# Posts by Linda

Total # Posts: 1,564

**Math**

How could you define the perimeter of a non-simple closed curve? Give an example in your explanation.

**Chemistry**

10 mole of NH3

**Business Math**

30 gals. with 15% spoilage=4.5 gals.profit(30x1.58)x1.2=56.88 gals.xpricexcost+20%56.88./.25.5gals.=markupfor remaining gals. no-2.23 round 5gals.spoiled 56.88./.25=2.28 not it so round off 4gals. 56.88./.26=$2.1876 or $2.19

**Physics**

When a mass-spring system oscillates with a small amplitude of A1, it has a period of 1.0 s. If the system is then made to oscillate with a larger amplitude of A2 = 2*A1, what is the new period? Thanks!

**Chemistry**

What kind of pressure would be exerted by 5 moles of water vapor if it were contained in a 0.5 liter bottle heated to 1000K?

**algebra**

the number of cats that are homeless can be modeled by the equation N= 2.1t squared - 82t + 95 where N is the number of cats that are homeless and t=0 set as the current year.Use the quadratic model to find the number of years from now until the number of homeless cats is ...

**Psychology**

Create an operational definition of self-confidence using peer reviewed articles as reference

**Calculus**

Represent f(x)= (e^x -1)/x as a power series.

**PreCalc**

The total electrical resistance R of two resistors connected in parallel with resistances R1 and R2 is given by 1/R=1/R1+1/R2. One resistor has a resistance of 2.3 ohms. Let x be the resistance of the second resistor. Express the total resistance R as a function of x. How do I...

**physics**

A loudspeaker is placed between two observers who are 111 m apart, along the line connecting them. If one observer records a sound level of 51.9 dB and the other records a sound level of 82.5 dB, how far is the speaker from each observer?

**chemistry**

Given the table of Ka values on the right below, arrange the conjugate bases in order from strongest to weakest. Acid Ka HClO 3.5 e-8 HClO2 1.2 e-2 HCN 6.2 e-10 H2PO4- 6.2 e-8 A. ClO2-, ClO¬-, HPO42-, CN- B. ClO2-, HPO42-, ClO¬-, CN- C. CN-, HPO42-, ClO-, ClO2¬- D...

**calculus**

1. e^ln3 - 2lnx 2. 2(lnx)^2 + lnx - 1 =0 3. d/dx (e^x . e^e^x)

**Algebra 1**

Thank you!

**Algebra 1**

is the slope y1-y2 over x1-x2?

**Algebra 1**

Ok-but what is the formula using x and y variables?

**Algebra 1**

how do I find the slope of the graph of the linear function "f"? f(2) = -3,f(-2) = 5

**Substance Abuse**

only certain people can become alcoholics? True or False. I think Its False?

**Help Please**

True or False? Beer and wine are less intoxicating then whiskey.

**history**

Writing a paper.... Has Israel gained or lost ground in the last 20 years?

**history**

I am thinking of writing a paper on Israel. What countries are threatening Israel?

**Math**

Can you figure out this message? ZASMEZASIXP IP JUT One clue the first word starts with an M

**chemistry**

calculate the energy of a wave that has a frequency of 3.5*10^8 m/s

**Banking**

What is the bottom line on an income statement ? A. The gross margin B. The final sales C. The total operating expences D. The net income (or loss)

**chemistry**

how to balance chemical equations

**Physics**

A 120 kg astronaut (including space suit) acquires a speed of 3.00 m/s by pushing off with his legs from an 1900 kg space capsule. What is the change in speed of the space capsule? As the reference frame, use the position of the space capsule before the push. if the push lasts...

**Statistics**

0.8

**Physics**

A 21.0 kg child descends a slide 3.4 m high and reaches the bottom with a speed of 2.0 m/s. How much thermal energy due to friction was generated in this process?

**Physics**

A cyclist intends to cycle up a 7.5 degree hill whose vertical height is 170 m. Assuming the mass of bicycle plus cyclist is 95 kg, calculate how much work must be done against gravity. If each complete revolution of the pedals moves the bike 5.6 m along its path, calculate ...

**Physics**

A 58 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 15 m, and falls a total of 36 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. Calculate the maximum acceleration she ...

**Physics**

A projectile is fired at an upward angle of 25.0^\circ from the top of a 310 m cliff with a speed of 220 m/s. What will be its speed when it strikes the ground below? (Use conservation of energy.)

**biology**

it is possible that he would be homozygous but not ccertain because some males have an extra chromosome foe example : the normal male has "XY" and another male may have "XXY" which means its possible for a male to be heterozygous but its not common. Now if ...

**Stout**

A chocolate chip cookie contains about 200 kcal. How many kilowatt-hours of energy per day does it contain. How long could you light a 100-W light bulb with the energy from the cookie?

