# Posts by alli

Total # Posts: 92

**math**

Yesterday, the price of a car Andy wanted to buy was $20,000. Today the car is on sale for $15,000.00. What is the percent decrease in the price of the car?

*January 18, 2017*

**science**

Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but I am having a hard time figuring out the final ...

*November 30, 2016*

**Science**

Take 1mL of 1M NaCl solution, and add 9mL of water. Then take 10microL of the diluted solution and add 40microL of water. What is the dilution? And what is the final concentration of NaCl? So I see how this is a 2:1 dilution, but I am having a hard time figuring out the final ...

*November 29, 2016*

**Physics**

Thanks for your help! I see my mistake!

*July 13, 2016*

**Physics**

A 4.65-μF and an 9.30-μF capacitor are connected in series to a 60.0-Hz generator operating with an rms voltage of 111 V. What is the rms current supplied by the generator? The capacitors are in series so I used C = C1*C2/(C1 + C2) and got C = 3.1*10^-6 Xc = 1/wC...

*July 13, 2016*

**Physics**

A parallel-plate capacitor is constructed with circular plates of radius 5.6×10−2 m . The plates are separated by 0.27 mm , and the space between the plates is filled with a dielectric with dielectric constant κ. When the charge on the capacitor is 1.9 μC...

*June 21, 2016*

**French**

what word is E L A É S L unscrambled.

*September 29, 2015*

**finite**

.5457811129

*September 7, 2015*

**chemistry**

The limiting reagent is P

*April 13, 2015*

**chemistry**

How many moles of P4O10 can be produced with 9.544 x 10^-1 moles of the limiting reagent?

*April 13, 2015*

**Chem**

Given the following reaction: 4 KO2 + 2 H2O + 4 CO2 ==> 4 KHCO3 + 3 O2 How many moles of O2 will be produced if 3.27 moles of CO2 react completely?

*April 13, 2015*

**trig**

How do I verify this? Cos^4x-Sin^4x=1-tan^2x/sec^2x

*April 2, 2015*

**Statistics**

Bender Electronics buys keyboards for its computers from another company. The keyboards are received in shipments of 75 boxes, each box containing 30 keyboards. The quality control department at Bender Electronics first randomly selects one box from each shipment and then ...

*October 24, 2014*

**Math fractions**

Nata spent $28 on 2 DVDs. At this rate, how much would 5 DVDs cost? At what rate did she spend her money?

*September 8, 2014*

**social studies**

I came here for question 12 so if there could be an answer for it, that would be great.

*February 28, 2013*

**Math**

Solve the differential equation. Let C represent an arbitrary constant. (Note: In this case, WebAssign expects your answer to have a negative sign in front of the arbitrary C.) (dz)/(dt) + e^(t+z) = 0

*February 21, 2013*

**physics**

Consider the system shown, with m1 = 2.0 kg, m2 = 3.0 kg, and α = 30o. The force F acts horizontally to the left and the kinetic coefficient of friction between m1 and the incline is μk = 0.40. The mass m2 is moving up at a constant speed. (a) What is the magnitude ...

*February 19, 2013*

**Math**

A carpenter has a wooden stick that is 84 centimeters long. She cuts off 25% from the end of the stick. Then she cuts the remaining stick into 6 equal pieces. What is the length of each piece?

*December 5, 2012*

**finance mortgage payment**

your mortgage payment is $1,500 per month. Of this amount, insurance is %50, property taxes are $200, and interest averages about $1,100. Assuming you have other itemized deductions that already exceed your standard deduction and that you are in the 31% marginal tax bracket, ...

*October 4, 2012*

**algebra**

consider the function f(x)=9/x and g(x)=9/x find f(g)x))and any values that may be excluded what is g(f(x)) and any values that may be excluded and functions f and g inverse of eachother please show work

*September 5, 2012*

**algebra**

if f(x)=lnx, g(x)=e^3x, and h(x)=x^4 find following A)(f of g)(x)and the domain of f of g B) (g of f)(x) and the domain of g of f C) (f of h)(x) and the domain of f of h please show work

*September 5, 2012*

**algebra**

use the given zero to find the remaining zeros of the function h(x)=x^4-15x^3+60x^2+70x-816 zero: 5 show work

*September 5, 2012*

**college algebra**

use the given zero to find the remaining zeros of the function h(x)=x^4-15x^3+60x^2+70x-816 zero: 5-3i

*September 5, 2012*

**college alg :(**

if f(x)=lnx, g(x)=e^3x, and h(x)=x^4 find following A)(f of g)(x)and the domain of f of g B) (g of f)(x) and the domain of g of f C) (f of h)(x) and the domain of f of h

*September 5, 2012*

**college alg**

consider the function f(x)=9/x and g(x)=9/x find f(g)x))and any values that may be excluded what is g(f(x)) and any values that may be excluded and functions f and g inverse of eachother

*September 5, 2012*

**college Alg**

graph the parabola, then determine the domain and range. f(x)=x^2x-4x-4

*September 5, 2012*

**college alg**

the function f(x)=6x+9/3x-7 find the inverse and check answer f^-1(x)=? please show work

*September 5, 2012*

**college algebra**

solve the following exponential equation. (e^x-e^-x)/2=6 what is the exact answer? x=? what is the answer approx to 3 decimal places? x=?

