# Posts by DANIELLE

Total # Posts: 869

**college chemistry**

The equilibrium constant for the reaction Sr(s) + Mg2+(aq) <---> Sr2+(aq) +Mg(s) is 3.69 x 10^17 at 25 C. Calculate Ecell for a cell made up of Sr/Sr2+ and Mg/Mg2+ half cells.

**math**

tiffany is sending a package that may not exceed pounds. the package contains books that weigh a total of 9 3/8 pounds. the other item to be sent weighs 3/5 the weight of the books. how much does the package weigh

**math**

364 divided by 6 the answer has to be in a fraction

**Math**

What does it take to win a tug of war

**Math**

What does it take to win a tug of war

**Math**

What is 1/10 of 2(10)+4(1)+6(1/10)+7(1/100)+8(1/1000)

**Math**

Put these numbers from least to greatest 80/100 9/10 and 7/10

**Literature**

Which of the following best describes the shift in the speaker's tone toward Naett? a. from affectionate to proud b. from worshipful to gloating c. from emotional to detached d. from sentimental to concerned

**Maths**

30 grams of a breakfast cereal provides 16.2mg of vitamin C. This is 24% of the recommended daily intake. What daily intake of vitamin C is recommended?

**Math**

URGENT Candice and Dino operate computer repair services. For a service call, candice charges 40 and dino charges 50, in addition, they each charge an hourly rate. Candice for 35/hr and Dino for 30/hr . One day their charges of two service calls were the same, what did they ...

**math- study question for final**

You are given a sample of 106 body temperatures having a mean of 98.2 F and a standard deviation of 0.62 F. You are asked to test the hypothesis that the population mean body temperature is 98.6 F using a 0.05 significance level. What value should you use for the test ...

**math**

Just want to double check please... Susie has two children, Mary and Jake. Given that Susie has Alzheimer’s and there’s a 25% chance that she passed the Alzheimer’s gene onto her offspring, what is the probability of BOTH Mary and Jake developing Alzheimer’...

**Math**

How do you write this as an algebraic equation with two variables? Four times the number of cars less twice the number of trucks is 33? Thanks!

**Accounting**

The company rents office space and on December 1 had paid 7200 to the landlord for 12 months' rent in advance.

**home economics**

what are the five branches of home economics?

**english help please!!**

Yeah its hallow

**English**

What are the correct words for the following sentence? "Already angry, the customer became even more ________ when he received only this _______ response. "No returns." Here are the words- ~curt ~retort ~demoralize ~dilemma ~sabotage ~subsequent ~inclination ~...

**Physics**

Calculate the work done by a 300N Force moving a 20kg object a distance of 50m

**math**

whats 4/12 =1/3 divisor

**Math**

How much weight does a 747 aircraft lose due to jet fuel consumption during a 4 hour flight?

**MATH**

Rewrite equation w=exp(2y+8z-3x) as the product of three terms. note that writing exp(a) is the same as writing e^a

**MATH**

SIMPLIFY THE FOLLOWING EXPRESSION: Z=LOG(E^5Y) i MOVED THE EXPONENT TO THE FRONT: Z=5YLOGE IS THIS CORRECT?

**MATH**

REWRITE EQUATION W=EXP(2Y+8Z-3X) AS THE PRODUCT OF THREE TERMS

**Math problem solving**

At the hardware store , you buy hammers for $ 30 a dozen. And sell them for $ 3.50 each. What is the percent mark up for the hammers?

**math**

you deposit $200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to $221?

**Maths**

Bob has 15 more cards than Alan. Colun gives Bib 25 cards. Bob now has 3 times as many as Alan. How nany has Alan got?

**Math**

did you ever get the answer.?

**technology**

You want to discard your old computer and want to securely erase the data from your hard drive. What can you use to do this and what is the process called?

**science**

if a force of 3000 N can move a crate at an acceleration of 4.0 M/S what is the mass of the crate

**Physics**

A crate is initially at rest and then slides down a long inclin that is 30 degrees above the horizontal. If the coefficient of kinetic friction is 0.40, the speed of the crate after 5s is ?

**Health**

The answer is C - 6-12 months.

**Health**

D, all of the above.

**Physics**

A pellet (20g) is launched horizontally off a cliff (20m high) from a spring-loaded gun. The spring has constant k= 1800 N/m and is compressed 0.10m before launch. How much energy is stored in the spring before launch? If all that energy is transferred to the pellet, how fast ...

**Health**

A is the answer.

**Health**

The answer is B, Less sensitive.

**Health**

The answer is B, Severely suppresses.

**chemistry**

Using the following equation 2C2H2 + 5O2 -> 4CO2 + 2H2O what volume of oxygen would be needed to react with 89.6L of C2H2 at a temp of 273 and a pressure of 101.3 kpa. I can't seem to figure out my first step. Using PV=NRT should I do initial and final conditions? I ...

