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

Tutors Answer Your Questions about expressions (FREE)

Question 547393: what is x-(-3)+8-2x-6 and show steps
Click here to see answer by rfer(12662)

Question 547663: 3[(1)/(5)+(1)/(3)]
Click here to see answer by Maths68(1474)

Question 548345: Write and simplify an expression for the perimeter of the figure shown. It is a triangle and the three sides are x + 4, 3x + 3, and x - 3
Click here to see answer by stanbon(57361)

Question 548598: -(z+41)find an equivalent expression without parenthesis
Click here to see answer by mananth(12270)

Question 548926: Add:
Click here to see answer by mathie123(224)

Question 548807: using the #'s 6, 4,3,2,1 only once to equal 11 how to solve this equation:
x ( l - s) + c \ m = 11
Click here to see answer by Alan3354(30993)

Question 549052: X^2+14x+48 WHAT IS THE EXPRESSION IN FACTORED FORM
Click here to see answer by Alan3354(30993)

Question 549296: Solve . Please show all of your work
Click here to see answer by JBarnum(2044)

Question 549718: A model of a park was built on a scale of 1.5 centimeters to 50 meters. if the distance between two trees in the park is 150 meters, what is the distance on the model?
Click here to see answer by Theo(3464)

Question 549717: which algebraic equation best describes the total growth (T) in height of pine trees over a 3-year period, if g equals the rate of growth in centimeters per year?
Click here to see answer by Theo(3464)

Question 549983: which of the following is a rational number?
a.√2
b.√pi(3.14)
c.√7
d.√5/√25
e.√64/√49
my act aNSWER key has e, i'm not sure if its right though and how it is a rational number. so an explanation would be much appreciated.
Click here to see answer by scott8148(6628)

Question 550278: 90.) Find the value of m if 6m = 14m – 16.
Click here to see answer by oberobic(2304)

Question 550276: 78.) Which of the following expressions is equal to 6 – 4(x + 3)?
A. 4x + 3
B. 4x - 9
C. -4x + 9
D. -4x - 6

Click here to see answer by oberobic(2304)

Question 550569: How do I get the answer for -30/t(t+4)^2, for t=-6?
Click here to see answer by nerdybill(6962)

Question 550795: kindly evaluate (-8)5(1)8
Click here to see answer by mathstutor494(95)

Question 551094: Insert parentheses to make each statement true.
1. 8+12/4*5=1
2. 6*3+1+1=25
Click here to see answer by jim_thompson5910(28595)

Question 551190: how do I get the answer to -30/t(t+4)^2, for t = -6
Click here to see answer by jim_thompson5910(28595)

Question 551267: HI
I am trying to prepare myself for math classes, and I came over this exercise which I do not know how to solve. The chapter is about simplifying algebraic expressions, and I do understand the basics, but not when the questions are a bit more complicated .
I am suppose to simplify this:
(-5z)(2z^2)
thank you in advance
Click here to see answer by Alan3354(30993)

Question 551317: I'm not sure how to do this so could you please help?
Solve 9 -(3-x) = 14
Click here to see answer by mathstutor458(57)

Question 551317: I'm not sure how to do this so could you please help?
Solve 9 -(3-x) = 14
Click here to see answer by MathTherapy(1425)

Question 551840: Express the ratio of 6:14 as a percent.
Click here to see answer by jim_thompson5910(28595)

Question 551784: Short Answer: Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression. Express answers with positive exponents (32x^-5y/128x^-5y^4)^3
(32x^-5y)^3
-------------
(128x^-5y^4)
Equation has parentheses around entire problem not around both equation only around entire problem.

Click here to see answer by ankor@dixie-net.com(15656)

Question 552016: If f(x) = x + 4, find f(3). (1 point)
1
7
–1
12
Click here to see answer by solver91311(16897)

Question 552425: Please help me find the product: (b+5)(6b-7)
Click here to see answer by jim_thompson5910(28595)

Question 552425: Please help me find the product: (b+5)(6b-7)
Click here to see answer by stanbon(57361)

Question 552380: evaluate. please show all of your work
-6/6x-x^2+(-2 for x=4
Click here to see answer by JBarnum(2044)

Question 552619: insert grouping symbols to make statement true
12- 2 squared ÷5= 20
Click here to see answer by fcabanski(874)

Question 552627: How can I rewrite the expression using parentheses to get the given value of 28-3x3+4 with the value being 7?
Click here to see answer by jim_thompson5910(28595)

Question 552701: How would I solve (b^4)^6*(b^2)^4
I know the answer is "b to the 32" I need to know how to get there.
Click here to see answer by Alan3354(30993)

Question 552701: How would I solve (b^4)^6*(b^2)^4
I know the answer is "b to the 32" I need to know how to get there.
Click here to see answer by Earlsdon(6287)

Question 552746: Please help:::WHICH EXPRESSION SHOWS 3(X PLUS Y)IN ITS SIMPLIFIED FORM?
Click here to see answer by jim_thompson5910(28595)

Question 551948: Rewrite expression without parentheses. Simplify. 22-(60x-41)
Evaluate expression. 1.7-(1.6-20.2)

Click here to see answer by jim_thompson5910(28595)

Question 552511: Evaluate the two given expressions.
1. ^6C^3
2. ^7P^2
Click here to see answer by jim_thompson5910(28595)

Question 551720: Evaluate -10/5x-x^2+5 for x= -2
Click here to see answer by jim_thompson5910(28595)

Question 552843: evaluate and, if possible simplify.
12/-x-3 for x=-3
Click here to see answer by jim_thompson5910(28595)

Question 552837: simplify. follow the order of operation
-48/(7-9)^3-2[1-5(2-6)+3^2]
Click here to see answer by stanbon(57361)

Question 552890: -5^2
Click here to see answer by jim_thompson5910(28595)

Question 554419: what is the answer of
1.(x/2+y/3)(x/2-y/3)
2. 8m-{-[-(-2mn+n)+(-4n+6m)]}
3.-{-[y+(-2x+5y)-3x]+9y-6x}
Click here to see answer by Maths68(1474)

Question 554594: Solve the system
{ y = x + -2
y = -2x + 7
x = [ ]
y = [ ]
Click here to see answer by stanbon(57361)

Question 554591: Find three ordered pairs that satisfy the equation.
y = 5x + 6
gruffin@comcast.net

Click here to see answer by stanbon(57361)

Question 554843: Please help me solve this problem. -6+5(2x-8)
Click here to see answer by jim_thompson5910(28595)

Question 555017: ((2y^2-7y-15)/(3y^2-8y-3)) X ((9y^2-1)/(4y^2-9)) / ((y^2+3y-10)/(2y^2-9y+9))
It say to complete it but not to multiply factors.
And also everything is squared, the -7y or whatever after the ^2 is not included in the exponent.
Click here to see answer by Theo(3464)

Question 555275: simplify -5^2
Click here to see answer by jim_thompson5910(28595)

Question 555493: (x squared + 5y) squared
Click here to see answer by edjones(7569)

Question 555829: 8x + 5y - 4z + 9y -3x + 13z =
Click here to see answer by jim_thompson5910(28595)

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