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checkley77 answered: 12560 problems
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Equations/154726: I don't know how to solve this equation.
Use factoring to solve each equation for real values of the variable.
Please help me solve this problem: 6p + p^1/2 - 1 = 0 1 solutions
Answer 113936 by checkley77(12569) on 2008-09-02 19:21:59 (Show Source):
You can put this solution on YOUR website!6p+p^1/2-1=0
(3SQRTP-1)(2SQRTP+1)=0
3SQRTP-1=0
3SQRTP=1 [SQUARE BOTH SIDES.]
9P=1
P=1/9 ANSWER.
2SQRTP+1=0
2SQRTP=-1 [SQUARE BOTH SIDES]
4P=1
P=1/4 ANSWER.
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Equations/154723: Not sure on how to solve this.
Use factoring to solve each equation for real values of the variable.
Please help me solve this problem: x - 13x^1/2 + 12 = 0 1 solutions
Answer 113932 by checkley77(12569) on 2008-09-02 19:12:28 (Show Source):
You can put this solution on YOUR website!x-13x^1/2+12=0
(SQRTX-12)(SQRTX-1)=0
SQRTX=12 SQUARE BOTH SIDES.
X=12^2
X=144 ANSWER.
SQRTX-1=0
SQRTX=1 SQUARE BOTH SIDES.
X=1^2
X=1 ANSWER.
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Rate-of-work-word-problems/154708: Arthur can arrange a number of books in the bookshelf in x hours. Charlie can do the same job in y hours. If they work together,they will finish the same job in 6 hours. Arthur's rate is one-third of Charlie's. Find the number of hours each can do the job alone? 1 solutions
Answer 113924 by checkley77(12569) on 2008-09-02 18:56:59 (Show Source):
You can put this solution on YOUR website!XY/(X+Y)=6
Y=X/3
(X*X/3)/(X+X/3)=6
X^2/3=6(3X+X)/3
X^2/3=2*4X
X^2=3*8X
X^2=24X
X^2-24X=0
X(X-24)=0
X=24 HOURS FOR ARTHUR WORKING ALONE.
24/3=8 HOURS FOR CHARLIE WORKING ALONE.
PROOF:
24*8/(24+8)=6
192/32=6
6=6
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Exponents-negative-and-fractional/154657: This question is from textbook Algebra structure and method book 1
can you please help me solve this problem and show all work using the 5-step method: (((A sailboat travels 20 miles downstream in 3 hours. It returns in 4 hours. Find the speed of the sailboat in still water and the rate of the current.))) 1 solutions
Answer 113919 by checkley77(12569) on 2008-09-02 18:42:37 (Show Source):
You can put this solution on YOUR website!DISTANCE=RATE*TIME OR DISTANCE/TIME=RATE
20/3=6.666 WITH THE CURRENT.
20/4=5 AGAINST THE CURRENT.
(6.666-5)/2=1.666/2=.833MPH IS THE SPEED OF THE CURRENT.
PROOF:
6.666-.833=5.833 SPEED OF THE SAIL BOAT.
5+.833=5.833 DITTO.
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real-numbers/154696: This question is from textbook Algebra1/2 An Incremental Development
How do you:
Write the six-digit number that has the digit 4 in the thousands' place, with each of the remaining digits being 6.
Write the seven-digit number that has the digit 3 in the millions' place and the digit 7 in the hundrends' place, with each of the remaining digits being 6.
A number has eight digits. Every digit is 9 except the ten millions' digit, which is 3, the ten-thousands' digit, which is 5, and the units' digit, which is 2. Use the digits to write the number.
Use the words to write each number:
90,807,060
32,000,000,652
3,250,009,111
6,040,000
99,019,900 1 solutions
Answer 113912 by checkley77(12569) on 2008-09-02 18:27:18 (Show Source):
You can put this solution on YOUR website!664,666
3,666,766
39,959,992
------------------------------
90,807,060 NINETY MILLION EIGHT HUNDRED & SEVEN THOUSAND AND SIXTY
32,000,000,652 THIRTY TWO MILLION SIX HUNDRED FIFTY TWO
3,250,009,111 THREE BILLION TWO HUNDRED FIFTY MILLION NINE THOUSAND ONE HUNDRED ELEVEN
6,040,000 SIX MILLION FORTY THOUSAND
99,019,900 NINETY NINE MILLION NINETEEN THOUSAND NINE HUNDRED
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real-numbers/154695: This question is from textbook Algebra1/2 An Incremental Development
How do you:
Write the six-digit number that has the digit 4 in the thousands' place, with each of the remaining digits being 6.
Write the seven-digit number that has the digit 3 in the millions' place and the digit 7 in the hundrends' place, with each of the remaining digits being 6.
