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Tutors Answer Your Questions about Functions (FREE)
Question 168597: a junior College awarded 26 varsity letters in crew, 15 in swimming, and 16 in soccer. If awards went to 46 students and only 2 lettered in all sports how many students lettered in 2 of the 3 sports?: a junior College awarded 26 varsity letters in crew, 15 in swimming, and 16 in soccer. If awards went to 46 students and only 2 lettered in all sports how many students lettered in 2 of the 3 sports?
Click here to see answer by ankor@dixie-net.com(4489)  |
Question 168595: Suppose you are playing a word game with seven distinct letters. How many seven-letter words can there be? : Suppose you are playing a word game with seven distinct letters. How many seven-letter words can there be?
Click here to see answer by checkley77(3394) |
Question 168487: Can some one plese help me, I do not understand how to do this.. Thanks in advance.
Which of the following sets are functions from the set of the first components to the set of second components?
• { (b,a), (d,c), (a,e), (g,f) }
• { (a,b), (b,a), (c,c), (a,c) }
• { (b,a), (c,a), (b,b), (c,b) }
: Can some one plese help me, I do not understand how to do this.. Thanks in advance.
Which of the following sets are functions from the set of the first components to the set of second components?
• { (b,a), (d,c), (a,e), (g,f) }
• { (a,b), (b,a), (c,c), (a,c) }
• { (b,a), (c,a), (b,b), (c,b) }
Click here to see answer by stanbon(18743) |
Question 168404This question is from textbook
: Which of the following sets are functions from the set of the first components to the set of second components?
{(b,a),(d,c),(a,e),(g,f)}
{(a,b),(b,a),(c,c),(a,c)}
{(b,a),(c,a),(b,b),(c,b)}This question is from textbook
: Which of the following sets are functions from the set of the first components to the set of second components?
{(b,a),(d,c),(a,e),(g,f)}
{(a,b),(b,a),(c,c),(a,c)}
{(b,a),(c,a),(b,b),(c,b)}
Click here to see answer by Mathtut(333) |
Question 168389This question is from textbook algebra 1
: find the domain and range of each function: ex. #36 y=absolute value of x+4This question is from textbook algebra 1
: find the domain and range of each function: ex. #36 y=absolute value of x+4
Click here to see answer by stanbon(18743) |
Question 168358: WHAT IS THE DOMAIN AND RANGE OF (-6,-4), (-3,-1), (1,2) (2,4), (3,7): WHAT IS THE DOMAIN AND RANGE OF (-6,-4), (-3,-1), (1,2) (2,4), (3,7)
Click here to see answer by oscargut(666)  |
Question 168216: I have to fine the x and y intercept of f(x)=4x-1
I know that by setting f(0) I can get the y intercept (-1) but I am not sure how to find the x intercept. Can someone please explain how to get it. Thanks.: I have to fine the x and y intercept of f(x)=4x-1
I know that by setting f(0) I can get the y intercept (-1) but I am not sure how to find the x intercept. Can someone please explain how to get it. Thanks.
Click here to see answer by stanbon(18743) |
Question 168036: I need help understanding the following:
If (-1,-4) is a point on the graph of y=f(x), what point do you know is on the graph of y=f(1/2x)?
Would the answer be (-1/2,-2) since it is 1/2 of (-1,-4)?: I need help understanding the following:
If (-1,-4) is a point on the graph of y=f(x), what point do you know is on the graph of y=f(1/2x)?
Would the answer be (-1/2,-2) since it is 1/2 of (-1,-4)?
Click here to see answer by jojo14344(818) |
Question 168018: f(x)= f(x + delta(x)) - f(x)/ delta(x) how was this function derived?: f(x)= f(x + delta(x)) - f(x)/ delta(x) how was this function derived?
