Saturday

February 25, 2017
Total # Posts: 1,866

**biology lab**

26.2g of sodium chloride(NaCL) are dissolved in enough water to make 100mL of solution. What is the molarity of this solution?

*February 24, 2017*

**biology lab **

how many grams of mercury II Nitrate will you need to prepare 500mL of a .60 M solution ?

*February 24, 2017*

**Algebra**

Thanks for your help

*February 22, 2017*

**Algebra**

Not sure how to do this problem need a little help at least to start. If h(x) = 1/(x+3)^3 then determine f(x) and g(x) such that h(x) = (f of g)(x).

*February 22, 2017*

**Algebra **

A gigabyte memory is ___ or ___ times larger than a kilobyte. I know that a gig (G) is 10^(9) & kilo (k) is 10^(3)

*February 22, 2017*

**Scienc**

2. A 2,500 kg car moves at 15 m/s2; 15 m/s2 is the _________ of the car A. Acceleration B. Force C. Velocity D. Speed** 3. Two people are pushing a couch from opposite sides. One person is pushing to the right with a force of 3 N. The other person is pushing to the left with a...

*February 16, 2017*

**science**

water evaporating into the air and turning cold, also known as Condensation

*February 16, 2017*

**Chemistry**

Express the absolute value of the partial charges as a decimal fraction of the elementary charge for CH. The bond length, is 131.1 pm, and the Dipole Moment, D is 1.46

*February 14, 2017*

**Chemistry**

I forgot to mention that OH - Bond length, pm is 98.0 and Dipole Moment, D is 1.66

*February 14, 2017*

**Chemistry**

Express the absolute value of the partial charges as a decimal fraction of the elementary charge for OH.

*February 14, 2017*

**Chemistry**

When heated, KClO3 decomposes into KCl and O2. If this reaction produced 79.9 g of KCl, how much O2 was produced (in grams)?

*February 13, 2017*

**Biology**

how many grams of sucrose would I need to make 350mL of an 18% solution?

*February 13, 2017*

** College calculus **

Find the dy/dx A. y = u sqrt u + 1; u = 2x^2 - 2/3 B. x = u/ (1 + u^3); y = u^2 /(1 + u^3) Can someone help me

*February 12, 2017*

**math**

What is the loop that forms after many iterations when the initial value of g is 1.7? What is the loop that forms after many iterations when the initial value of g is 1.72?

*February 5, 2017*

**Chemistry**

DrBob222 thank you so much! you don't know how much I was struggling. The information is enough for me :)

*February 5, 2017*

**Chemistry**

Sorry... I don't know what information to provide you... I thought the problem was just asking "what must one need to do in order to carry out the titration although the endpoint reaches a volume more than the 10-mL graduated cylinder can hold." I have data with ...

*February 5, 2017*

**Chemistry**

Describe the procedure you would follow to determine the concentration of vitamin c in a sample if the volume of dcpip required to reach the end point were more than the 10-mL graduated cylinder could hold. The titration must still be carried out in the 10-mL graduated ...

*February 5, 2017*

**Statistics Math**

Let A and B be two exclusive events with P(A)=.2 and P(B) =.3. Find P(A|B)

*February 2, 2017*

**Geargia State History (Social Studies)**

ouch... I thought you were supposed to help not hurt. I've read my text alo0t and I can't find the answers, but whatever ill just fail. doesn't bother me.

*January 31, 2017*

**Geargia State History (Social Studies)**

my answers IDK if their right but here they are: 2. A 5. False 7. B 9. C

*January 31, 2017*

**Geargia State History (Social Studies)**

2. Officials whose jobs are not provided for in the constitution but are required by law are known as __________. A. Constitutional Officers B Secretaries Of State C. Deputies D. Statutory Officials 5. True False: The state supreme court is an appellate court. A. True B. False...

*January 31, 2017*

**Math**

the answer is 20/100 or 1/5

*January 24, 2017*

**math**

translate this sentence 44is the difference of Rita's age and 12 in an equation .

*January 22, 2017*

**science**

if there was a source of pollution in Smithtown bay, what role could a physical oceanographer play in understanding the impacts to other parts of long island sound?

*December 30, 2016*

**Math general**

If you have to cut 102 ft of rope into 18 inches, how many pieces would you have?