**Algebra**

What is the slope of the line that passes through the pair of points (3,8) and (9,5)? A. -2 B. 2 C. 1/2 D. -1/2 What is the slope of the line that passes through the pair of points (-7/2, -3) and (-5, 5/2)? A. 6/22 B. -6/22 C. 22/6 D. -22/6 Write and equation in point-slope ...

**algebra**

the seventh term of a arithmetic sequence is 72 and the tenth term of the sequence is 90. if the sequence is defined by a formula f(n), then find f(2). How would you do this?

**Science**

Give two reasons why so little is known about organisms from the Precambrian time, even though it was the longest period and early earth's history?

**math grade 1**

1 bike = 2 wheels, one seat so 19 /2 =9.5 =9 wheels 4 bikes one tricycle = 3 wheels one seat 6 trikes

**MATH**

substitute 7 in x spot so 4 (7-4)=4(3)=12

**Physics-Conservation of Momentum**

3. A train loaded with steel, moving at 90km/h, collides head on with a stationary train of mass 6000kg. if the trains couple after collision and move forward with a velocity of 80km/h, find the mass of the train loaded with steel. My work so far: PTO=PTF mivi+m2v2=mvf mi (25m...

**Physics**

2. Saturn has a radius of about 9.0 earth radii, and a mass 95 times the Earth’s mass. Estimate the gravitational field on the surface of Saturn compared to that on the Earth. Show your work. Answer: g= GM/r² G= 6.67 * 10^-11 Nm²/kg² ME= 5.98 * 10^24 kg RE=...

**Algebra!!**

1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)? A. -3 B. -2 C. -1/3 D. 1/3 2. A line has a slope -5/3. Through which two points could this line pass? A. (12, 13) and (17, 10) B. (16, 15) and (13, 10) C. (0, 7) and (3, 10) D. (11, 13) and (8...

**Algebra**

1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)? A. -3 B. -2 C. -1/3 D. 1/3 2. A line has a slope -5/3. Through which two points could this line pass? A. (12, 13) and (17, 10) B. (16, 15) and (13, 10) C. (0, 7) and (3, 10) D. (11, 13) and (8...

**Algebra**

1. What are the next two terms of the following sequence? 1, 5, 9... A. 27, 211 B. 10,11 C.12,15 D.13,17 2. Which of the following are examples of arithmetic sequences? Choose all that apply. A. -2,2,6,10 B. 1,3,9,27 C. 5,10,20,40 D. 5,1,-3,-7 3. What is the common difference ...

**geometry**

Raul is laying a cement concrete walkway in his backyard. He decides to put a turn of 30° from the horizontal in the walkway to go around a tree and flowerbed. Once he gets past the tree, he wants to continue the walkway in the same direction as before. At what angle ...

**Algebra**

Tim's scores the first five times he plays a video game are listed below. 4,526 4,599 4,672 4,745 4,818 Tim's scores follow a pattern. Which expression can be used to determine his score after he played the video game n times. A.) 73n + 4,453 B.) 73(n + 4,453) C.) 4,...

**Math**

The answer would be 122 degrees Fahrenheit.

**Language Arts**

Which of the following correctly revises the the sentence so that it is entirely in active voice? A. It has been decided by the school at the regular teacher should not evaluate the class; instead, the assessment should be performed by a visiting scholar. B. The school has ...

**Math**

Shiela spent $120 on a coat. She spent 2/3 of her remaining money on a dress. She's left with 1/5 of her money. How much he money did she have to begin with?

**algebra**

the sum of 2 consecutive integers is at most the difference between nine times the smaller and 5 times 5 the larger

**Health**

The answer is D- 4 times a day.

**Algebra 1**

did anyone get the answers to this?

**Chemistry**

Using the concentration of CH3COOH (0.8326M) and the equilibrium concentration of H3O+ (3.2x10-3), complete the reaction table for vinegar. Then calculate the acidity constant. Reaction table is given Ch3COOH + H2O --CH3COO- + H3O+ Initial. Change equilibrium

**Algebra**

A triangle has an area of 65ft. Its height is 3 ft more than its base. Find the measure of the base

**math**

is X cubed symmetric about the x-axis, Y axis, the origin, or none?

**Health**

In order to loose weight you have to ___? A. Burn less calories than you consume B. Burn more calories than you consume C.Eat more D.Eat less

**statistics**

suppose that from 8 students, we want to take a committee of students? How many committees of 3 can be selected? How many of 4?

**Physics**

You are asked to consult for the city's research hospital, where a group of doctors is investigating the bombardment of cancer tumors with high-energy ions. The ions are fired directly toward the center of the tumor at speeds of 5.6 ×106m/s. To cover the entire tumor...

**social studies**

I don't know

**Social Studies**

How did the movement of people affect historical events?