Click here to see answer by stanbon(18743) |
Question 167699: Perform the indicated operation. Let f(x)=x+1 and g(x)=x-1. Find f(g(x)).: Perform the indicated operation. Let f(x)=x+1 and g(x)=x-1. Find f(g(x)).
Click here to see answer by jim_thompson5910(9166) |
Question 167585: For f(x) = x2-5 and g(x) = sq rt of x, find h(x)=(fg)(x)
I get sq rt of x2-5. Is this correct?: For f(x) = x2-5 and g(x) = sq rt of x, find h(x)=(fg)(x)
I get sq rt of x2-5. Is this correct?
Click here to see answer by midwood_trail(225) |
Question 167617: Please help with the following:
For f(x)=x2-5 and g(x)=sq.rt x, find h(x)=(fg)(x).
(x2-5)(sqrt x)
h(x)=sq.rt. of x2-5
Is this right?: Please help with the following:
For f(x)=x2-5 and g(x)=sq.rt x, find h(x)=(fg)(x).
(x2-5)(sqrt x)
h(x)=sq.rt. of x2-5
Is this right?
Click here to see answer by partygirl1122(6) |
Question 167607: This is another form of problem that I am having trouble with. I would appreciate any help you can give me.
d varies inversely as w and directly as the square of v. If d=40 when w=6 and v=2, find d when w=9 and v=4.
d=kv2
40=k(4)2
40=k(16)
40/16=k
5/2=k: This is another form of problem that I am having trouble with. I would appreciate any help you can give me.
d varies inversely as w and directly as the square of v. If d=40 when w=6 and v=2, find d when w=9 and v=4.
d=kv2
40=k(4)2
40=k(16)
40/16=k
5/2=k
Click here to see answer by ankor@dixie-net.com(4489) |
Question 167616: I need help with the following question.
The width of a rectangular blanket is 2/3 of the length. Express the area of the blanket as a function of L.
Would the answer be A(L) = 2/3L2 (the L is square).: I need help with the following question.
The width of a rectangular blanket is 2/3 of the length. Express the area of the blanket as a function of L.
Would the answer be A(L) = 2/3L2 (the L is square).
Click here to see answer by nerdybill(1041) |
Question 167604: I have been trying to get this and am having trouble. is my answer correct?
If y varies inversley as x and y=1.5 when x=8, find y when x=20.
y=k/x
1.5 = k/20
(20) 1.5 = k
30 = k
: I have been trying to get this and am having trouble. is my answer correct?
If y varies inversley as x and y=1.5 when x=8, find y when x=20.
y=k/x
1.5 = k/20
(20) 1.5 = k
30 = k
Click here to see answer by Mathtut(333) |
Question 167541This question is from textbook
: Hi! i really need help with this problem, i've been going over my notes and i just dont know where to begin!
the problem reads:
State the domain in set-builder notation and interval notation
H(x)=3(x-2)^4/3
where (x-2)^4/3 is written INSIDE a radical
I would really appreciate it if someone could help me, thank you very much!This question is from textbook
: Hi! i really need help with this problem, i've been going over my notes and i just dont know where to begin!
the problem reads:
State the domain in set-builder notation and interval notation
H(x)=3(x-2)^4/3
where (x-2)^4/3 is written INSIDE a radical
I would really appreciate it if someone could help me, thank you very much!
Click here to see answer by stanbon(18743) |
Question 167521This question is from textbook Glencoe Mathematics Algebra 1
: Solve the equation for the given domain.
y = 2x + 3 for x = (-3, -2, -1, 1, 2,3)This question is from textbook Glencoe Mathematics Algebra 1
: Solve the equation for the given domain.
y = 2x + 3 for x = (-3, -2, -1, 1, 2,3)
Click here to see answer by partygirl1122(6) |
Question 167267: If the graph of the parabola y=kx^2+6x+k+8 is tangent to x-axis, then what is the positive value of k?: If the graph of the parabola y=kx^2+6x+k+8 is tangent to x-axis, then what is the positive value of k?
