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Points-lines-and-rays/338504: Find ST if S is between R and T, SR = 2x + 7, ST = x-6, and RT = 49.
1 solutions

Answer 242672 by Fombitz(13828) About Me  on 2010-09-03 09:48:04 (Show Source):


Exponential-and-logarithmic-functions/338459: (2x^2)^-3(xy^0)^-2
-------------------
2xx^0x^1xxy^2
Using rules of exponents
1 solutions

Answer 242671 by Fombitz(13828) About Me  on 2010-09-03 09:45:55 (Show Source):


Square-cubic-other-roots/338570: Factor x^3 - 64
I don't remember how to factor cube roots.
I think the formula Is like (a-b)(a+b)^2
please help me.
thanks.
1 solutions

Answer 242668 by Fombitz(13828) About Me  on 2010-09-03 09:35:53 (Show Source):
You can put this solution on YOUR website!
Just do a search on difference of cubes.
.
.
.
a%5E3++-+b%5E3++=%28a+-+b%29%28a%5E2++%2B+ab+%2B+b%5E2%29


Linear_Equations_And_Systems_Word_Problems/338458: Suppose that an object is projected in such a way that its height above the ground in feet after t seconds is given by s(t) = -16t2 +48t + 46. Find the maximum height of the object.

1 solutions

Answer 242667 by Fombitz(13828) About Me  on 2010-09-03 09:31:33 (Show Source):
You can put this solution on YOUR website!
Convert to vertex form,
s%28t%29+=+-16t%5E2+%2B48t+%2B+46
s%28t%29=-16%28t%5E2-3t%29%2B46
s%28t%29=-16%28t%5E2-3t%2B9%2F4%29%2B46%2B16%289%2F4%29
s%28t%29=-16%28t-3%2F2%29%5E2%2B46%2B36
s%28t%29=-16%28t-3%2F2%29%5E2%2B82
The max height occurs at the vertex, (3/2,82).
smax=82ft.



Trigonometry-basics/338507: write tan teita, cos teita in terms of the second expression
1 solutions

Answer 242665 by Fombitz(13828) About Me  on 2010-09-03 09:25:56 (Show Source):


Trigonometry-basics/338497: tanx/(secx+1)
1 solutions

Answer 242664 by Fombitz(13828) About Me  on 2010-09-03 09:24:04 (Show Source):


logarithm/338494: 2 log sqrt (x) + 3 log x^1/3
1 solutions

Answer 242663 by Fombitz(13828) About Me  on 2010-09-03 09:21:03 (Show Source):


Geometry_Word_Problems/338558: Of the three angles of a triangle one is half the greatest and other is thrice the smallest .find the angles
1 solutions

Answer 242662 by Fombitz(13828) About Me  on 2010-09-03 08:47:53 (Show Source):
You can put this solution on YOUR website!
Let the angles be A,B,C from smallest to largest.
B=%281%2F2%29C
C=2B
.
.
.
B=3A
A=%281%2F3%29B
.
.
.
A%2BB%2BC=180
%281%2F3%29B%2BB%2B2B=180
B%2B3B%2B6B=540
10B=540
B=54
A=%281%2F3%29%28108%29=18
C=2%28108%29=108


Problems-with-consecutive-odd-even-integers/338559: Y when two even numbers are added together the answer is still an even number
1 solutions

Answer 242661 by Fombitz(13828) About Me  on 2010-09-03 08:40:59 (Show Source):
You can put this solution on YOUR website!
Odd number plus an odd number equals an even number.
Example:3%2B5=8
An even number is always 1 more than an odd number.
Example:4=3%2B1
So when you add two odd numbers, you are really adding an odd number plus 1 plus another odd number plus 1.
Odd number plus an odd number is even, as you saw from above.
An even number plus 2 is an even number.
Example:2%2B2=4
So an even number plus an even number equals an even number.


Radicals/338561: How does 2^3^2=512 please
1 solutions

Answer 242659 by Fombitz(13828) About Me  on 2010-09-03 08:21:03 (Show Source):
You can put this solution on YOUR website!
%282%5E3%29%5E2=2%5E6=64
It doesn't.
2%5E9=512
%282%5E3%29%5E3=2%5E9=512
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.
.
I guess if the parentheses are like this then it works.
2%5E%283%5E2%29=2%5E9=512


Geometry_Word_Problems/338562: Please help with this problem. It has been over 20 years since I have had Algebra and need a little refresher.
Her is the story problem:
Because of a noisy neighbor, a young man decided to put acousinal tiles on the living room ceiling which measures 21 feet by 18 feet. The tiles are square, with a side length of 1 foot. If the tiles cost $3 a piece, what is the total cost to cover the ceiling?
Put in either 4,6,8.
Thank you!
My e-mail address is makaylasmum@yahoo.com