**inter Algebra**

r+s=5 3s+2t=-1 4r+t=14 ican u breakdown the answer I get half way though i forgot the last pat wheater i put it back into the original equationn alot of steps i get lost

**inter Algebra**

A start up computer company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs $300 to produce. Find the price that will maximize the ...

**inter Algebra**

thank you henry you rock

**inter Algebra**

Pick a car and find its top speed. Assuming that your chosen car reaches its top speed at the top of a ramp, leaving the ramp vertically 20 feet about the ground: 1.) When will the car land back on the ground? 2.) When would the car be traveling the fastest? 3.) When would the...

**inter Algebra**

A startup company can sell 1000 computers if they price them at $500. The number sold will increase by 10 for every $1 decrease in the price. The company has fixed costs of $100,000, and each computer costs 4300 To produce. find the price that will maximize the company's ...

**microeconomics problems**

The GreenAcres mowing company wants to buy the new “Titan3000” lawn mowers. Assume that the lawn mowers are expected to last indefinitely, that operating expenses are negligible, and that the price per acre of mowed lawn is expected to remain constant in the future. ...

**inter Algebra**

is $14 by completing the square

**inter Algebra**

A band can sell 80 CDs at concert if they sell the Cds for $12 each. For every $1 increase in the price, they will sell 5 fewer Cds. Determine the price for a CD that will maximize the band's revenue.

**intermidiate algebra**

pick a car find its top speed. Asusuming that your chosen car reaches its top speed at the top of a ramp, leaving the ramp vertically 20 feet about the ground? 2. When would the car be traveling the fastest? 3.)When would the car be traveling the slowest? 4.) based on the ...

**economics**

A monopolist faces an upward-sloping marginal cost curve. Its profit-maximizing quantity will be a. at the minimum point of the marginal cost curve b. less than the (total) revenue-maximizing quantity c. equal to the (total) revenue-maximizing quantity d. in the unit elastic ...

**Physics**

You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 51 km/h (32 mph). A new model of mass 1900 kg takes 0.18 s from the time of impact until it is brought to rest. Calculate the...

**Physics**

A 23 g bullet traveling 220 m/s penetrates a 4.2 kg block of wood and emerges cleanly at 140 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?

**Physics**

A 3600 kg open railroad car coasts along with a constant speed of 11.0 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 3.70 kg/min. Ignoring friction with the tracks, what is the speed of the car after 80.0 min?

**Physics**

Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1800 kg/s with a speed of 3.8×104 m/s (at the moment of takeoff).

**Physics**

A 0.145 kg baseball pitched at 37.5 m/s is hit on a horizontal line drive straight back toward the pitcher at 48.0 m/s. If the contact time between bat and ball is 3.50×10^−3 s, calculate the average force between the ball and bat during contact.

**Physics**

Eight books, each 4.1 cm thick with mass 1.8 kg, lie flat on a table. How much work is required to stack them one on top of another?

**chemistry**

the value of Kp after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine the partial pressure of O2...

**partial pressure**

1) the value of Kb after the decomposition of sulfur trioxide (S03). 2SO3 (g)--2SO2 (g) +O2 (g) is 1.79 x10^-5 at 350 degree celcius. if SO3 initially at 0.200 atm pressure comes to equilibrium in an otherwise empty tank at 350 degree celcius, determine the partial pressure of...

**chemistry**

How many moles of sodium acetate CH3COONA must be dissolved in 1.00L of 0.200M acetic acid to make a buffer pH 4.56? ka of acetic acid is 1.76x10^-

**chemistry**

for a) i got the pH of HF to be 2.07 and for b) i'm a little stuck. the mole of HF is 0.2M x 0.05L =0.1mol the mole of NaOH is 0.2M x 0.02 L= 0.02mols. this is where i'm stuck

**chemistry**

sorry it's Kp, it's a typo

**inter algebra**

$102.00

**lang. arts**

This is due tomorrow!

**lang. arts**

Is "good" the adverb and "very" the word it modifies? (adverb)?

**lang. arts**

We read a very good Japanese folk tale called "Green Willow." Not sure what the adverb is in this sentence? Is "good" the adverb and "read" the word it modifies?

**lang. arts**

We will soon be going to computer class. Is "soon" the adverb and "going" the word it modifies? Thank you.

**lang. arts**

Your parents will probably give you permission. Is "probably" the adverb and "will" "give" the words it modifies? Not sure if both words or just "give"?

**lang. arts**

"Very" sadly, we returned home. Very is the adverb, is "sadly" the adverb it modifies?

**lang. arts**

Thank you for your help Ms. Sue!

**lang. arts**

Happy is an adjective?