*December 20, 2016*

**Vet tech**

. Academic Index is:

*December 20, 2016*

**Math**

Evaluate 3a^2-2ab+10 A=-2 B=3

*December 9, 2016*

**Chemistry**

I need to find the pH of a 500 mL solution of pure water after adding 33.0 mg of H2SO4 and 18.0 mg of HCl. Please help! So far I have tried to find the moles of 33.0mg of H2SO4 and got 3.24. Then I calculated pH by multiplying the subscript of H (2) by the moles (3.24) and ...

*November 27, 2016*

**Chemistry**

?????????

*November 25, 2016*

**Chemistry**

the solubility of aspartic acid in water is .500 g in 100 mL at 25 degrees C. If .251 g of aspartic acid is dissolved in 50. mL of water at 50 degrees C and let solution cool to 25 degrees C. is the solution supersaturated, saturated, or unsaturated. the solution was not ...

*November 25, 2016*

**Math**

I need help with proofs in geometry.

*November 20, 2016*

**Chemistry**

The equation is N2 + O2 reacts 2NO Given 12.5 mg of oxygen reacts with 21.4 mg of Nitrogen what mass of product is formed

*November 15, 2016*

**Math**

-.1091

*November 6, 2016*

**Math**

No, Ms. Sue, but thank you!

*November 6, 2016*

**Math**

A car was valued at 30k in 1994, it depreciated to 15k by 2000. What was the annual rate of change between 94 and 2000?

*November 6, 2016*

**accounting**

please

*November 5, 2016*

**accounting**

help

*November 5, 2016*

**accounting**

$16,550

*November 5, 2016*

**accounting**

Determine the ending balance of the Merchandise Inventory account given the following transactions: TooDaLoo had a beginning balance of $8,500 in its Merchandise Inventory account. They purchased $45,000 worth of inventory on account from WeeParcel under the credit terms 2/10...

*November 5, 2016*

**Math**

A TV that usually sells for $172.36 is on sale for 25% off. If sales tax on the TV is 9%, what is the price of the TV, including tax?

*November 4, 2016*

**Math**

Thx!

*October 25, 2016*

**Math**

If the legs of a right triangle have lengths of 6 inches and 8 inches, what is the length of the hypotenuse in inches? A.11 B.13 C.10 D.16 Is the answer C?

*October 25, 2016*

**Language Arts**

1. Which of the following sentences uses the past perfect verb tense. A) By June, I will have owned the camera shop for a decade. B) After it was sold, I had owned the camera shop for 12 year as C) I cannot recall a time when I have not owned some kind of shop. D) I owned that...

*October 24, 2016*

**ipc**

A 95.00 kg man on ice skates catches a ball moving at 18 m/s. The man is initially at rest. The man and the ball move together after the collision. The ball's mass is 0.14 kg. What is the final velocity

*October 20, 2016*

**Physics**

A girl jumps off a platform with a horizontal velocity of 2.06 m/s and lands in the water 1.3 s later. Gravity is 9.8m/s^2. How high is the platform.

*October 16, 2016*

**Algebra**

josh receives a weekly paycheck from his job. at the end of the week he has $52 remaining. throughout the week he spent a third of his paycheck at the mall and $8 for a new calculator. what the amount of his paycheck?

*September 22, 2016*

**math**

find the next three terms in 18,27,36,45

*September 21, 2016*

**Physics**

Initially (at time t = 0) a particle is moving vertically at 7.2 m/s and horizontally at 0 m/s. Its horizontal acceleration is 1.3 m/s 2 . At what time will the particle be traveling at 59◦ with respect to the horizontal? The acceleration due to gravity is 9.8 m/s 2 . ...

*September 20, 2016*

**Math**

Farmer has a field 1 square mile wide and 1 square mile wide. He divides it into fields 1/3 mile wide and 1/3 mile long how many fields will he have

*September 18, 2016*

**Algebra II**

y varies directly as x. if y=-5/8 when x=3/2, find x when y=2/5

*September 15, 2016*

**Chemistry**

What am I missing ? Should there be another step?

*September 15, 2016*

**Chemistry**

yes 0.2512 M stock so, 0.1410m x 0.01677L= 2.36457^-03 mole used. mols HCL = mols NaOH 0.2512M=2.36457^3

*September 15, 2016*

**Chemistry**

A 0.2512 stock sample of HCl is tirade to equivalence . If 16.77ml of 0.1410 M NaOH is required to reach the equivalence point, what volume of stock HCl was used for the tritation?

*September 15, 2016*

**Chemistry**

How many potassium ions are present in the following: 1) 3 moles of potassium chloride.