1 solutions

Answer 242658 by Fombitz(13828) About Me  on 2010-09-03 08:17:12 (Show Source):
You can put this solution on YOUR website!
Find the total area to cover the ceiling.
The ceiling is in the shape of a rectangle.
The area of a rectangle is length times width.
A=L%2AW=21%2A18sq.ft.
Each tile is a 1'x1' square and has an area of 1 sq. ft.
Divide the total area by the area of one tile to find out how many tiles you need.
N=A%2F1
The total cost is $3 times the number of tiles.
C=3N=%283A%29%2F1=%283%2A21%2A18%29%2F1 in dollars.


Equations/338334: what is the answer to 1/4 (7 + 3g) = -g/8?
1 solutions

Answer 242515 by Fombitz(13828) About Me  on 2010-09-02 19:30:58 (Show Source):
You can put this solution on YOUR website!
Multiply both sides by 8.
2%287%2B3g%29=-g
14%2B6g=-g
Now solve for g.


test/338299: solve the literal equation for circle. circle +square equal triangle,show steps
1 solutions

Answer 242514 by Fombitz(13828) About Me  on 2010-09-02 19:28:29 (Show Source):
You can put this solution on YOUR website!
circle +square-square= triangle-square
circle+0=triangle-square
circle= triangle-square


Trigonometry-basics/338364: how do you find:
sin 244 to the nearest ten thousandths?
1 solutions

Answer 242513 by Fombitz(13828) About Me  on 2010-09-02 19:26:50 (Show Source):
You can put this solution on YOUR website!
Calculator?
.
.
.
sin%28244%29=-0.89879404
to the nearest ten thousandth,
sin%28244%29=-0.89879


absolute-value/338367: what is the answer to this equation: 7|4x-13|
1 solutions

Answer 242512 by Fombitz(13828) About Me  on 2010-09-02 19:25:42 (Show Source):
You can put this solution on YOUR website!
It's not an equation without an "=" and a right hand side.
Please re-post.


Exponents/338335: what is t9xt3
1 solutions

Answer 242511 by Fombitz(13828) About Me  on 2010-09-02 19:25:12 (Show Source):
You can put this solution on YOUR website!
Do you mean t%5E9%2At%5E3?
Use t^9 to show an exponent and "*" for multiplication so it doesn't get confused with the variable,x.
t%5E9%2At%5E3=t%5E%289%2B3%29=t%5E12


Angles/338344: topic is measuring angles

1 solutions

Answer 242510 by Fombitz(13828) About Me  on 2010-09-02 19:23:42 (Show Source):
You can put this solution on YOUR website!
But what's the question?


Angles/338347: BD is the angle bisector of ABC. If ABD= 2x+14 and CBD= 5x-10, what is the measure of ABD?

1 solutions

Answer 242509 by Fombitz(13828) About Me  on 2010-09-02 19:23:05 (Show Source):


Square-cubic-other-roots/338352: how many square meters is in a meter
1 solutions

Answer 242508 by Fombitz(13828) About Me  on 2010-09-02 19:21:48 (Show Source):
You can put this solution on YOUR website!
None... square meters are measures of area, meters are measures of distance.
.
.
.
As an example, if you have a rectangle with a length of 2 meter and a width of 3 meters, the area of the rectangle is,
A=L%2AW=2%2A3=6 square meters.


Points-lines-and-rays/338355: RL=3x+4,LM=x+1 and RM=5x+2 How do you find the value of x ?
1 solutions

Answer 242507 by Fombitz(13828) About Me  on 2010-09-02 19:18:54 (Show Source):


Probability-and-statistics/338357: A Jar contains 30 red marbles, 50 blue, and 20 white. You pick one marble fromt the jar at random. Find each theoretical probability.
P(red)
P(blue)
P(not white)
P(red or blue)
1 solutions

Answer 242506 by Fombitz(13828) About Me  on 2010-09-02 19:17:12 (Show Source):
You can put this solution on YOUR website!
30 R - Red
50 B - Blue
20 W - White
100 total
P%28R%29=30%2F100=3%2F10
.
.
P%28B%29=50%2F100=1%2F2
.
.
P%28not+W%29%2BP%28W%29=1
P%28not+W%29=1-P%28W%29=1-20%2F100=80%2F100=4%2F5
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.
P%28R+or+B%29=P%28R%29%2BP%28B%29=3%2F10%2B5%2F10=8%2F10=4%2F5


Inequalities/337958: i dont knoq how to solve absolute value equations
1 solutions

