Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 136855: Given the function k describe by k(x) = x + 16 Find each of the following:
k(0)=
k(-15)=
k(-20)=
Help there are 3 more questions, but I am hoping to do them myself after someone explains to me how it is done please.
Click here to see answer by vleith(2983)  |
Question 136860: 5) Find the equations for the horizontal and vertical asymptotes of the following. Type none if the function does not have an asymptote.
a)f(x)=2x+1/x-4
Answer:
Horizontal:
Vertical:
b) g(x)=3X/X^2+4
Answer:
Horizontal:
Vertical:
Click here to see answer by solver91311(24713)  |
Question 136849: Please help me,
The Italian scientist Galileo dropped two balls of different mass from the Leaning Tower of Pisa and found they reached the ground at the same time. If the balls were dropped from a height to 60 feet, how many seconds did it take the balls to hit the ground?
Please help me understand quadractic eqaution word problems and how to do this.!!
thanks,
desperate algebra student..
Click here to see answer by vleith(2983) |
Question 136875: Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each method? Which method do you like best? Why? What circumstances would cause you to use a different method?
Can someone please help me answer this question, so I myself can understand it? I am soooo bad at this I am terrible and I am never going to understand things when i cannot understand the explaination?!! Hope someone can help me soon!!
Click here to see answer by stanbon(75887) |
Question 136868: The function l=-0.02x^2+60x models the income earned (i), in dollars, by selling units of product is:
What are the greatest possible income?
How many unit must be sold in order to have the greatest income?
How many unit must be sold to generte an income of $35,000?
HELP i have no clue how to do this!
Click here to see answer by stanbon(75887) |
Question 136991: 4. The line y=0.15x + 0.79
represents an estimate of the average cost of gasoline for each year. The line
0.11x - y= -0.85
estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006).
a) Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your reasoning.
b) Use the equations of the lines to determine if they are parallel. What did you find?
c) Did your answer to part b confirm your expectation in part a?
Can someone please help me with these questions...
Click here to see answer by stanbon(75887) |
Question 137158: I am trying to solve this quadratic growth question. A town experiences quadratic growth of the form (P=7t^2 + Po) where (t) is the time in years from 2010. (Po) is the population , and I have determined that to be 7806. How do I make this into a quadratic equation and then factor it? thank you in advance for your help?
Click here to see answer by stanbon(75887) |
Question 137176: This is homework.
Pay attention to th units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile= 5,280 feet for your conversions. Many people know that the weight of an object varies on different planets, but did you know that the weight of an earth also varies according to the elevation of the object? In particular, the weight of an object follows this equation:w+Cr^-2. where C is a constant, and r is the distance that the object is from the center of the earth.
a. Solve the equation w=Cr^-2 for r.
b. Suppose that an object is 100 pounds when it is at sea level. Find the value of C that makes the equation true. (Sea level is 3,963 miles from the center of the earth.)
c. Use the value of C you found in the previous question to determine how much the objec would weigh in
i. Death Valley (282 feet below sea level)
ii. The top o Mt McKinley (20,430 feet above sea level)
Thanks,
MT
Click here to see answer by stanbon(75887) |
Question 137100: what is the value of x when
xcube + 3x = 47
The question says that it has a solution between 3 and 4. what does this mean.
what should i take the value of a?
i have got the answer 5.52 and -8.52. is it right
What would happen if the question was like below
4xcube + 3x=20
what should i take the value of a is it 4?? and what should i do with the cube? does it affects the formula
Click here to see answer by vleith(2983) |
Question 137253: What is the solution to x^2-2x+5=0 when you use complex numbers. I always end up with 1-2i and 1+2i but when I put those into the equation to check it, it doesn't come out to be 0. Is that because it is a complex number and there truly is no solution? This question did not come from a textbook but from a worksheet from the tescher. The text we use is the Glencoe Algebra 2 text. It didn't help when I tried to follow the examples given.
Click here to see answer by stanbon(75887) |
Question 137334: Solve the problem. The profit that the vendor makes per day by selling x pretzles is given by the function P(x) = -0.002x squared + 1.2x - 300. Find the number of pretzels that must be sold to maximize profit.
Click here to see answer by stanbon(75887) |
Question 137457: I would really appreciate it if I could get some help on this question, thanks.
The path of a falling object is given by the function s=-16t^2+vo+s0 where vo represents the initial velocity in ft/sec and so represents the initial height in feet. Also, s represents the height in feet of the object at any time,t,which is measured in seconds.
If a rock is thrown upward with the initial velocity of 40ft per second from the top of a 30ft building.
s= -16t^2+vot+so I figured out that much, then it asks after how many seconds will the graph reach maximum height?What is the maximum height? I just need help setting up the equation to solve for height.... The question comes from my online algebra class at aiu. HELP PLEASE. thanks, alaska
Click here to see answer by Earlsdon(6294) |
Question 137456: I would really appreciate it if I could get some help on this question, thanks.
The path of a falling object is given by the function s=-16t^2+vo+s0 where vo represents the initial velocity in ft/sec and so represents the initial height in feet. Also, s represents the height in feet of the object at any time,t,which is measured in seconds.
If a rock is thrown upward with the initial velocity of 40ft per second from the top of a 30ft building.
s= -16t^2+vot+so I figured out that much, then it asks after how many seconds will the graph reach maximum height? I just need help setting up the equation to solve for height....The question comes from my online algebra class at aiu. HELP PLEASE. thanks, alaska
Click here to see answer by scott8148(6628)  |
Question 137491: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent; and the equations as dependent or independent.
3u+v=18
3u=v+30
Help what is up with th u and v I do not understand.
Click here to see answer by stanbon(75887) |
Question 137492: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent; and the equations as dependent or independent.
y= -x-12
8x-7y=9
Again can someone help me with this one. This class is getting so much harder than I ever expected.
Click here to see answer by stanbon(75887) |
Question 137489: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent; and the equations as dependent or independent.
x+y=5
x-y=-1
What is the solution of the system of equations.
Please help me with this.
Click here to see answer by oscargut(2103)  |
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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, 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