*August 28, 2016*

**Math**

The number of eggs Meg collected over the week were: Monday=8 eggs, Tuesday =5 eggs, Wednesday=6 eggs , Thursday=7 eggs, Friday=6 eggs, Saturday=5 eggs. By Sunday the weeks average was 6 eggs per day. How many eggs were collected on Sunday?

*August 10, 2016*

**Calculus rate of change**

Can you please check my answers and fix the ones if any that are wrong. Along with help on part d Consider the following fun f(x)=(3/4)x^3- x^3-3x^2+6x A.find relative extrema and identify max and min. I got x=1 max ,±√2 min B.determine the interval(s) where f(x) ...

*July 18, 2016*

**Calculus rate of change**

A machine starts dumping sand at the rate of 20 m3/min, forming a pile in the shape of a cone. The height of the pile is always twice the length of the base diameter. After 5 minutes, how fast is the base area of the base increasing? I honestly have no idea how to start this ...

*July 18, 2016*

**math**

please help me solve this problem quickly! John and Melanie are designing a science experiment for the school science fair. Their experiment requires a large amount of copper wire. They need 22 spools of copper wire that each contains 31 meters of wire. How many kilometer of ...

*July 5, 2016*

**math**

PLS... help me Give the least number that can be rounded to the nearest ten thousands

*June 27, 2016*

**Grammar**

THE 2ND ONE

*June 11, 2016*

**History**

Which best describes the role of Zionism in ongoing Middle East tensions? It led to disagreements between Arabs and Jews over control of Holy Land. <my choice It created and Independent Palestinian state opposed to Jewish people. It launched a war between moderate Arab ...

*May 24, 2016*

**Math**

Find the solution to each equation. 2^x=17 4log4^(x)=7

*May 19, 2016*

**Global Communication**

Great, thank you!

*May 9, 2016*

**Global Communication**

Is local culture an enabler or a hindrance in planning and executing a strategic communication campaign?

*May 9, 2016*

**Global Communication**

Thanks!

*May 9, 2016*

**math**

-6t+3(t-2)+5t=8

*May 9, 2016*

**Math**

Name things that are false about prime numbers

*April 30, 2016*

**Chemistry**

For the reaction 2 NO (g) + Cl2 (g) → 2 NOCl (g) If the concentration of NO is tripled, the rate of the reaction increases by a factor of nine. If the concentration of Cl2 is cut in half, the rate of the reaction is decreased to half the original rate. Find the order of ...

*April 17, 2016*

**algebra**

The size of the coyote population at a national park increases at the rate of 4.6% per year. If the size of the current population is 130, find how many coyotes there should be in 6 years. Use the function f(x)=130e^0.046t

*April 15, 2016*

**Math**

The Christmas Day parade in Manhattan, New York started on 145th St. The people walked north on this road for 4 miles. Then they turned on 34th street and walked for three more miles. 34th street has a bearing of N46°E. How far is the parade from their starting point on ...

*April 11, 2016*

**Math**

A jet took of at a rate of 310 ft per second and climbed in a straight path for 2.4 minutes. What was the angle of elevation of its path of its final altitude was 13,000 ft? Don't know what to convert 2.4 mins to. I got sin of the angle of elevation = 13,000/ ?

*April 11, 2016*

**Math**

An airplane flying at 390 mph has a bearing of N 28°W. After flying 3 hours, how far north and how far west has the plane traveled from its point of departure?

*April 11, 2016*

**Math**

A plane flies 430 miles at a bearing of S27°E, then turns and flies N63°E for 135 miles. Find the distance and the bearing from the starting?

*April 11, 2016*

**Math**

Jake is on the Appalachian Trial hiking. He hikes 8 miles due north and then turns and hikes an additional 10 miles at a bearing of N 67°W at which point he has reached a vista, eats lunch, and decides to bushwhack directly back to the trailhead. How far is he now from the...

*April 10, 2016*

**Math**

Jake is on the Appalachian Trial hiking. He hikes 8 miles due north and then turns and hikes an additional 10 miles at a bearing of N 67°W at which point he has reached a vista, eats lunch, and decides to bushwhack directly back to the trailhead. How far is he now from the...

*April 10, 2016*

**Math**

A plane flies 430 miles at a bearing of N27°E, then turns and flies N63°E for 135 miles. Find the distance and the bearing from the starting point to the ending point ? I found distance to be 450.69 mi by using A^2+B^2=C^2 because it is a right triangle. I am confused ...