*September 5, 2012*

**college algebra**

solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work

*September 5, 2012*

**college algebra**

so do i write the domain as (-infinity,infinity) not sure how to write the range you showed. It has to be in interval notation would it be (infinity,-8)?

*September 5, 2012*

**college algebra**

graph the parabola, then determine the domain and range. f(x)=x^2x-4x-4

*September 5, 2012*

**college alg**

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 (they look like fractions) A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

*September 5, 2012*

**college alg**

find the equation of a line that is perpendicular to line y=1/6x+6 and contains point (-7,0) y=? please show work so i can see how its done

*September 4, 2012*

**college alg**

find the equation of a line that is parallel to the line x=6 and contains the point (-8,9) please show work, it also wants me to show the answer in an equation

*September 4, 2012*

**alg**

find the domain of the composite function f of g. f(x)=x^2+9;g(x)=sqrtx-7 please show work

*September 2, 2012*

**algebra**

find the functions f and g so that f of g =H. H(x)=(6x+9)^4 please show work so i understand this better. thank you

*September 2, 2012*

**alg**

change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?

*September 2, 2012*

**algebra**

change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?

*September 2, 2012*

**algebra**

find the functions f and g so that f of g =H. H(x)=(6x+9)^4 please show work so i understand this better. thank you

*September 2, 2012*

**algebra**

find the domain of the composite function f of g. f(x)=x^2+9;g(x)=ãx-7

*September 2, 2012*

**college algebra**

analyze the graph of the following function. r(x)= x^2+x-6 -------- x^2-x-2 there are 8 steps but they don't make sense to me... please show work!! thanks

*August 21, 2012*

**college algebra**

solve the following inequality. write the answer in interval notation x^3-4x^2-21x<0 please show work so i can understand this problem better! thanks

*August 19, 2012*

**college algebra**

determine the quadratic function f whose graph is given. the vertex is (1,-3) y intercept is -2 please show work so i can see how this is done, thank you!

*August 19, 2012*

**college algebra**

graph the function and state the vertex axis of symmetry, the intercepts, if any: f(x)=x^2-8x+15 Please show work so i can understand this. thank you

*August 18, 2012*

**algebra**

find the following for the function f(x)= (x+5)^2(x-1)^2 a) find the x and y intercepts for the polynomial function f b) determine whether the graph of f crosses or touches the x axis at each x intercept C) put all information together to obtain the graph of f

*August 18, 2012*

**College algebra**

graph the function using transformations, show and state , a) the domain, B) range c) the asymptotes F(x)= 1 ----- -4 x^2 please show work!

*August 18, 2012*

**college algebra**

find the vertical, horizontal, oblique asymptotes, if any, for the given rational function. R(x)=10x^2+19x-15 -------------- 2x+5 please show how you arrived with the answer! thank you

*August 17, 2012*

**college algebra**

graph the function using transformations, show and state , a) the domain, B) range c) the asymptotes F(x)= 1/x^2-4 please show work!

*August 17, 2012*

**science**

A solution has a density of 1.50 g/mL. How many grams are needed to obtain 10.0 mL of solution?

*May 29, 2012*

**science equation**

I don't think I have enough information to answer this question but my teacher says i do. The question is, If I drop a ball off of the AUL building and it take 8 seconds to hit the ground what is the velocity of the ball? I know that v=d/t so I have v=d/8 so there is ...

*December 5, 2011*

**School**

What happens if dams are too big

*November 14, 2011*

**Physics Lab**

a.) 1/4

*November 2, 2011*

**MATH**

the price f an item in a store is reduced by 50%. what is the total percent change as a result of the 2 discounts

*October 30, 2011*

**Math**

An airline has a plan in which a spouse can travel for 75% of the base cost of a ticket, and a child under 12 can travel for 50% of the base cost. a. Using the plan, what will it cost a married couple with three children under 12 to fly if the base cost is 280? b. what percent...

*October 30, 2011*

**Math**

i think your answer is 28% because if you do .35 and times it by 80 you get 28.

*October 30, 2011*

**geometry**

if a regular shaped object has a length of 6 cm, a height of 6cm, and a width of 6 cm, what will the volume?

*October 18, 2011*

**Algebra 2**

simplify ^3√32 not in decimal form?

*October 6, 2011*

**Algebra 2**

simplify ^3√32 not in decimal form?

*October 6, 2011*

**math**

9x0+5-3=42

*September 8, 2011*

**Math**

if x^13 = j and x^12 = 4/9, which of the following is an expression for x in terms of j? a. 9/4 j b. 4/9 j c. 4j d. 9j e. 13j

*September 4, 2011*

**Math**

In a line with slope of 3/2 that passes through the point (4,3), what is the y-intercept? a (-3,0) b (0,-3) c (0,0) d (0,3) e (3,0)

*September 4, 2011*

**physics**

Consider a ball that picks up a speed of 3 m/s each second when its rolls from rest down an inclined plane. If the ball takes 4 seconds to reach the bottom, its speed at the bottom will be?

