Questions & Answers on Math, Physics, Chemistry, History and more - Recent questions in Algebra
https://quickwriter.com/qa/questions/math/algebra
Powered by Question2AnswerHw to use echelon method??
https://quickwriter.com/qa/294/hw-to-use-echelon-method
Plz help me to solve the equations below<br />
<br />
Need to use an echelon method<br />
<br />
4x+10y-2z=15<br />
<br />
x+2y+2z=16<br />
<br />
6y+4z=18Algebrahttps://quickwriter.com/qa/294/hw-to-use-echelon-methodTue, 22 Aug 2017 09:46:54 +0000Find P(x) - rational root theorem
https://quickwriter.com/qa/295/find-p-x-rational-root-theorem
Help me solve P(x) = (x2 - 2x - 1)(2x - 1) - 4Algebrahttps://quickwriter.com/qa/295/find-p-x-rational-root-theoremTue, 22 Aug 2017 09:46:52 +0000What is a greatest common factor
https://quickwriter.com/qa/296/what-is-a-greatest-common-factor
How to find greatest common factor of numbers 12 and 16?Algebrahttps://quickwriter.com/qa/296/what-is-a-greatest-common-factorTue, 22 Aug 2017 09:46:50 +0000Help me get an answer for ×²-8x+41
https://quickwriter.com/qa/297/help-me-get-an-answer-for-%C2%B2-8x-41
Algebrahttps://quickwriter.com/qa/297/help-me-get-an-answer-for-%C2%B2-8x-41Tue, 22 Aug 2017 09:46:47 +0000If f(x) + x^2[f(x)]^3 = 10 and f(1) = 2. What is f'(1)
https://quickwriter.com/qa/298/if-f-x-x-2-f-x-3-10-and-f-1-2-what-is-f-1
Algebrahttps://quickwriter.com/qa/298/if-f-x-x-2-f-x-3-10-and-f-1-2-what-is-f-1Tue, 22 Aug 2017 09:46:45 +0000Solve trinomial equation 8x2+2x-3=0
https://quickwriter.com/qa/299/solve-trinomial-equation-8x2-2x-3-0
Algebrahttps://quickwriter.com/qa/299/solve-trinomial-equation-8x2-2x-3-0Tue, 22 Aug 2017 09:46:44 +0000Exponential growth A=pe^kt
https://quickwriter.com/qa/279/exponential-growth-a-pe-kt
<h1>How to find time(t) in the equation pe^rt ?</h1>Algebrahttps://quickwriter.com/qa/279/exponential-growth-a-pe-ktFri, 18 Aug 2017 15:01:16 +0000Find total kinetic energy
https://quickwriter.com/qa/280/find-total-kinetic-energy
<pre><span style="font-family:arial,helvetica,sans-serif">At a room temperature of 20°C,the velocity of N2 molecules is 1050 mph.</span>
<span style="font-family:arial,helvetica,sans-serif">Find the tooal kinetic energy of 1 mol of N2</span></pre>Algebrahttps://quickwriter.com/qa/280/find-total-kinetic-energyFri, 18 Aug 2017 15:01:15 +0000Solve trinomial equation
https://quickwriter.com/qa/276/solve-trinomial-equation
<p>You need to get two binomials equal to zero </p><p>8x<sup>2</sup>+2x-3=0 </p>Algebrahttps://quickwriter.com/qa/276/solve-trinomial-equationFri, 18 Aug 2017 13:14:08 +0000equilibrium equation A + B = C
https://quickwriter.com/qa/277/equilibrium-equation-a-b-c
There is given the equilibrium constant k = [A][B]/[C]<br />
<br />
find the value of constant K<br />
<br />
There is given information: <br />
<br />
3C=D (Kc=7.9*10^-4)<br />
<br />
D=3A+3B (Kc= 6.7*10^-2)Algebrahttps://quickwriter.com/qa/277/equilibrium-equation-a-b-cFri, 18 Aug 2017 13:14:07 +0000What is area of the rectangle
https://quickwriter.com/qa/278/what-is-area-of-the-rectangle
What is area of the rectangle If the measurements are 3x^3 and 8x^4?Algebrahttps://quickwriter.com/qa/278/what-is-area-of-the-rectangleFri, 18 Aug 2017 13:14:05 +0000Find (4sin2x-1)sinx=0 for the interval [0,2pi)
https://quickwriter.com/qa/273/find-4sin2x-1-sinx-0-for-the-interval-0-2pi
Algebrahttps://quickwriter.com/qa/273/find-4sin2x-1-sinx-0-for-the-interval-0-2piFri, 18 Aug 2017 08:48:07 +0000Writing quadratic function in vertex form
https://quickwriter.com/qa/274/writing-quadratic-function-in-vertex-form
Help me get the answer for y = -3x^2 + 18x + 7 <br />
<br />
If vertex form is y = a(x - h)^2 + k.Algebrahttps://quickwriter.com/qa/274/writing-quadratic-function-in-vertex-formFri, 18 Aug 2017 08:48:06 +0000How to solve 2^x-6 = 7^2x
https://quickwriter.com/qa/275/how-to-solve-2-x-6-7-2x
I'm too bad at math! Save me and help to solve this task from homework<br />
<br />
Solve the following equation for x <br />
<br />
2^x-6 = 7^2x<br />
<br />
It's said that I should use base -10 logarithms.Algebrahttps://quickwriter.com/qa/275/how-to-solve-2-x-6-7-2xFri, 18 Aug 2017 08:48:04 +0000How to rewrite in vertex form?
