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

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Question 123987: Please help solve this
4x^3(-2x^3)^4

Click here to see answer by johnnico6426(16) About Me 

Question 124062: hi
can you please help me with math
how do you solve 57=a-40
and tell me how you got there with the awnser

Click here to see answer by stanbon(75887) About Me 

Question 124246: A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter.
Click here to see answer by solver91311(24713) About Me 
Question 124246: A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter.
Click here to see answer by MathLover1(20850) About Me 

Question 124342: (Nine more than the product 4 and the number is 73). I am helping my niece and I am stumped, Help.....
Click here to see answer by bucky(2189) About Me 

Question 124705: The area of a square is 25 square meters. What is its perimeter?

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Question 124707: A concrete driveway measures 18 yards by 4 yards. The driveway will be 0.5 yards thick. (a) How many cubic yards of concrete will be needed? (b) How much will it cost if concrete is $3.50 per cubic yard?

Click here to see answer by checkley71(8403) About Me 

Question 124973: how step by step I can simplify this example
(2a)(5a)(6a)

Click here to see answer by chitra(359) About Me 

Question 125062: I am trying to write this without parentheses




%28u%5E2%2F-3v%29%5E2 %28%28-3%29y%5E2%2Fz%5E3%29%5E2

Click here to see answer by checkley71(8403) About Me 

Question 125065: I am trying to simplify the following
v%5E6u%5E2%2Fvu%5E4

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Question 125065: I am trying to simplify the following
v%5E6u%5E2%2Fvu%5E4

Click here to see answer by edjones(8007) About Me 

Question 125068: I am trying to simplify the following
ba%5E6%2Fb%5E5a%5E2

Click here to see answer by Fombitz(32388) About Me 

Question 125110: PLEASE HELP

The lenght of a rectangle is 1ft more then twice its width, and the area of the rectangle is 45ft^2. I am trying to find the diensions of the rectangle.
Length _____ft
Width _____ft
THANK YOU IN ADVANCE

Click here to see answer by checkley71(8403) About Me 

Question 125678: I am stuck with this one :
Q. Express in index form 1 divided by the square root of x
Q. Express in index form the square root to the power of 4 of x to the power of 5

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Question 125714: how to write a numerical expression for the phrase and simplify it
13 less than the difference between 8 and -5 is what?

Click here to see answer by stanbon(75887) About Me 

Question 125952: I'm very confused on how to work this D=RT problem. The problem is as follows "A bus leaves Miami for San Francisco traveling at a rate of 40 mph. Three hours later a car leaves Miami for San Francisco traveling at 55 mph. How far from Miama does the car overtake the bus?
My formula: 40x+55(x-3)=x
40x+55x-165=x
95x-165=x
I know this cannot be right, please help..

Click here to see answer by josmiceli(19441) About Me 

Question 125960: If the sides of a square are decreased by 2, then the area is decreased by 36. what were the dimensions of the original square?
Click here to see answer by MathLover1(20850) About Me 

Question 126173: I have this expression
square root of -144
which would be 12 12
break it out further it would be -3*4 and -3*4
so than it would be -4 square root 3?
These kind of problems play with your head. Is this correct?

Click here to see answer by stanbon(75887) About Me 

Question 126398: What is the difference in parentheses versus brackets and when do you use each with regards to interval notation?
Click here to see answer by ilana(307) About Me 
Question 126398: What is the difference in parentheses versus brackets and when do you use each with regards to interval notation?
Click here to see answer by stanbon(75887) About Me 

Question 126809: Can you help me solve this problem?
8+5
---
t

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Question 124830: what is 3+7x+x
Click here to see answer by apachemexican1(64) About Me 

Question 112628: 9x+7=5x-3
please explain.

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Question 112628: 9x+7=5x-3
please explain.

Click here to see answer by jim_thompson5910(35256) About Me 

Question 127004: find three consecutive integers such that 3 times the sqaure of the first exceeds the product of the other two by 25
Click here to see answer by solver91311(24713) About Me 

Question 127000: Factor:
x^2 +5x-36=

Click here to see answer by jim_thompson5910(35256) About Me 

Question 127001: Factor:
X^2+8x=0

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Question 127003: 2x^2=10-x
Click here to see answer by checkley71(8403) About Me 

Question 121406: -15+ 30 x 2
Click here to see answer by awang1996(50) About Me 

Question 127593: If y(x-1)=z then x=
NEED SOME ASSISTANCE, THANKS

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Question 127774: 23-5(3-x)=-4(x-2)

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Question 128292: if T=a+(n-1)d find t when a=16 n=11 and d=6
find t when a=20 n=6 and d=-2
please help me im stuck!!!

Click here to see answer by oscargut(2103) About Me 
Question 128292: if T=a+(n-1)d find t when a=16 n=11 and d=6
find t when a=20 n=6 and d=-2
please help me im stuck!!!

Click here to see answer by stanbon(75887) About Me 

Question 128289: hi!
if S= a over 1-r find s when a=10 and r=1/2
find s when a=4 and r=1/5

Click here to see answer by JessicaGill(40) About Me 

Question 128784: I need help understanding how to simplify expressions using fractions. I am not understanding the first step I need to do. Here is an example problem:
1/2(3a-8)+1/3(2a-9)

Click here to see answer by checkley71(8403) About Me 
Question 128784: I need help understanding how to simplify expressions using fractions. I am not understanding the first step I need to do. Here is an example problem:
1/2(3a-8)+1/3(2a-9)

Click here to see answer by edjones(8007) About Me 

Question 128838:
Simplify the exponential expression.
(.25xy)(-20x^-1y^-5)

Click here to see answer by checkley71(8403) About Me 

Question 116526: 10.3x -8 + 16.5 + 6.8x
Click here to see answer by apachemexican1(64) About Me 

Question 129486: I really just need to be refreshed on solving more difficult equations for what would be a good place for me to start brushing up.
Click here to see answer by idkweirdo(15) About Me 

Question 129689: 3x(x+1)
Click here to see answer by checkley71(8403) About Me 

Question 130515: in the fraction 3/*, * may not be substituted by which of the following sets?
a) {1,2,4} b) {-2, -3, -4} c) {1,3,7} d) { 0, 10, 20 } e) { 1.8, 4.3}
help me.......thanks in advance

Click here to see answer by scott8148(6628) About Me 

Question 131024: solve for x
4(x+4)=6(y-2)

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Question 131023:
solve for x
4(x+4)=6(y-2)

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Question 131022: solve for x
4(x+4)=6(y-2)

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Question 131310: If y=3 then y3(y3-y)y=? A.999 B.459 C.1099 D.648
Click here to see answer by solver91311(24713) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840