*June 22, 2011*

**chemistry**

three compounds A,B and C all have the formula C5H8. All three compounds will decolorize bromine in CCl4. Compound A reacts with NaNH2. Compounds A and B both yield pentane when they are treated with excess H2 with the pt catalyst. Under the same conditions C absorbs only 1 ...

*June 7, 2011*

**sociology**

What are some examples of emerging mores related to dating

*May 27, 2011*

**world cultures**

what impact trade and religion has had on world history?

*May 16, 2011*

**linear equations**

What is the solution to the linear system –4x + 2y = –56 and –3x – 6y = 33?Question 3 options: (–9, 10) (–9, –10) (9, 10) (9, –10)

*January 5, 2011*

**solving systems by elimination**

What is the solution to the linear system –4x + 2y = –56 and –3x – 6y = 33?Question 3 options: (–9, 10) (–9, –10) (9, 10) (9, –10)

*January 5, 2011*

**chemistry**

what number of joules needed to turn 325g of water at 100 degree c to steam at 100 degree c

*October 4, 2010*

**Chemistry**

the concentraion is .900 g/L. I'm stuck on the same problem!!

*October 3, 2010*

**3rd grade**

My little brother needs some help on his make up homework. We cant get help until we get back home from visiting family...so all the help we get means a lot! all the paper says : What are the family facts for 3,5, and 8? I don't get it either... thanks

*September 11, 2010*

**3rd grade**

what are the facts of 3,5,8

*September 11, 2010*

**physics**

a kicker kicks a football from the 5 yard line to the 45 yd line ( on the same half of the field). Ignoring air resistance, where along the trajectory is the speed of the football a minimum. what formuls is used and show work a) at the 5 yd line, just after the football leaves...

*September 6, 2010*

**US History (AP/CC)**

Thank you! Very helpful =]

*June 6, 2010*

**US History (AP/CC)**

How did the Congress first respond to the unexpected fall of France in 1940? a-revoke to all neutrality laws b-pass a conscription law c-enact a new neutrality law enabling the Allies to buy american war material on a cash and carry basis d-call for the wuaranting of agressor ...

*June 6, 2010*

**US History (AP/CC)**

WWII What caused the Japanese to bomb Pearl Harbor? Like what was their maine reason to get America involved in the war? confused on this question...all the help is appreciated =] thanks!

*June 6, 2010*

**science**

help!!!! leggoosss my hw says - after learning about rocks at joshua tree national park, i am now a great (blank)

*March 22, 2010*

**Trig**

Need hellpp!! If a bicycle has 26 inch diameter wheels and the front “chain”drive has a radius of 2.1 inches and the back drive has a radius of 2.5 inches, how far does the bicycle travel for every one rotation of the cranks (pedals)? Carry out all calculations ...

*October 4, 2009*

**English**

i need to Make up a sentence using the nonsense word fretish as a noun. what does fretish mean???

*August 25, 2009*

**writing**

Sandy called in sick,but she'll be back tomorrow.

*August 13, 2009*

**Chemistry**

I have to draw the compound 3 methyl 1-hexene. This is what I've got: CH CH=CH-CH-CH-CH-CH-CH I know there should be some numbers attached to the CH's, but I dont' know where they should be and what they should be. What are the rules concerning numbers? How do you ...

*May 6, 2009*

**trig**

rules of logarithms: can someone please explain how to do these problems? I understand the rules I just don't understand how they apply 1. e^(3lnx) 2. e^(1+2lnx) thanks!

*January 31, 2009*

**Trig**

Rules of Logarithms: Can someone explain how to do: 1) e^(2(ln)(x)) 2) e^(-lnx) I know the rules I just don't understand how they apply.. thanks!

*January 30, 2009*

**english**

would the verb in this sentence be transitional or intransitional. if transitional, what would be the object? She threw a wonderful celebration.

*January 20, 2009*

**6th grade**

can you unscramble these letters? ppedoeryre

*November 5, 2008*

**Science**

How much force is there to lift an object?

*October 26, 2008*

**math**

rewrite each pair of fractions using the least common denominator. 20 3 21 7

*October 21, 2008*

**Science**

right, so in other words I would round it . . . . .

*October 12, 2008*

**Science**

Is this correct? work= .01 x mass x distance mass measured in grams distance measured in meters Is this right??

*October 12, 2008*

**math**

one month damien earned $488 and the next month he earned $605. estimate the differnce inth amounts damien earned.

*September 8, 2008*

**math**

how do u find probability?

*December 15, 2007*

**british idioms**

are these idioms british? pig in a poke, back to basics, back to square one, to sling one's hook, a baker's dozen, gone for a burton and break one's duck i also have to make some tasks about them..can anyone give my an idea?should i make a quiz or something else ...

*January 13, 2007*

**british idioms**

anything about their origin..eho said them maybe for the first time or something like that.i have the list of ritish idioms but i need some theory http://www.google.com/search?hl=en&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=british+idioms&spell=1 Thank you for using the Jiskha ...

*January 12, 2007*

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