**english 3**

which choice contains broad pronoun reference?

**chemistry**

HCOOH + CaCO3 will give what (what are the products)

**English four**

Identify the gerund phrase and identify the noun function of the gerund. Brett earn his income by repairing cars

**How Children Learn**

1. Which of the following is an essential ingredient of academic self-esteem? A. Individual assignments requiring problem solving (me) B. Acceptance by teachers and teacher aides C. Meeting deficiency and growth needs D. A school without grades 2. What kind of responses do ...

**geometry and measurement**

Lila wants to build a fence around her pool. The pool is 25 feet long by 15 feet wide. The fence is to be 10 feet from the edge of the pool. how many feet of fencing will she need?

**Calc**

The marginal cost of manufacturing x yards of a certain fabric is C′(x)=3−0.01x+0.000006x2 (in dollars per yard). Find the increase in cost if the production level is raised from 3500 to 8500 yards. Increase in cost =

**chemistry**

How many grams of oxygen gas must react to give 2.70g of ZnO? 2Zn(s)+O2(g)→2ZnO(s)

**Physics**

A stone is catapulted at time t = 0, with an initial velocity of magnitude 18.6 m/s and at an angle of 41.6° above the horizontal. What are the magnitudes of the (a) horizontal and (b) vertical components of its displacement from the catapult site at t = 1.06 s? Repeat for...

**global history**

is it that the studies will make him fluent and bold and self confident in speaking with everyone.

**global history**

can you help me answer it I am still a little confused

**global history**

They were expected to know several languages, understand philosophy and scientific teachings, appreciate literature and art, and further, to be deft sportsmen.

**global history**

is this okay so far, what should I add?

**global history**

the study of art leads to individual achievement and this leads to advances in math and sciences and this leads to more jobs

**global history**

The qualities of a "Renaissance man" reflected the political and social values of the Renaissance as these qualities were based upon a high regard for human worth and a realization of what individuals could achieve. is this correct?

**global history**

to what extent are studies in the arts important to the success of a renaissance man?

**physics**

A crane operator intends to lift a 300 kg piece of equipment using an upward force of 4000 N, will he be able to lift the equipment.

**Integral**

Calculate the integral of (1/(u^(5/4)))+5.5√u du

**History**

is this correct?

**History**

The qualities of a "Renaissance man" reflected the political and social values of the Renaissance as these qualities were based upon a high regard for human worth and a realization of what individuals could achieve.

**algebra**

16

**Chemistry**

56mL of a stock solution of hydrobromic acid, HBr, is added to 85mL of water, yielding a solution having a pH of 1.0. What was the molarity of the stock solution? I know Molarity = moles of solute/ liters of solution

**Physics**

Cart A has a mass of 10kg and is moving towards cart B at a speed of 15 m/s. If cart B is moving towards cart A with a speed of 5 m/s, what mass must Cart B have to stop both carts upon collision?

**Calculus**

A manufacture has been selling 1300 television sets a week at $420 each. A market survey indicates that for each $16 rebate offered to a buyer, the number of sets sold will increase by 160 per week. a) Find the price p(x) of each television as a function of x, where x is the ...

**Calculus**

A model for the food-price index (the price of a representative "basket" of foods) between 1984 and 1994 is given by the function I(t)=0.00009045t5+0.001438t4−0.06561t3+0.4598t2−.6270t+99.33 Where t is measured in years since midyear 1984, so 0≤t&#...

**Calculus**

The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar increase in rent. Similarly, one ...

**Health**

A?

**math**

The outside diameter of a pipe is 5 and 7/32 inches. The walls of the pipe are 5/32 inches thick. find the inside diameter

**math**

20

**math**

You have 160 boxes of cookies. In each case you can pack 8 boxes of cookies. How many cases would be filled from these boxes of cookies? I'm not sure if i do 160*8 or what i believe its 20 instead of 1280

**math**

ok thanks

**math**

The temperature dropped from 6 Celsius to -5 Celsius. How many degrees did the temperature drop?

**Child education**

As Ms. Ramirez planned for her group time, she considered the best way to begin. Which one of the following would NOT be an effective way for her to begin group time? A. Asking individual children if they brought something to share B. Leading children in the finger play "...

**Chemistry**

Calculate the number of grams of propane (C3H8) consumed if 17.7 g of water is produced according to the reaction: C3H8(g)+5O2(g)=3CO2(g)+4H2O(g)

**chemistry**

A freezing point depression experiment was conducted using cyclohexane as the solvent. The freezing point of pure cyclohexane is 6.60°C and the freezing point depression constant is 20.00°C/m. The freezing point of a solution containing 0.135 g of an unknown ...

**Math**

A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the assignments could be made...

**language arts**

Multi-draft reading the meaning

**math**

how can you rename a mixed number to help you subtract