Tutors Answer Your Questions about Radicals (FREE)
Question 147444: Consider the equation 4x^2 – 4x + 5 = 0.
(i) Compute the discriminant, b2 – 4ac, and then state whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.
(ii) Use the quadratic formula to find the exact solutions of the equation.
Click here to see answer by Nate(3495)   |
Question 148091: the directions are: Simplify. Assume that varibles represnt positive real numbers.
can you please help me with. ^3 inside the square root symbol is (27y^3/z^4)
I blieve that the top number is 3y, but I don't know how you take the fourth power when the radital is rasied to a 3.
Click here to see answer by jim_thompson5910(13794) |
Question 148770: I am having a difficult time with Quadratic coefficients like:
trying to find x1_____ and x2_______
x2 = 1.5x + 0.5
a=__________ b=______________ c=______________
x2 = 4.41x
a=_______________ b=_______________ c=____________
I have six problems like this, I just can't wrap my brain around this.
Click here to see answer by stanbon(26297) |
Question 148951: I need to simplify: -5+ the square root of 3 divided by 1 - the square root of 2. I believe the first step would be to elimate the radical from the denomenator so I would multiply by square root of 2 on the bottom and top. From there I am stuck.
I thought it would be: -5+ square root of 3 times the square root of 2, divided by 1 - the square root of 2 time the square root of 2. Which equals: -5square root of 2 + square root of 6 divided by -1. Where am i going wrong?
Click here to see answer by Alan3354(6097)  |
Question 148973: My homework question is:
The diagonal of a square measures 10 inches. What is the length of the sides?
I understand the Pythagorean theorem should be used here. Which would be 10^2=a^2+b^2
10^2 = the hypotenuse and
a^2 and b^2 would be the legs
the solutions I have to choose from are:
10Square root of 2 inches
5 inches
5square root of 2 inches
and 5 square root of 3 inches
The only one that seems reasonable would be 5 inches but I can't solve to find the legs.
Please help
Click here to see answer by mangopeeler07(450) |
Question 148978: My homework question is:
Solve (z+2)^-2/3=4
This is what I did:
2^-z/3 + 2^-2/3 = 3
[1/(z+2)^2/3]^3 = 3^3
1/(z+2)^2 = 27
1/2^2+4z+4 = 27
1= 27(z^2+4z+4)
1= 27z^2+108z+108
-1 from each side
27z^2+108z+107=0
From here I think Im supposed to factor but dont know what to do?
Help?
Click here to see answer by stanbon(26297) |
Question 149079: installing a dishwasher. A plumber can install a dishwasher in 50 minutes. If the plumber brings his apprentice, the job takes 40 minutes. How long would it take the apprentice working alone to install the dishwasher?
Click here to see answer by solver91311(5072)  |
Question 149357: Two ranchers sold a herd of cattle and received as many dollars for each animal as there are animals in the herd. If there were two animals, they received $2 per animal; if there were three animals, they received $3 per animal; etc. As an example, if there were eight animals in the herd, the value of the herd would be $64 ($8 per animal times 8 animals in the herd). We’re told that they started with no more than 20 cattle.
With the money, they bought as many sheep as they could at $10 per head, and a goat with the remainder (less than $10). Finally they divided the animals between them. There was however, an odd number of sheep. So, one rancher took the extra sheep and the other the goat. The rancher who got the goat was given his friends new pocket knife as compensation. If this was to be an equal monetary division, what was the value of the pocketknife.
Click here to see answer by ankor@dixie-net.com(6693)  |
Question 149813: This problem is from a chapter dealing with Quadratic Equations and Inequalities
The members of a travelling club plan to share equally the cost of a $150,000 motor home. If they can find 10 more people to join and share the cost, the cost per person will decrease by $1,250. How many members are there originally in the club?
Click here to see answer by scott8148(3385)  |
|
Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960
|
