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 40046: result in simplest form

3 1/3

divide

2 2/3
Click here to see answer by fractalier(1804)

Question 40045: Evaluate. – | –2 |
Click here to see answer by fractalier(1804)

Question 40043:
2)
Evaluate. | –7 | + | 13 |

i thought it was
–20 but im wrong

Click here to see answer by fractalier(1804)

Question 40042:
3) Evaluate. 81 ÷ 9 – 16 ÷ 8
i thought was 8 but i was wrong.
Click here to see answer by fractalier(1804)

Question 39941: i dont understand this thank you verymu44ch

[(2+3) power of 2 -4.5}+7
Click here to see answer by fractalier(1804)

Question 40156: Find the median.
20 15 17 25 22

Click here to see answer by Nate(3495)

Question 40153:

Write the following phrase using symbols.
m decreased by by 4

Click here to see answer by stanbon(26291)

Question 40266: [2+3) power 2 - 3 .5 +7
thank you sarah
Click here to see answer by fractalier(1804)

Question 40184:

im lost on how to evalvaute.
/ 11 / + / -11 /
But these / are straight lines
Click here to see answer by fractalier(1804)

Question 40369: Simplify (be sure to rationalize all denominators)
11. 3/[SQRT(5) - 2]
I tried and got this for my answer, 1/-2/3+5/9. This isn't right and I dont know exactly how to go about finding the correct answer. Thank you!
Click here to see answer by Nate(3495)

Question 40714: Translate the following into inequalities. Let x represent the number.
2 time a number, increased by 28, is less than or equal to 6 yimes that number.

Match each inequality on the right with a statement on the left.
Click here to see answer by tutorcecilia(2042)

Question 35089: Simplify the following algebraic expression.
-(3a^6b^4)
Click here to see answer by fractalier(1804)

Question 41292: Can someone help me with this problem?
(Round to the nearest hundredth)
7 L = ____________ qt
Thanks,
Sher
Click here to see answer by zeynep(43)

Question 41319: 8(3-m)+7=47
solve
show work
Click here to see answer by vidhyak(78)

Question 41426: Can someone help me solve this problem?
What units in the metric system would you use to measure each of the following quantities?
(a) Distance from Los Angeles to New York
(b) Your waist measurement
(c) Width of a hair
(d) Your height
Thank you,
Lyn
Click here to see answer by venugopalramana(3286)

Question 41424: find the exact value of tan 15 degrees WITHOUT USING TABLES OR A CALCULATOR. be sure to show your work.
Click here to see answer by zeynep(43)

Question 41423: find the exact value of cos 105 degrees WITHOUT USING TABLES OR A CALCULATOR. be sure to show your work.
Click here to see answer by venugopalramana(3286)

Question 41421: prove that sin^2 x(1 + cot^2x) = 1. Prove this for ANY angle.
Click here to see answer by venugopalramana(3286)

Question 41422: prove that tan x(cot x + tan x) = sec^2 x. Prove this for ANY angle.
Click here to see answer by venugopalramana(3286)

Question 41419: prove that sin^2 x(1 + cot^2x) = 1. Prove this for ANY angle.
Click here to see answer by venugopalramana(3286)

Question 41455: solve
(-6x^4+3x^2-16)+ (4x^2+4x-7)
please show work
Click here to see answer by zeynep(43)

Question 41460: 18=9-(3-x)
show work
Click here to see answer by tran3209(100)

Question 41460: 18=9-(3-x)
show work
Click here to see answer by zeynep(43)

Question 41458: a+7-2a=14+7a-10
show work
Click here to see answer by tran3209(100)

Question 41457: (x^2+2)^2
please help
show work
Click here to see answer by tran3209(100)

Question 25212: 2a+3a-11.4=6.8
Click here to see answer by tran3209(100)

Question 20767: p=3.47,q=0.28,r=11.9
2p/q+r=
Click here to see answer by tran3209(100)

Question 41475:
Click here to see answer by tutorcecilia(2042)

Question 18643: [(5n-4)+(3n-7n)]-1
Click here to see answer by tran3209(100)

Question 16914: Evaluate each expression
9 cubed
Click here to see answer by tran3209(100)

Question 41459: 18=9-(3-x)
show work
Click here to see answer by vidhyak(78)

Question 41748: Evaluate the expression: 3.2-3/5
I am lost with the "-" sign
Thanks for your help
Click here to see answer by nik_consult(24)

Question 41990: Help Solving expressions:
I did this to solve
5+(2)^2 /(3-1)*3
5+4 / 2*3
which leaves
9/6
I am confused with the PEMDAS.
Click here to see answer by checkley71(8405)

Question 42083: 9(x-6)/12(x-6)(x+3)
Click here to see answer by fractalier(1804)

Question 42084: Evaluate 3x-7y when x=-2and y=-3
please explain
Click here to see answer by Earlsdon(4900)

Question 42085: Perform the operation in this expression

Click here to see answer by PaulAllen65270(19)

Question 42368: (Show your work)
Evaluate: xy + yz + xyz
if x = 1/3
y = 24
and z = 1/8.
Thanks from Precious
Click here to see answer by psbhowmick(456)

Question 42383: Please help me with this problem (show your work)
( 7 x 10^3) x (8 x 10 ^-9)
Click here to see answer by Nate(3495)

Question 42377: In which year did the greatest percent increase in filings occur?

Click here to see answer by AnlytcPhil(958)

Question 42466:
(x+y)^2 + (x+3y)^2 - 10(x+3y) - 4(x+y) +29 = 0 , find the value from next expresion

2y^2 + xy
Click here to see answer by rapaljer(3622)

Question 42465: 2 2
(x+y) + (x+3y) - 10(x+3y) - 4(x+y) +29 = 0 , find the value from next expresion
2
2y + xy
This problem is not from textbook.
Click here to see answer by rapaljer(3622)

Question 42518: Solve for x. 3x – 2y = 6
Click here to see answer by Nate(3495)

Question 42514: Solve x over 6 + 3 = 0
Click here to see answer by nik_consult(24)

Question 42514: Solve x over 6 + 3 = 0
Click here to see answer by Nate(3495)

Question 42636This question is from textbook Elementary and Intermediate Algebra
: This question is from textbook Elementary and Intermediate Algebra

Click here to see answer by rapaljer(3622)

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