Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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 Algebra: Evaluation of expressions, parentheses Solvers Lessons Answers archive Quiz In Depth

 Question 574482: Use multiplying by 1 to find an expression equivalent to 19/10 with a denominator of 60c. Click here to see answer by jim_thompson5910(28536)

 Question 578014: Which expression has the same vaule as 649*5 a) (600*5)+(4*5)+(9*5) b) (6*5)+(4*5)+(9*5) c) (6*5)+(40*5)+(9*5) d) (600*5)+(40*5)+(9*5) Click here to see answer by KMST(1868)

 Question 578037: how do you expand this expression and I know that you use associative property but how do I use it in this sort of expression. please help I am very curious. thanks (3x-1)(2x+5) Click here to see answer by mananth(12270)
 Question 578037: how do you expand this expression and I know that you use associative property but how do I use it in this sort of expression. please help I am very curious. thanks (3x-1)(2x+5) Click here to see answer by solver91311(16877)
 Question 578037: how do you expand this expression and I know that you use associative property but how do I use it in this sort of expression. please help I am very curious. thanks (3x-1)(2x+5) Click here to see answer by KMST(1868)

 Question 578012: Which expression has the same value as 36*19 a) (30+19)*(6+19) b) (30*10)+(6*9) c) (30*19)+(6*19) d) (30+10)*(6+9) Click here to see answer by jim_thompson5910(28536)

 Question 578208: subtract 5 0ver x minus 2 over y Click here to see answer by dfrazzetto(277)

 Question 579975: this is a sample problem I am having trouble with: Write the given expressions with positive exponents: 5x(x^2-2)^-2 my email is ssuzi94@yahoo.com Click here to see answer by Edwin McCravy(8893)

 Question 580642: What would you get if you divide a half of a half of a half by a half of a fourth of a half? Click here to see answer by dfrazzetto(277)

 Question 584244: Solve for y. Write answer in form y = mx + b, where m and b are real numbers. 5x-3y+9=0 Click here to see answer by JBarnum(2044)

 Question 585218: 2) Determine whether the function rule models discrete or continuous data. A produce stand sells roasted peanuts for \$2.99 per pound. The function C(p) = 2.99p relates the total cost of the peanuts to the number of pounds purchased p. A) Discrete B) Continous 6) Choose the correct function rule for values in the table. x f(x) 2 –8 3 –12 4 –16 5 –20 A) f(x) = -4x B) f(x) =4x C) f(x) =x-4 D) f(x)=x+4) 7) Choose the correct function rule for values in the table.x f(x) X f(x) 3 7 4 8 5 9 6 10 A) f(x) =x-4 B) f(x)=4x C) f(x) =x+4 D) f(x)= -4-x 8) The length of a field in yards is a function f(n) of the length n in feet. Choose the function rule that models this situation. A) f(n)=1/3n B) f(n)=3n C) f(n)=12n D) f(n)=n/12 9)Choose the function rule that gives the total cost c(p) of p pounds of sugar if each pound costs \$0.59. A) c(p)=59p B)c(p)=p/0.59 C)c(p)=p+0.59c D)c(P)=0.59 10) Choose the equation of the direct variation that includes the point (9, 12). A) Y= -1/1/3x B) y=-1/12x C) y=1/1/3x D) y=-3/4x pleae help me...it's my QUIZ :(( Click here to see answer by jim_thompson5910(28536)

 Question 586505: Nine More than half Amy's age is 17. How old is Amy? A 6 B 8 C 10 D 16 Click here to see answer by tw23279(14)

 Question 587420: how to know when a number is less than? Click here to see answer by stanbon(57290)

 Question 588032: A company makes rectangular shaped bird cages with height b inches and square bottoms. The volume of these cages is given by the function V=b^3-6b^2+9b Find an expression for the length of each side of the square bottom by factoring the expression on the right side of the function. Use the function to find the volume of a cage with a height of 18 inches. Use the accompanying graph to estimate the height of a cage for which the volume is 20,000 cubic inches. the line graph display cannot be displayed. But the volume is 50 (in thousand of cubic inches) the height of the cage 10 (in inches) Click here to see answer by josmiceli(9668)

 Question 588030: A company makes rectangular shaped bird cages with height b inches and square bottoms. The volume of these cages is given by the function Find an expression for the length of each side of the square bottom by factoring the expression on the right side of the function. Use the function to find the volume of a cage with a height of 18 inches. Use the accompanying graph to estimate the height of a cage for which the volume is 20,000 cubic inches. the line graph display cannot be displayed. But the volume is 50 (in thousand of cubic inches) the height of the cage 10 (in inches) Click here to see answer by Alan3354(30993)

 Question 588752: Determine which, if any, of the three statements are equivalent. I) If it is sunny and the pool is open, then I will go swimming. II) If I do not go swimming, then it is not the case that it is sunny or the pool is open. III) It is sunny and the pool is open, or I will go swimming. Click here to see answer by richwmiller(9135)

 Question 588933: I need help with learning how to simplify a rational expression... 2x^+2x^2-4x ____________ x^3+2x^2-3x Click here to see answer by stanbon(57290)

 Question 590804: 2x + 3y + z is this statement an expression or an equation Click here to see answer by jim_thompson5910(28536)