Click here to see answer by oscargut(666) |
Question 167259: Find the composite function of f(g(x)) when f(x)=2x-5/x-3 g(x)=3x-2/1-x: Find the composite function of f(g(x)) when f(x)=2x-5/x-3 g(x)=3x-2/1-x
Click here to see answer by aswathytony(47) |
Question 167262: A 6 inch and a 18 inch diameter poles are placed tangent to each other and bound together with wire. Find the length of the shortest wire that will go around them.: A 6 inch and a 18 inch diameter poles are placed tangent to each other and bound together with wire. Find the length of the shortest wire that will go around them.
Click here to see answer by Mathtut(333) |
Question 167250This question is from textbook Algebra 1
: Chanda is now four times old as her sister Suzane. Next year, Chanda's age will be three times Suzanne's age then. How old is each now?This question is from textbook Algebra 1
: Chanda is now four times old as her sister Suzane. Next year, Chanda's age will be three times Suzanne's age then. How old is each now?
Click here to see answer by ankor@dixie-net.com(4489) |
Question 166993: write an expression of the line containing the given point and perpendicular to the given line. Express the answer as y=mx+b. Simplify your answer.
(6,8);9x+y=2
y=-9x+2
y=1/9(x-x1)
y-y1= 1/9(x-x1)
y-8= 1/9(x-6)
This is where I get lost. I know that 1/9 is the slope, but when I multiply it by what is in the parenthesis and then subtract or add 8, I keep getting it wrong.
: write an expression of the line containing the given point and perpendicular to the given line. Express the answer as y=mx+b. Simplify your answer.
(6,8);9x+y=2
y=-9x+2
y=1/9(x-x1)
y-y1= 1/9(x-x1)
y-8= 1/9(x-6)
This is where I get lost. I know that 1/9 is the slope, but when I multiply it by what is in the parenthesis and then subtract or add 8, I keep getting it wrong.
Click here to see answer by Fombitz(1740) |
Question 166713: Here is my math problem:
Find the domain of the following
a) f(t) = log(t - 5)
Here solution that I found: All real numbers greater or equal to zero because a negative number is undefined. Is this answer correct?: Here is my math problem:
Find the domain of the following
a) f(t) = log(t - 5)
Here solution that I found: All real numbers greater or equal to zero because a negative number is undefined. Is this answer correct?
Click here to see answer by MRperkins(77) |
Question 166656: I missed the day of class when we covered domains in my class, and now i am hopelessly lost.
Please help me solve the following problems, and explain how you did it. I am not very good at math, so the more you can break it down and explain it, the better.
find the domain of the rational function:
h(t)=(t-5)/(t^2-25)
g(x)=(x^3-27)/(4x)
the problems are written in faction form, but I don't know how to do that with the computer, so I am not sure if what i have written means the same thing. It should read t-5 over t^2-25.
I would really appreciate the help!: I missed the day of class when we covered domains in my class, and now i am hopelessly lost.
Please help me solve the following problems, and explain how you did it. I am not very good at math, so the more you can break it down and explain it, the better.
find the domain of the rational function:
h(t)=(t-5)/(t^2-25)
g(x)=(x^3-27)/(4x)
the problems are written in faction form, but I don't know how to do that with the computer, so I am not sure if what i have written means the same thing. It should read t-5 over t^2-25.
I would really appreciate the help!
Click here to see answer by jim_thompson5910(9166) |
Question 166679: Given the equation x^3-2x^2+x-3=3, what are the possible roots?: Given the equation x^3-2x^2+x-3=3, what are the possible roots?
Click here to see answer by jim_thompson5910(9166) |
Question 166637: please help me solve this problem.
y=x2+4x
thats x squared.
i need it written in vertex form.: please help me solve this problem.
y=x2+4x
thats x squared.
i need it written in vertex form.