**lang. arts**

We are "so" happy for you. Happy is the adverb, is "happy" the verb it modifies?

**lang. arts**

The play Purlie Victorious was "too" funny for words. "too" is the adverb, is "funny" the verb it modifies?

**language arts**

She wrote it "very" carefully. "Very" is the adverb; is "carefully" the adverb it modifies?

**language arts**

Keep is the verb? Away is the adverb?

**language arts**

Keep away from the acids in the science room. what is the adverb in the sentence and what are the word or words that each adverb modifies?

**lang. arts**

We should not have taken the canary outside. "Not" is the adverb. Is "should have taken" the words the adverb modifies and are the words verbs?

**language arts**

should be kept

**language arts**

Promises should "always" be kept. "always" is the adverb. What are the word or words the adverb modifies?

**Language arts**

I have almost finished my report on the writer Joy Harjo. "almost" is the adverb. Is "have" "finished" the words the adverb modifies?

**lanuage arts**

Clean your room now! Now is the adverb, is clean the verb it modifies?

**language arts**

The wind blew all the clouds away. Away is the adverb, what is/are the words the adverb modifies?

**Entrep**

Andy Rexford had started his custom embroidery shop in his garage with just one two-head machine and an old computer. From this humble beginning, Custom Stitches had grown into a full-time family business with sales of more than $750,000 a year and supplied the local college ...

**6th grade**

What fraction of a circle is 33 1/3 of a circle?

**physics**

A soccer ball of diameter 32 cm rolls without slipping at a linear speed of 2.4 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?

**adult education**

identify the three domains of development. Describe why it is important to consider each domain in the study of adult education?

**algebra**

all number less than 3 units from 0 I need to write inequality represents each situation

**sociology**

I am writing an essay on the socialogical perspectives on the issue of unemployment. The symbolic interactism and function analysis. I went on the web and research the issue of unemployment and the meaning of the perspectives, yet I am stumped on how to form a thesis and how ...

**methods of researh**

I Need the answer for why men use more declarative to women

**methods of researh**

why do men use more declarative to women

**6th grade math**

What is the difference between -3celsius and 8 celsius

**math**

Compute the number of vinyl tiles, measuring 8 in each side, needed to tile a kitchen measuring 24ft by 18ft. Area of kitchen:25X18=432 Area each tilein (feet):.667X.667=.44 432/.44=972 tiles Is my work correct?

**English**

What are two themes that may be present in a folktale?

**geometry**

Nevermind, I figured them out.

**geometry**

Pyramid has a base 6 yards X 6yards. Its height is 4 yards. Volume= Surface Area= I got 60 square yards for the surface area but it was wrong.

**geometry**

the scale factor between figure A and figure B is 0.25. If one side length of figure B is 56 yards, what is the corresponding side length of figure A?

**English**

What are some funding expectations that institutions have.

**math**

n+9 divied by 3=14 i do not understande this problem can you help

**algebra**

5+4d=37

**algebra**

i don"t understand this problem n+9 /3=14

**Psychology**

What do you think is the best way for personality psychology to move ahead in the future?

**Psychology**

I need information on borderline personality effects associated with immigration. No matter how much I research I can't seem to find any helpful information. Can you please provide some information to help get me started?

**math**

no my given answers are (a) $158,400.00 (b) $104,480.00 (c) $83,584.00 (d) $63,584.00 now which one is the given ics answer?

**Psychology Please Help**

Middle Ear Infection They also found that among children who were delayed at 24 months, low maternal education predicted delay even more strongly at 48 months (OR = 30.5) What does OR stand for? OME delayed cognitive development in children with OMR when compared to those ...

**Math**

8x-3y=-6 >> 8x=-6/3y >> x=-6/24y then: 8(-6/24y)-3y=-6 (-6y/3)-3y=-6 (-6y-9y)/3=-6 -3y/3=-6 y=6 then: 8x-3*6=-6 8x-18=-6 8x=-6+18 8x=12 x=12/8=3/2 so: X=3/2, Y=6

**Psychology**

Can you think of any examples of how interactions with a partner or spouse may have been influenced by what you learned by observing other family members or even television? I know one example might be seeing your parents argue when you were a child. But I can't think of ...

**english**

See what above? This website is very confuesing! I don't know what any of you peoplee\ here are talking about! I am looking for information on The Scarlet Letter and all I see here is wreid 1.look around you.2. blah blah blah! What on earth are you talking about?! I'm ...

**english**

See what above? This website is very confuesing! I don't know what any of you peoplee here are talking about! I am looking for information on The Scarlet Letter and all I see here is wried 1.look around you.2. blah blah blah! What on earth are you talking about?! I'm ...

**Geometry**

19.39