A number has eight digits. Every digit is 9 except the ten millions' digit, which is 3, the ten-thousands' digit, which is 5, and the units' digit, which is 2. Use the digits to write the number.
Use the words to write each number:
90,807,060
32,000,000,652
3,250,009,111
6,040,000
99,019,900 1 solutions
Answer 113911 by checkley77(12569) on 2008-09-02 18:25:35 (Show Source):
You can put this solution on YOUR website!664,666
3,666,766
39,959,992
------------------------------
90,807,060 NINETY MILLION EIGHT HUNDRED & SEVEN THOUSAND AND SIXTY
32,000,000,652 THIRTY TWO MILLION SIX HUNDRED FIFTY TWO
3,250,009,111 THREE BILLION TWO HUNDRED FIFTY MILLION NINE THOUSAND ONE HUNDRED ELEVEN
6,040,000 SIX MILLION FORTY THOUSAND
99,019,900 NINETY NINE MILLION NINETEEN THOUSAND NINE HUNDRED
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Radicals/154699: 3 square root sign 64x^7 divided by 3 square root sign 4x 1 solutions
Answer 113908 by checkley77(12569) on 2008-09-02 18:14:27 (Show Source):
You can put this solution on YOUR website![HOPE THESE EXPLANATIONS HELP.]
3SQRT(64X^7)/3SQRT(4X) CANCEL OUT THE 3's in the numerator & denominator.
Factor all squares under the sqrts. (64=8*8, x^7=x^3*x^3*x^1,4=2*2)
SQRT(8*8*X^3*X^3*X)/SQRT(2*2*X)
Extract the square roots from under the square root sign. (8, x^3 & 2)
8X^3SQRTX/2SQRTX
DIVIDE THE NUMERATOR & DENOMINATOR BY 2 & CANCEL OUT THE SQRTX TERMS.
4X^3 ANSWER.
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Inverses/154634: could you please help me solve this problem and detail it.
solve for x. present answer in decimal form.
-2.2+1.3=-3.4x-2.3 1 solutions
Answer 113874 by checkley77(12569) on 2008-09-02 10:55:49 (Show Source):
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Numbers_Word_Problems/154534: in a class of 68 students, there are 8 fewer democrats than republicans, and there are only half as many independents as democrats if every student is registered as a democrat, republican, or independent, how many students are in each group? 1 solutions
Answer 113810 by checkley77(12569) on 2008-09-01 17:34:00 (Show Source):
You can put this solution on YOUR website!R+(R-8)+(R-8)/2=68
R+R-8+.5R-4=68
2.5R=68+12
2.5R=80
R=80/2.5
R=32 REPUBLICANS.
32-8=24 DEMOCRATS.
24.2=12 INDEPENDENTS.
PROOF:
32+24+12=68
68=68
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Expressions-with-variables/154569: The difference between high and low tides along the Maine coast in November is 19 feet on Monday and x feet on Tuesday. Write an expression to show the average rise and fall of the tide for Monday and Tuesday. 1 solutions
Answer 113805 by checkley77(12569) on 2008-09-01 17:25:31 (Show Source):
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Linear-equations/154564: How would I write these in standard form?
Has a slope of 3 and has a y-intercept of 4
Passes through the points (2,-6) and (4,-6)
Thanks
ryan 1 solutions
Answer 113801 by checkley77(12569) on 2008-09-01 17:14:58 (Show Source):
You can put this solution on YOUR website!Y=mX+B (red line)
Y=3X+4 THIS LINE HAS A SLOPE=3 & A Y INTERCEPT=4.
 (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions 3x +4 and y = -6).
----------------------------------------
slope=(-6+6)/4-2)=0/2 represents a horizontal line through -6 (green line).
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Exponents/154491: Can someone please help me with these problems
1.Use the foil method to multiply
(5x-1)(3x-2)
2.Multiply
(x-4)(2x^2-7x +8)
3. Perform the indicated operations
(7x^2-x+1)-(2x^2-x-3)-(5x^2+3x-10) 1 solutions
Answer 113753 by checkley77(12569) on 2008-09-01 10:59:36 (Show Source):
You can put this solution on YOUR website!5x-1
3x-2
--------------
15x^2-3x-10x+2
15x^2-13x+2
**********************************
2x^2-7x +8
x-4
--------------------
8x^3-14x^2+8x-8x^2+28x-32
8x^-22x^2+36x-32
***********************************
(7x^2-x+1)-(2x^2-x-3)-(5x^2+3x-10)
7x^2-x+1-2x^2+x+3-5x^2-3x+10
0x^-3x+14
-3x+14
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