*April 10, 2016*

**Chemistry**

Potassium oxide reacts with water to produce of potassium hydroxide. Please provide a balanced equation, and determine how much potassium oxide is needed to produce 80.5g of potassium hydroxide?

*April 5, 2016*

**Math**

A bucket holds 0.25 gallons of water. The water is poured into 20 equal-sized containers and there are 12 ounces left. How much does each of the smaller containers hold? (There are 128 ounces in a gallon.)

*April 2, 2016*

**math**

Determine the range of 𝑦 = −5cos(𝑥 + 𝜋 6)−3

*March 27, 2016*

**math**

Solve for x: 𝑦 = 2sin−1(𝑥 −5)

*March 27, 2016*

**math**

Write an equation for a cosecant function with a period of 3𝜋 and a range of (−‡,−2]¾[2,‡)

*March 27, 2016*

**Math**

You can put the numbers 1 to 10 on flashcards and show her like for the number 6 put 6 things she likes then do the rest of the numbers. And maybe she knows them give her a litte surprise like a reward her favorite thinGS, candy, toys, and etc

*March 16, 2016*

**math**

Two circles of radii 9cm and 13cm have their centres 15cm apart. Find the angle between the radii joining the centres to the points of intersection of the circles. Hence find the overlapping area between the two circles. - (Been struggling with this question, any help would be...

*March 10, 2016*

**Statistics**

Suppose a baseball pitcher throws fastballs 80 % of the time and curveballs 20 % of the time. Suppose a batter hits a home run on 8 % of all fastball pitches, and on 5 % of all curveball pitches. What is the probability that this batter will hit a home run on this pitcher'...

*March 6, 2016*

**english**

Which sentence contains the correct form of the possessive pronoun?

*March 2, 2016*

**problem solving**

Casandra had a pair of mice ,the female gave birth to 8 pups ,four males and four females. in the next term ,5 females each gave birth to 8 pups ,again 4 males 4 females.in the next term,each female does the same and no mice die .how many mice,male and female will Casandra now...

*February 28, 2016*

**maths**

four darts are thrown at a dart board .if all four darts hit the board,how many different point total are possible bullseye 9 second circle 7 third circle 4 outer circle 1

*February 28, 2016*

**math**

show that the constant p cannot lie between 1 and 2 if the equation px^2-p+10=2(p+2)x has real roots

*February 27, 2016*

**Chemistry**

Find the mass of urea (CH4N2O) needed to prepare 50.9 g of a solution in water in which the mole fraction of urea is 7.69×10−2.

*February 24, 2016*

**math**

In a three digit number, the hundreds digit is twice the units digit. If the digits are reversed, the new number is 396 less than the original number. Find the number.

*February 9, 2016*

**Social Studies**

Yay! Thanks I got them right

*February 9, 2016*

**Social Studies**

Ohh would it be D. Fresh water sources?

*February 9, 2016*

**Social Studies**

1. You are a migrant worker from India who has come to Kuwait. In which industry are you most likely to seek work? A. Fishing B. Oil** C. Farming D. Livestock B? 2. Which of the following has the greatest impact on human settlement in Iraq? A. Oil resources** B. Mountain ...

*February 9, 2016*

**History**

Which was a cause of the English Civil War? disagreements between Protestants and Jews rebellion in the English colonies a split between England and Scotland a dispute between the king and Parliament My answer: a dispute between the king and Parliament

*February 3, 2016*

**History**

Oh so it would be belief in predestination??

*February 3, 2016*

**History**

What about this one? Which was not a consequence of the Protestant Reformation? decline in literacy wars of religion belief in predestination the rise of nation-states My answer: wars of religion

*February 3, 2016*

**History**

Which was not a cause of the Protestant Reformation? worldiness and greed among Catholic officials sale of indulgences Council of Trent the Renaissance spirit of questioning authority My answer: Council of Trent

*February 3, 2016*

**Physics**

A cannonball is fired with initial speed v0 at an angle 30° above the horizontal from a height of 42.9 m above the ground. The projectile strikes the ground with a speed of 1.2v0. Find v0.

*January 31, 2016*

**Geometry**

What is the distance between point P(-2, 1, 3) and point Q(-1, 4, -2) to the nearest tenth? 35.1 units 9.3 units 18.4 units 5.9 units My answer: 18.4 units

*January 29, 2016*