Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

Tutors Answer Your Questions about Functions (FREE)

Question 455723: Hi Thank you for stopping by!!!!!
Use the commutative law of addition law of addiion to write an equivalent expression 7c+d
Click here to see answer by edjones(8007)

Question 455729: Hi thank you so much for stopping by!!!!
Here is the problem: Use the distributive property to multiply 9(x+y)
Thank you!!!!!!
Click here to see answer by edjones(8007)

Question 455725: Hi Thank you so much for stopping by!!!!!!!!
Here is the problem:
Use the associative propertyof multiplication to write an equivalent expression
(Pr)t
Click here to see answer by edjones(8007)

Question 455791: Hi thank you for stopping by! Here is my question: Classify the number as prime, composite or neither 2
Click here to see answer by stanbon(75887)

Question 455790: Hello, thanks for stopping by! Here is my question
Find all the factors of 72
Click here to see answer by stanbon(75887)

Question 455793: Hi Thanks for stopping by!!! Here is my question: Perform the indicated operation

7/5 . 8/3
These problems are supposed to look like fractions, but I was not able to make them look like fractions I hope this looks right? Thanks for your help!
Click here to see answer by stanbon(75887)

Question 455794: Hi thanks for stopping by!
Here is my problem: Perform the indicated operation in simplest form.
1/4 + 1/4
Click here to see answer by richwmiller(17219)

Question 455794: Hi thanks for stopping by!
Here is my problem: Perform the indicated operation in simplest form.
1/4 + 1/4
Click here to see answer by richard1234(7193)

Question 455797: Hi Thank you for stopping by!!!
Here is my problem: Write a true sentence using either < or >
-9.271______-9.27
Click here to see answer by Alan3354(69443)

Question 455792: Hello, thank you for stopping by! Here is my question: Simplify

18 �� 24

Click here to see answer by Edwin McCravy(20056)

Question 455936: f(x)=(3-5x)^2...find f^-1(x)
heeeeelp
Click here to see answer by edjones(8007)

Question 455935: 1. The graph of the polynomial function P(x) is shown.

a. List the real zeros of P(x).
b. List the turning points of P(x).
c. State the left and right behavior of P(x).

2. $2,350 is invested in account paying 9% compounded semiannually. How much will the account be worth after 8 years? Show your work.

Click here to see answer by rfer(16322)

Question 455934: Use the graph of the function to estimate:
a. f(2)
b. f(�4)
c. All x such that f(x) = 0

3. For the following graph:

Click here to see answer by richard1234(7193)

Question 456140: Will you assist me in answering this question. State the degree of the following polynomial 9x^4y^3+6xy-3y.
Iam not sure where to begin or how to answer. Thank you
Click here to see answer by robertb(5830)

Question 456295: I don't understand this, could you please help?
Given the function H(w)=5w+ 8, find each of the following
H(9)=
H(-10)=
H(6.8)=
Click here to see answer by richwmiller(17219)

Question 456299: Sorry, that question was find the slope-intercept equation of the line that has the given characteristics:
Slope 3 and y-intercept (0,9)
The slope-intercept equation is y=
Click here to see answer by rfer(16322)

Question 456312: How would I find the domain of the following function?
g(x)= 8/8-7x
Click here to see answer by MathLover1(20850)

Question 456327: Can someone show me how to find the indicated outputs for f(x)= 4xsquared - 2x?
f(0)=
f(-1) =
f(2) =
Click here to see answer by Alan3354(69443)

Question 456372: Would I plug in the numbers below in place of the (w) to solve? How? Given the function H(w)=5w +8, find each of the following.
H(9)=
H(-10)=
H(6.8)=
Click here to see answer by Alan3354(69443)

Question 456417: Collect like terms.
11p + 4q -4p - 6q
Click here to see answer by rfer(16322)

Question 456480: Find the domain and range of:
f(x)=sqrt(x-2)
Click here to see answer by edjones(8007)

Question 456582: Find dy/dx of y = (x^3 - 2x)^(ln x) using the method of logarithmic differentiation
Click here to see answer by robertb(5830)

Question 456498: What is the domain of: ? And can you show me the steps?
Click here to see answer by richard1234(7193)

Question 456824: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y = mx+ b. (8,9); x + 6y =5
Click here to see answer by MathLover1(20850)

