , vesus Does any of those words mean opposite or contrasted with??

**books**

what is the theme for the book called OKAY FOR NOW

**english**

what is a theme give examples

**math**

35 is what percentage of 175?

**math**

the mean of a list of seven numbers is 45. if i add two numbers to this list the mean of he list becomes 37 what is the mean of the two numbers that i added to the list

**chemistry**

What is the electronic transition for LiCl using this equation 1/(7.01 ×〖10〗^(-7) )= R_H (1/4- 1/(n_f^2 ))

**english**

Comparison and contrast

**chemistry**

What is the amount of heat required to turn 1 g of ice into vapor directly without forming a liquid first?

**Chem 22**

3.5 cm of Mg ribbon(0.009729 g/cm0 reacts with HCL to produce 32.6 ml. of Hydrogengas at 750 mm Hg and 20 degree C. the vapor pressure of water at 20 degree C is 17.5 mm Hg. Calculate the molar volume of hydrogen (L/mole) and the percent error in your determination

**Chem 22**

3.5 cm of Mg ribbon(0.009729 g/cm0 reacts with HCL to produce 32.6 ml. of Hydrogengas at 750 mm Hg and 20 degree C. the vapor pressure of water at 20 degree C is 17.5 mm Hg. Calculate the molar volume of hydrogen (L/mole) and the percent error in your determination

**Chem 22**

2.00 grams of hydrocarbon warmed 150.0 ml. water from 25.0 degree C to 30.0 degree C. Calculate the heat of hydrocarbon in K/g. the specific heat of water is 4.184 J/g. degree C

**PED212**

Reflect on how your perceptions of physical education have changed based on your understanding of its evolution.

**chemistry**

Thanks Dr. Bob! :D You're the best!

**chemistry**

I will give an "illustration" as to how I found it. ============ll ll ll========= ll ll ll@ ll ll========= ll ============ll. All the parallel lines illustrate the hot water bag and how it was folded. The "@" is to represent the earphones hidden in the ...

**chemistry**

Hello, this question is purely out of curiosity, please help to enlighten me. A hot water bag (one of those rubber ones with the rubber stopper at the top you screw in) was hidden under my bed for about a month. It was filled with a bit of water and folded in half during this ...

**maths**

You deposit $10,000 in an account earning 4% interest compounded monthly. a. How much will you have in the account in 25 years? b. How much interest will you earn?

**math**

Suppose you are looking to buy a $5000 face value 26-week T-bill. If you want to earn at least 1% interest, what is the most you should pay for the T-bill?

**maths**

Ten blackberry plants started growing in my yard. Absent constraint, blackberries will spread by 200% a month. My yard can only sustain about 50 plants. Using the logistic growth model, a. Write a recursive formula for the number of blackberry plants in my yard b. Calculate ...

**Human Services**

program design component for Habitat for Humanity where can I find information about this?

**math**

If two fair dice are rolled, find the odds in favor of getting doubles

**Math**

The surface area of any shape is expressed in: A. square units. B. cubic units. C. feet and inches. D. length and width.

**Math**

A circle is measured by a straight line across its widest part. This line is the __________ of the circle. A. area B. radius C. volume D. diameter

**Math**

I got B 4.545

**Math**

Divide: 100/22 = A. 5.011 B. 4.545 C. 4.98 D. 4.345

**Math**

Convert the mixed number, 1 3/4 , to a fraction. Reduce fraction if necessary. A. 4/12 B. 4/7 C. 7/4 D. 12/4

**Math**

Thank you Bob :)

**Math**

What is the volume of a cylinder with the following dimensions: Radius 6ft Height 24ft A. 33.14 ft3 B. 2712.96 ft2 C. 2712.96 ft3 D. 33.14 ft2

**Math**

Reduce the fraction 20/100. A. 4/20 B. 2/20 C. 1/5 D. 5

**Case Study**

Gladys strengths includes her desire to see help concerning the spousal abuse she receives at the hands of her husband and the fear she has for her children

**intermeidate algebra**

solve using elimination method -3x+4y=1, -6x+6y=-3

**Algebra**

2a+3b-c+(a-b-c)-(2a-4b+3c)

**physics**

1. A yacht is tacking into the wind on a zigzag path. On the rst leg of the course, the yacht has a displacement of 12 km at 840 north of east. After a second leg has been completed, the yacht's resultant displacement is 10 miles at 230 west of south. Determine the ...

**English**

Here's my issue with A. Connor waited in line is one complete sentence. Ava parked the car is another complete sentence. "While" is used as a conjuction here - not as a preposition.

**Math**

find the perimeter and area of a right triangle if the shortest side is 9 inches and the longest side is 41 inches

**math**

A recreation room has the following dimensions. Carpeting will cost $1.50 per square foot. How many square feet of carpet will be needed and how much will it cost?15 ft, 33 ft, 12 ft, 12 ft.

**chemistry**

Titration of 50.00 mL of 0.0521 M sodium oxalate, Na2C2O4, required 38.71 mL of a potassium permanganate solution: 5 C2O42- + 2MnO4- + 16H+ = 2Mn2+ + 10 CO2 + 8H2O Calculate the molarity of the potassium permanganate solution.

**chemistry**

A 0.8378 g sample of calcium oxalate is heated to 1000oC, CaC2O4 = CaO + CO + CO2 Calculate (a) the moles of CaO remaining after ignition (b) the mmoles of CO evolved (c) the weight of CO2 produced.

**chemistry HELP!**

How much of a 0.10 M H2SO4 solution is required to neutralise 1g of NaOH? Express your answer in cm3.

**math**

how do you do 16.1 divided by .023 ?

**social studies**

Between 1935 and 1957, a period that included World War II, the birth rate rose from 16.9 to 25 per 1000 people. What was the most likely cause of this "baby boom?" A) the change in view toward artificial birth control methods B) the return of young American soldiers...

**Algebr 1B**

Simplify if possible x^2+17x/x^2-9x+x^2-10x/x^2-9x

**literature**

In the call of the wild,what did Buck dream about by the campfire?

**History**

That is wrong! it is not C

**computer**

Pseudocode code for sales figures for 4 quarters and the average quarterly sales for the year 2010.

**Math**

I know that 35 divided by 7 equals 5, knowing this how does it help me to find 42 divided by 7? Explain

**Math**

I know the answer I just need to know how to explain it!

**Math**

How could knowing that 35 divided by 7 equals 5 help me find 42 divided by 7?

**Chemistry**

A sample of methane gas at room temperature has a pressure of 1.50 atm and a volumne of 10.5 L. If the temperature is kept constant, what will be the new volume if the pressure is increased to 2.00 atm?

**Chemistry**

a basketgball is inflated to a pressure of 1,50 atm in a 20.c garage. What is the pressure of the basketball outside whre the temperature is -5.00 C?

**fractions**

I need a fraction example using 1024 x 768. It is for building a web page. So I guess the fractions would be 1024/1 x 768/1 .Any help would be great. The 1024 and 768 is what size monitor the screen is

**world geography**

japan

**10th grade chemistry**

What is the oxidizing agent during discharge

**algebra**

Add 12/5 and 8/13. Fractions show how it is done please.