https://quickwriter.com/qa/256/how-to-rewrite-in-vertex-form
<p>Help me rewrite y = (x + 3)<sup>2</sup> + (x + 4)<sup>2</sup> in vertex form!</p><p>Need it for my exam toworrow</p><p>thanks!</p>Algebrahttps://quickwriter.com/qa/256/how-to-rewrite-in-vertex-formWed, 16 Aug 2017 11:52:43 +0000What is reciprocal? And what will be reciprocal of the number 2?
https://quickwriter.com/qa/257/what-is-reciprocal-and-what-will-be-reciprocal-of-the-number
Sounds very complicated to me, please, explain it!Algebrahttps://quickwriter.com/qa/257/what-is-reciprocal-and-what-will-be-reciprocal-of-the-numberWed, 16 Aug 2017 11:52:39 +0000EXAMS SOON! - find the value of k - MATH help
https://quickwriter.com/qa/258/exams-soon-find-the-value-of-k-math-help
6x + 2y = 8<br />
−9x + ky = −11<br />
<br />
k=?Algebrahttps://quickwriter.com/qa/258/exams-soon-find-the-value-of-k-math-helpWed, 16 Aug 2017 11:52:37 +0000What is ab in a^2+b^2=4 and (a-b)^2=2
https://quickwriter.com/qa/255/what-is-ab-in-a-2-b-2-4-and-a-b-2-2
Algebrahttps://quickwriter.com/qa/255/what-is-ab-in-a-2-b-2-4-and-a-b-2-2Wed, 16 Aug 2017 11:18:50 +0000Find m in y= mx+b
https://quickwriter.com/qa/253/find-m-in-y-mx-b
Algebrahttps://quickwriter.com/qa/253/find-m-in-y-mx-bWed, 16 Aug 2017 11:18:48 +0000How many liters are produced?
https://quickwriter.com/qa/252/how-many-liters-are-produced
CO2 at STP is being produced from combustion of C4H10(23.2g). Find, how many liters of CO2 can be produced,Algebrahttps://quickwriter.com/qa/252/how-many-liters-are-producedWed, 16 Aug 2017 11:18:46 +0000Find surface area of a sphere
https://quickwriter.com/qa/251/find-surface-area-of-a-sphere
There is a hollowed hemispere, where<br />
<br />
Radius of outer sphere = 1.25cm<br />
<br />
Diameter of inner sphere = 1.86<br />
<br />
Find total surface area of the hemisphere<br />
<br />
Plz, help me get an answer quick!Algebrahttps://quickwriter.com/qa/251/find-surface-area-of-a-sphereWed, 16 Aug 2017 11:18:44 +0000MATH HELP! g(x) = 3(x-2)
https://quickwriter.com/qa/250/math-help-g-x-3-x-2
the function is g(x) = 3(x-2) and it's known that g(x)=6<br />
<br />
Help me find the value of xAlgebrahttps://quickwriter.com/qa/250/math-help-g-x-3-x-2Wed, 16 Aug 2017 11:18:43 +0000Find exponential function
https://quickwriter.com/qa/247/find-exponential-function
Which of the following equations expresses the exponential function passing through the point (2, 36)?<br />
<br />
f(x) = 4(3)x<br />
f(x) = 4(x)3<br />
f(x) = 6(3)x<br />
f(x) = 6(x)3Algebrahttps://quickwriter.com/qa/247/find-exponential-functionTue, 15 Aug 2017 07:58:05 +0000Help!! - get union and intersection of B={v|v>=1} C={v|v<8}
https://quickwriter.com/qa/245/help-get-union-and-intersection-of-b-v-v-1-c-v-v-8
Algebrahttps://quickwriter.com/qa/245/help-get-union-and-intersection-of-b-v-v-1-c-v-v-8Tue, 15 Aug 2017 07:49:58 +0000Help me find a root of equation
https://quickwriter.com/qa/244/help-me-find-a-root-of-equation