Click here to see answer by jim_thompson5910(9166) |
Question 166574: Find the domain of the following:
a) f(t)=log(t-5)
b) g(x)=5e^x
c) g(x)=ln(x+4)
d) g(t)=5^t
Explain how you obtained your answers: Find the domain of the following:
a) f(t)=log(t-5)
b) g(x)=5e^x
c) g(x)=ln(x+4)
d) g(t)=5^t
Explain how you obtained your answers
Click here to see answer by edjones(2391) |
Question 166584: Please help I'm having a problem with domains.
Find the domain of the following:
f(t)=log(t-5)
answer:
show your work or explain how you obtained your answer here:
Please help I'm sure of the rules for whole numbers. I think that the answer is
all real numbers but not sure how to prove my answer.
Thanks for all your help!: Please help I'm having a problem with domains.
Find the domain of the following:
f(t)=log(t-5)
answer:
show your work or explain how you obtained your answer here:
Please help I'm sure of the rules for whole numbers. I think that the answer is
all real numbers but not sure how to prove my answer.
Thanks for all your help!
Click here to see answer by edjones(2391) |
Question 166553: Please help.
Use the intermediate value theorem to determine whether g(x)=4x^3-3x+3 has a zero between -2 and -1.
Thanks: Please help.
Use the intermediate value theorem to determine whether g(x)=4x^3-3x+3 has a zero between -2 and -1.
Thanks
Click here to see answer by jim_thompson5910(9166) |
Question 166227This question is from textbook Algebra 1
: I really need your help, I am sort of confused.
We didn't go over an example like this in class, so I'm not so sure how i would do it, all it says is....
x=15
would i need to solve for x or something? Or would the answer be that it is a function because there is only one x and you don't know the y??This question is from textbook Algebra 1
: I really need your help, I am sort of confused.
We didn't go over an example like this in class, so I'm not so sure how i would do it, all it says is....
x=15
would i need to solve for x or something? Or would the answer be that it is a function because there is only one x and you don't know the y??
Click here to see answer by Mathtut(333) |
Question 166071: I need to solve both of these and am able to do the first one but not the second one.
#1 is $3/lb. = c/oz
I get $3/16 = 18.5 cents per oz.
This one I need help with below
5cm/min. = ? m/week
Any ideas??
Thanks: I need to solve both of these and am able to do the first one but not the second one.
#1 is $3/lb. = c/oz
I get $3/16 = 18.5 cents per oz.
This one I need help with below
5cm/min. = ? m/week
Any ideas??
Thanks
Click here to see answer by gonzo(434) |
Question 165993: Please help.
Solve for t
P=Irt
Would you just divide P by Ir, which will give you P/Ir=t?: Please help.
Solve for t
P=Irt
Would you just divide P by Ir, which will give you P/Ir=t?
Click here to see answer by jim_thompson5910(9166) |
Question 165871: can someone please help with this:
Write a cost function for the problem. Assume that the relationship is linear.
A moving firm charges a flat fee of $40 plus $35 per hour. Let C(x) be the cost in dollars of using the moving firm for x hours.
a. C(x) = 35x - 40
b. C(x) = 40x - 35
c. C(x) = 35x + 40
d. C(x) = 40x + 35: can someone please help with this:
Write a cost function for the problem. Assume that the relationship is linear.
A moving firm charges a flat fee of $40 plus $35 per hour. Let C(x) be the cost in dollars of using the moving firm for x hours.
a. C(x) = 35x - 40
b. C(x) = 40x - 35
c. C(x) = 35x + 40
d. C(x) = 40x + 35
Click here to see answer by stanbon(18743) |
Question 165631: Can someone please explain to me how to do this problem?
Find the domain of the rational expression.
f(x)=3x+1
_____
x-5
Thanks: Can someone please explain to me how to do this problem?
Find the domain of the rational expression.
f(x)=3x+1
_____
x-5
Thanks
Click here to see answer by jim_thompson5910(9166) |
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