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

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Algebra: Evaluation of expressions, parentheses

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Question 200152: Find the corresponding y values for x= -2, -1, 0, 1, 2, 3 if y= x2-x-2.
Click here to see answer by jim_thompson5910(13794)

Question 200325: Evaluate the functions for the values of x given as 1,2,4,8,and 16. Rank in order from fastest to slowest the rate at which each function changes with increasing values of x.
f(x)=2x-5
f(x)=x^2-4x+3
f(x)=x^3+4x^2-2x-3
f(x)=7^x
f(x)=logx
Click here to see answer by Alan3354(6094)

Question 200339: 8+6x given x=5
Click here to see answer by jim_thompson5910(13794)

Question 200328: for the exponential function e^x and logarithmic function log x. graphically show the effect if x is halved. Include a table of values for all four functions.
Click here to see answer by solver91311(5072)

Question 200658: Please help me simplify this
1.(x-4)(x+4)
2. (2x^2+3x-1)+(7x^2-5x-3)
Click here to see answer by rfer(2688)

Question 200692: My problem has 3 parts solving for x: Please help
2 + 0.2(4.5) = ef
3.5 + (Log 6)(ef) = ad
ad + [-log 6 – log 1 – 2](ef) = x

Click here to see answer by Alan3354(6094)

Question 201002: x^2-6x+y6^2 x=-1 y=-3
Click here to see answer by RAY100(1637)

Question 201017: Rewrite the formula V=1/3BH to solve for h
Click here to see answer by nerdybill(2448)

Question 201115: Can someone please help me with this:
Evaluate the expression using order of operations.
9(4+7) - 10 / 4
Click here to see answer by rfer(2688)

Question 201112: Can someone please help me with this:
Evaluate the expression. Write answer without exponents.
81^1/2
a. 36
b. 4.5
c. 18
d. 9
Click here to see answer by rfer(2688)

Question 201209: Evaluate the expression, given x = -2, y = 3, and a = -4.
(-8 + x)(2 + y)(6 - a)
Click here to see answer by solver91311(5072)

Question 201234: (3^-1 a^4 b^-3)^-2 / (6 a^2 b^-1 c^-2) ^2
Click here to see answer by vleith(1977)

Question 202092: the expression a=3bsquared+2 can be written in words as the quantity a is equal to what?
Click here to see answer by RAY100(1637)

Question 202093: Find the value of y in the formula y=5a-3b+c, if a=12, b=4, and c=8?
Click here to see answer by PRMath(57)

Question 202097: Find the value of y in the formula y=5a-3b+c, if a=12, b=4, and c=8?
Click here to see answer by checkley77(7072)

Question 202097: Find the value of y in the formula y=5a-3b+c, if a=12, b=4, and c=8?
Click here to see answer by jim_thompson5910(13794)

Question 202091:
Click here to see answer by PRMath(57)

Question 202106: I just posted a question with the wrong email. the question is the first step i should take to solve the formula: 3times6squared-2 over 6 is?
Click here to see answer by jim_thompson5910(13794)

Question 202105: what is the first step i should take to solve the formula:3x6squared-2 o ------------ 6
Click here to see answer by jim_thompson5910(13794)

Question 202109: I need help solving: (1/8) (7m – 7) = (2/5) (4m – 4) + 8
Not sure if this is Pemdas or what.

Click here to see answer by jim_thompson5910(13794)

Question 202129: my question is: the area of a trapezoid is A=(a+b)h .there is a line under that with a 2 under it. If A=300, h=5, and b=30, what is the value of a?
Click here to see answer by rfer(2688)

Question 202124: If f(x)=3x^2-1,then find f(x+h). please help, thank-you.
Click here to see answer by solver91311(5072)

Question 202208: Need to double check this equation please:
Solve the following equation for a:
m = aP – w
+w +w
m+ w= aP
/p /p
a=(m+w)/p
Click here to see answer by solver91311(5072)

Question 202208: Need to double check this equation please:
Solve the following equation for a:
m = aP – w
+w +w
m+ w= aP
/p /p
a=(m+w)/p
Click here to see answer by rfer(2688)

Question 202436: (x + 2y)3

Click here to see answer by jim_thompson5910(13794)

Question 203168: Evaluate following expression
(1/5)y + (z/3) , y=1/2, z = 2
Click here to see answer by vleith(1977)

Question 203287: evaluate 13-6/117
first subtract the numerator
13-6=7
plug in the answer on top
7/117
since the answer is cannot be simplified any more.
The answer remains as is
Click here to see answer by apachemexican1(56)

Question 203651: 3 to the fifth power times 3 to the negative second power equals what?
Click here to see answer by Alan3354(6094)

Question 204350: x-[2x-(((2-x)/3) -1)]=3

Click here to see answer by RAY100(1637)

Question 204648: remove paraentheses and simplify the expression:
sqrt3 (sqrt3 +2)
Click here to see answer by lazi(15)

Question 204679: 256 expressed as a fractional %
Click here to see answer by stanbon(26296)

Question 204959: What is the difference of twice the number and 16 is equal to the quotient of three times the number and 8?
Click here to see answer by RAY100(1637)

Question 204567This question is from textbook
: Evaluate the expression (3/5)^3This question is from textbook

Click here to see answer by xshorty73(6)

Question 205432: This problem is from a worksheet.
Write as a mathematical expression using parentheses and brackets. Then evaluate: "Subtract 6 from 16. Divide this difference by 5. Multiply this quotient by 8."

Click here to see answer by rfer(2688)

Question 206327: 5+3(q-4)=2(q+1)
Click here to see answer by Alan3354(6094)

Question 206504: Could you help me solve this algebraic expression? 6a+8b. a=4/5, b=3/5

Click here to see answer by jim_thompson5910(13794)

Question 206504: Could you help me solve this algebraic expression? 6a+8b. a=4/5, b=3/5

Click here to see answer by rfer(2688)

Question 206532: 9+2(15+n)+7(n+5)
Click here to see answer by jim_thompson5910(13794)

Question 206537: Solve:
A. 5x-4(6+2x)<2(1-x)
B. x-9<3x-4 C. 12-/7-2m/=9 (// are suppose to be absolute value sign)
If all of these are solved the same way could you please just show me how to do one. Thank you!
Click here to see answer by jim_thompson5910(13794)

Question 206800: 2x-(4+-3) How do you use commutative and distributive on this expression
Click here to see answer by jim_thompson5910(13794)

Question 206912: Multiply
A.(2r-3s)(5r+7s)
B.(h^2+6h-7)(2h^2+7h+10)
Click here to see answer by dlam5(12)

Question 207132: write an expression that is equivalent to 3(x+2)-2(x+2)
Click here to see answer by jim_thompson5910(13794)

Question 207209This question is from textbook
: 3. 10 decreased by m
5. the product of 2 and q
11. the difference of 8 and a number This question is from textbook

Click here to see answer by rfer(2688)

Question 207223This question is from textbook
: 10 plus the quotient of a number and 15
the product of 2 and a number
what is the total cost of buying several shirts at $24.95 each ?
what is the amount of money in a bank containing only dimes ?This question is from textbook

Click here to see answer by rfer(2688)

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