Question 456479: Write a cost function for the problem. Assume that the relationship is linear.
Fixed cost, $ 100; 5 items cost $ 1790 to produce

A)

C(x) = 676x + 100

B)

C(x) = 338x + 100

C)

C(x) = 338x + 1790

D)

C(x) = 676x + 1790

Click here to see answer by richard1234(7193)

Question 457394: Hi I did this problem and I was just wondering if a professional could over look this for me and let me know if it looks okay and if I am missing any steps or anything further! Thank you!!!!! :)
3x+2y=12 for y
3x + 2y = 12
2y = 12 - 3x
y = (12 -3x)/2

Click here to see answer by richwmiller(17219)

Question 457390: Hi, I did this problem but some how my Professor wants me to re-check this again. I did look over it and I did not see anything wrong with it just looking for a professional's opinion. Thanks very much!!!!!! :)
-8a/7 -2=4
-(8a/7) - 2 = 4
-(8a/7) = 4 + 2
-(8a/7) = 6
-8a = 6*7
-8a = 42
-a = 42/8
a = -42/8
a = -21/4

Click here to see answer by richwmiller(17219)

Question 457593: Find the domain of the function: g(x)= 7 over 6-7x
Click here to see answer by stanbon(75887)

Question 457668: Solve. 5/2x+1/4x=11/4+x
Click here to see answer by oberobic(2304)

Question 457917: find the domain and range of the function y=3(1/5)^x
Click here to see answer by stanbon(75887)

Question 457811: How many x-intercepts does the quadratic function y= x(squared)+5x+7 have?
Click here to see answer by richard1234(7193)

Question 458378: How do I solve?
2x/7 + 3x/2 =25/7
(4x+21x)/14=25/7
25x/14=25/7
x/2=1
x=2
Click here to see answer by pallavi(12)

Question 458390: How would I solve this?
The sum of a number and its reciprocal is 10/3. What is the number?
Click here to see answer by edjones(8007)

Question 458389: What is the 5 step method used to solve the following?
1/3 of a number is 5 less than 1/2 of the same number. What is that number?

I'm 46 and trying to remember this??? yikes :-) Thanks
Click here to see answer by edjones(8007)

Question 458388: n^-2/n^3

How do you simplify? Thanks for the help
Click here to see answer by edjones(8007)

Question 458387: How do you simplify?
x^2 y^3
I am 46 yrs old and refreshing my algebra, thanks for the help
Click here to see answer by edjones(8007)

Question 458385: How do you simplify?
(3/5)^-3
Click here to see answer by edjones(8007)

Question 458381: x/5 - x+2/3 = 1/15
How would I solve this?
Click here to see answer by bucky(2189)

Question 458391: How would I solve this?
An investment of $1500 paid interest of $45 during a certain period. How much interest would an investment of $2000 invested at the same rate for the same length of time pay?
Click here to see answer by stanbon(75887)

Question 458384: How would I simplify this?
a^-3 b^2
Click here to see answer by MathLover1(20850)

Question 458628: I'm having trouble getting the answer to this:
Given that f(x) = square root 5-x, find f( 3.3).
When I do it I get the 1.308 but I don't get the 1.7 squared. Any help would be appreciated.

A)
square root 1.7≈ 1.3038

B)
square root 5 ≈ 2.2361

C)
square root 8.3≈ 2.8810

D)square root 1.7≈ 0.85

Click here to see answer by jim_thompson5910(35256)

Question 458523: A piece of wire 16 inches long is to be cut in two parts. Each piece will be bent in the shape of a square. Find the expression that represents the total area of the two squares made with the pieces of wire as a function of the length, x, of one of the pieces.
Click here to see answer by ankor@dixie-net.com(22740)

Question 458748: The number of books in a small library increases according to the function B=3400e^0.04t, where t is measured in years. How many books will the library have after 8 years.
I know that this can all be done on my calculator im just not sure how.
answer: 4682
Thank you for the help.
Click here to see answer by josmiceli(19441)

Question 458813:
For the given function, find f(x+h)-f(x) �� h f(x) = x� - 8x A) 2x - 8 + h B) 2xh+h2-8h-16w/h C) 2x + h D) 2x + 8 + h My brain doesn't even know where to begin on this one.. tho for some reason my brain thinks the answer is b.. but doesn't know how?

Click here to see answer by Edwin McCravy(20056)

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