<h1>what is a root of x^2-5x-1=0</h1>Algebrahttps://quickwriter.com/qa/244/help-me-find-a-root-of-equationTue, 15 Aug 2017 07:49:55 +0000V=IR, help find potential difference
https://quickwriter.com/qa/243/v-ir-help-find-potential-difference
<p>If the current is 5 amps, the resistance = 10 ohms, then what is the potential difference between 2 points in el.circuit in volts?</p><p></p><h1> </h1>Algebrahttps://quickwriter.com/qa/243/v-ir-help-find-potential-differenceTue, 15 Aug 2017 07:49:54 +0000Help find arcsin(3/5) and (1/sqrt5)
https://quickwriter.com/qa/241/help-find-arcsin-3-5-and-1-sqrt5
Hello!<br />
Do you know how to get the value of arcsin(3/5) and arcsin(1/sqrt5) in terms of pi radian?Algebrahttps://quickwriter.com/qa/241/help-find-arcsin-3-5-and-1-sqrt5Tue, 15 Aug 2017 07:49:51 +0000Sum and difference Identities
https://quickwriter.com/qa/227/sum-and-difference-identities
I need to use sum and difference identities to find cos(11pi/12)<br />
<br />
I think, it can be expressed as<br />
<br />
cos(α+β)=cos(α)cos(β)−sin(α)sin(β)Algebrahttps://quickwriter.com/qa/227/sum-and-difference-identitiesThu, 10 Aug 2017 14:44:11 +0000write a polynomial function
https://quickwriter.com/qa/220/write-a-polynomial-function
How to express the following formula in a standard form of a polynomial function with zeros at 5, -4, and 1?Algebrahttps://quickwriter.com/qa/220/write-a-polynomial-functionThu, 10 Aug 2017 14:09:51 +0000Help to find a missing number!
https://quickwriter.com/qa/219/help-to-find-a-missing-number
What is the missing number in 9, ____, 6561, 43046721<br />
?Algebrahttps://quickwriter.com/qa/219/help-to-find-a-missing-numberThu, 10 Aug 2017 14:09:43 +0000What number is next?
https://quickwriter.com/qa/221/what-number-is-next
3 -6 12 4 20<br />
<br />
find the next number in this sequenceAlgebrahttps://quickwriter.com/qa/221/what-number-is-nextThu, 10 Aug 2017 14:09:36 +0000how to get Sin -1 (-1/2) in radians?
https://quickwriter.com/qa/217/how-to-get-sin-1-1-2-in-radians
Algebrahttps://quickwriter.com/qa/217/how-to-get-sin-1-1-2-in-radiansWed, 09 Aug 2017 13:14:40 +0000Evaluate sec(arc tan( 3/4) - ALGEBRA AID ASAP!
https://quickwriter.com/qa/216/evaluate-sec-arc-tan-3-4-algebra-aid-asap
Algebrahttps://quickwriter.com/qa/216/evaluate-sec-arc-tan-3-4-algebra-aid-asapWed, 09 Aug 2017 13:11:27 +0000Get 1/5 roots of 243(cos 260° + i sin 260°).
https://quickwriter.com/qa/214/get-1-5-roots-of-243-cos-260%C2%B0-i-sin-260%C2%B0
Algebrahttps://quickwriter.com/qa/214/get-1-5-roots-of-243-cos-260%C2%B0-i-sin-260%C2%B0Wed, 09 Aug 2017 13:10:31 +0000Solve for f(x)=2x-1
https://quickwriter.com/qa/213/solve-for-f-x-2x-1
Algebrahttps://quickwriter.com/qa/213/solve-for-f-x-2x-1Wed, 09 Aug 2017 13:10:28 +0000simplify 4√3
https://quickwriter.com/qa/211/simplify-4%E2%88%9A3
Algebrahttps://quickwriter.com/qa/211/simplify-4%E2%88%9A3Wed, 09 Aug 2017 13:10:22 +0000How many inches in 16.6 cm?