Answer 242354 by Fombitz(13828) About Me  on 2010-09-01 22:22:19 (Show Source):
You can put this solution on YOUR website!
Here's an example.
abs%283x-4%29=2x%2B2
Two solutions: Positive and negative.
.
.
Positive:
3x-4=2x%2B2
highlight%28x=6%29
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.
.
Negative:
-%283x-4%29=2x%2B2
-3x%2B4=2x%2B2
-5x=-2
highlight%28x=2%2F5%29


Rational-functions/337947: Determine the nature of the equation, 6t2-8t=0
a) 2 imaginary solutions
b) 2 real solutions
c) 1 real solution
thank you!
1 solutions

Answer 242351 by Fombitz(13828) About Me  on 2010-09-01 22:15:19 (Show Source):
You can put this solution on YOUR website!
Use the discriminant, D=b%5E2-4ac=%28-8%29%5E2-4%281%29%280%29=64
Since D%3E0, 2 real roots.


Rational-functions/337945: Give exact and approximate solutions to three decimals places
y^2-16y+64=25
Type an exact answer, using radicals as needed. Rationalize all denominators. Express complex numbers in terms of i using a comma to separate answers as needed
1 solutions

Answer 242350 by Fombitz(13828) About Me  on 2010-09-01 22:14:04 (Show Source):


Quadratic_Equations/337897: How can you use the discriminant to determine if a quadratic polynomial can be factored?
1 solutions

Answer 242349 by Fombitz(13828) About Me  on 2010-09-01 22:12:13 (Show Source):
You can put this solution on YOUR website!
If the value of the disriminant is a perfect square, the quadratic equation can be factored.


Miscellaneous_Word_Problems/337918: Write a quadraic equation in the variable x having the given number as solutions type the equation in standard form, ax^2+bx+c=0
solution 9, only solution
The equation is __?__=0
1 solutions

Answer 242347 by Fombitz(13828) About Me  on 2010-09-01 22:10:39 (Show Source):


Equations/337911: In a math class of 26 students, each girl drew a triangle and each boy
drew a rectangle.There were 92 sides in all. How many girls and how
many boys were in the class?
1 solutions

Answer 242346 by Fombitz(13828) About Me  on 2010-09-01 22:09:55 (Show Source):
You can put this solution on YOUR website!
Let R be the number of rectangles, T triangles.
1.R%2BT=26
2.4R%2B3T=92
From eq. 1,
R=26-T
Substitute into eq. 2,
4%2826-T%29%2B3T=92
104-4T%2B3T=92
-T=-8
highlight%28T=8%29
Then from eq. 1,
R%2B8=26
highlight%28R=18%29


Linear-equations/337917: Write the equation of the line that is parellel to the y-axis, passing through the point (-8, 3)
1 solutions

Answer 242345 by Fombitz(13828) About Me  on 2010-09-01 22:08:03 (Show Source):
You can put this solution on YOUR website!
Parallel to the y-axis has the form, x=a
Use the point to solve for a.
a=-8
highlight%28x=-8%29
.
.
.


Systems-of-equations/337920: find the area of the trash dump formed by the intersection of the lines x=-2, y=3x-7, 2x+y=2
1 solutions

Answer 242342 by Fombitz(13828) About Me  on 2010-09-01 22:05:59 (Show Source):
You can put this solution on YOUR website!

.
.
.
Find the intersection points.
y=3%28-2%29-7=-6-7=-13
(-2,-13)
.
.
.
y=-2%28-2%29%2B2=4%2B2=6
(-2,6)
.
.
.
3x-7=-2x%2B2
5x=9
x=9%2F5
y=-2x%2B2
y=-18%2F5%2B10%2F5
y=-8%2F5
(9/5,-8/5)
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.
.

.
.
.
For the area of the triangle we need the height and the base.
Base : b=6-%28-13%29=19
Height: h=9%2F5-%28-2%29=9%2F5%2B10%2F5=19%2F5
A=%281%2F2%29bh
A=%281%2F2%29%2819%29%2819%2F5%29
A=361%2F10


Rectangles/337925: My first algebra lesson how to find the area of a rectange being A=60 un2 and length is 8. Not sure how to set up formula? A=l*w 60=8*2x?
1 solutions

Answer 242335 by Fombitz(13828) About Me  on 2010-09-01 21:57:56 (Show Source):
You can put this solution on YOUR website!
The area of a rectangle is,
A=L%2AW=60
You also know that L=8
8W=60


Linear_Algebra/337955: Find the value of x and YZ if Y is between X and Z.
6. XY = 5x, YZ = x, and XY = 25
1 solutions

Answer 242333 by Fombitz(13828) About Me  on 2010-09-01 21:56:56 (Show Source):