https://quickwriter.com/qa/209/how-many-inches-in-16-6-cm
Algebrahttps://quickwriter.com/qa/209/how-many-inches-in-16-6-cmWed, 09 Aug 2017 13:10:18 +0000Find differential - MATH HELP!!
https://quickwriter.com/qa/208/find-differential-math-help
Please, help me find a differential of these functions:<br />
<br />
a) y = e^(tan((pi)t)<br />
b) y = (9+ln(z))^1/2Algebrahttps://quickwriter.com/qa/208/find-differential-math-helpWed, 09 Aug 2017 13:10:16 +0000How many years in 520 weeks
https://quickwriter.com/qa/198/how-many-years-in-520-weeks
Algebrahttps://quickwriter.com/qa/198/how-many-years-in-520-weeksTue, 08 Aug 2017 13:26:29 +0000Find W in P = 2W + 2L
https://quickwriter.com/qa/200/find-w-in-p-2w-2l
Algebrahttps://quickwriter.com/qa/200/find-w-in-p-2w-2lTue, 08 Aug 2017 13:26:26 +0000describe y=x^2 to y=(x+2)^2-1?
https://quickwriter.com/qa/201/describe-y-x-2-to-y-x-2-2-1
<p><sup>a</sup>) down 1 unit and to the left 2 units</p><p>b) up 1 unit and to the left 2 units</p><p>c) down 1 unit and to the right 2 units </p><p>d) up 2 units and to the right 1 unit</p>Algebrahttps://quickwriter.com/qa/201/describe-y-x-2-to-y-x-2-2-1Tue, 08 Aug 2017 13:26:24 +0000value for cos(5pi/12)
https://quickwriter.com/qa/202/value-for-cos-5pi-12
Algebrahttps://quickwriter.com/qa/202/value-for-cos-5pi-12Tue, 08 Aug 2017 13:26:22 +0000Get a constant rate of change
https://quickwriter.com/qa/195/get-a-constant-rate-of-change
What is a constant rate of changen a task:<br />
<br />
When Stephen works overtime babysitting, he charges $50/8 hours and $31.25/5 hoursAlgebrahttps://quickwriter.com/qa/195/get-a-constant-rate-of-changeMon, 07 Aug 2017 12:30:18 +0000how long does it take?
https://quickwriter.com/qa/196/how-long-does-it-take
If you need to get to the place that is 60 miles away, how much time do you need? (If you move 40 miles/hour?Algebrahttps://quickwriter.com/qa/196/how-long-does-it-takeMon, 07 Aug 2017 12:30:14 +00002x-3y=6 Need to graph a line
https://quickwriter.com/qa/197/2x-3y-6-need-to-graph-a-line
Algebrahttps://quickwriter.com/qa/197/2x-3y-6-need-to-graph-a-lineMon, 07 Aug 2017 12:30:12 +0000How to solve 2x^2+3x-2=0
https://quickwriter.com/qa/181/how-to-solve-2x-2-3x-2-0
Algebrahttps://quickwriter.com/qa/181/how-to-solve-2x-2-3x-2-0Thu, 03 Aug 2017 11:20:43 +0000Find reducing agent in the formula
https://quickwriter.com/qa/182/find-reducing-agent-in-the-formula
Find reducing agent in the formula given:<br />
2Cr(OH)3+3OCl−+4OH−→2CrO4−2+3Cl−+5H2OAlgebrahttps://quickwriter.com/qa/182/find-reducing-agent-in-the-formulaThu, 03 Aug 2017 11:20:41 +0000Math AID! - 2-function questions
https://quickwriter.com/qa/183/math-aid-2-function-questions
<p> f(x)=9+x+x^2</p><p>The task is to:</p><ol><li>Find f(x + h) and simplify.</li><li>Find f(x+h)-f(x)/h and simplify.</li></ol>Algebrahttps://quickwriter.com/qa/183/math-aid-2-function-questionsThu, 03 Aug 2017 11:20:39 +0000Solve the problem ((x+y)^3)
https://quickwriter.com/qa/184/solve-the-problem-x-y-3
<h1><span style="font-family:arial,helvetica,sans-serif"><span style="font-size:14px">how to get an answer for (x+y)^3 ?</span></span></h1>Algebrahttps://quickwriter.com/qa/184/solve-the-problem-x-y-3Thu, 03 Aug 2017 11:20:37 +0000reduced fraction: .875
https://quickwriter.com/qa/174/reduced-fraction-875
Show me what is a reduced fraction of .875Algebrahttps://quickwriter.com/qa/174/reduced-fraction-875Thu, 03 Aug 2017 07:51:18 +0000