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April 20, 2014

Homework Help: Math

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Math
all 6 numbers add up to 55953.77 $2,023.60. $22,046.01 $8,161.59 $10,284.69 $11,023.01 $2,414.88 $55,953.77total The percent listened for 6 numbers above are in order as above are the percents that were calculated (which I don't understand how!) 4.0% 39.0% 15.0 % 18.0% 20....
Wednesday, April 16, 2014 at 4:02pm

MATH
How do you find the base area of a rectangular prism if you know the volume and the height
Wednesday, April 16, 2014 at 4:00pm

Math
Bart won the jellybean estimation contest at his class Easter party he won 28 Easter stickers he gave 1/8 of the stickers to his friend rob how many stickers did he give rob
Wednesday, April 16, 2014 at 3:50pm

Math
to figure a percentage, just divide and multiply by 100. 2023.60/55953.77 = 0.0361 = 3.61%
Wednesday, April 16, 2014 at 3:46pm

calculus help
There's a nice discussion here: http://math.stackexchange.com/questions/​126755/lhospitals-rule-with-indeterminat​e-powers
Wednesday, April 16, 2014 at 3:44pm

Math
Can you help me ? I need to figure formula if I have $2023.60 what percent is it of $55,953.77? Also need to figure formula if I have $22,046.02.01 what percent is it of $55,953.77?
Wednesday, April 16, 2014 at 3:32pm

Math
Using these numbers, 2 4/9, 2 5/9, 2 6/9, 2 8/9, 3, 3 1/9, 3 3/9, 3 4/9 & 3 5/9. Build a square where the sum of every horizontal, vertical, and diagonal row is 9. The square has 3 rows across & 3 rows down for a total of 9 small blocks.
Wednesday, April 16, 2014 at 3:13pm

Math
Show 2/4 of the set. How many counters?
Wednesday, April 16, 2014 at 2:21pm

consumer math
Tim Worker buys a new sofa for $629.95. He pays 25% down and takes an installment loan to complete the purchase. He makes 12 payments which include his principal and a $60.00 finance charge. What is the APR on his loan to the nearest tenth? The down payment is $ The amount ...
Wednesday, April 16, 2014 at 12:27pm

College Math
a. F'(x) = 3(x^2 +4x +2/(x+2)^2 b. F'(x) = 5cos(5x + e^2) c. F'(x) = 6x(e^x) + e^x (6) = 6e^x (x +1)
Wednesday, April 16, 2014 at 12:17pm

College Math
F'(x) = 3(x^2 +4x +2/(x+2)^2 F'(x) = 5cos(5x + e^2) F'(x) = 6x(e^x) + e^x (6) = 6e^x (x +1)
Wednesday, April 16, 2014 at 12:16pm

College Math
Find the derivative of the following functions: a) f(x)=(3x^2-6 )/(x+2) b) g(x)=sin(e^2 +5x) c) j(x)=6xe^x d) Your velocity is v(t)= t^2 = 1 for 0≤ t ≤ 4. Find or estimate the distance traveled during this time.
Wednesday, April 16, 2014 at 11:54am

math
(P2-P1)/P1 * 100
Wednesday, April 16, 2014 at 10:52am

Math
√(25^2 + 10^2)
Wednesday, April 16, 2014 at 10:50am

Math
A boat must be moored 25 feet away from a dock. The boat will be 10 feet below the level of the dock at low tide. What is the minimum length of rope needed to go from the boat to the dock at low tide?
Wednesday, April 16, 2014 at 10:35am

Math
3 L / 2 = 18 Multiply both sides BY 2 3 L = 36 Divide both sides by 3 L = 12 ft
Wednesday, April 16, 2014 at 10:32am

Math
P = 2 W + 2 L = 2 ( W + L ) = 40 2 ( W + L ) = 40 Divide both sides by 2 W + L = 20 W = 2 + L / 2 W + L = 20 2 + L / 2 + L = 20 2 + L / 2 + 2 L / 2 = 20 2 + 3 L / 2 = 20 Subtract 2 to both sides 2 + 3 L / 2 - 2 = 20 - 2 3 L / 2 = 18 Multiply both sides by 3 3 L = 36 Divide ...
Wednesday, April 16, 2014 at 10:30am

math
what is the formula to find the percent increase in profit
Wednesday, April 16, 2014 at 10:18am

Math
The perimeter of rectangular garden is 40 feet. The width is 2 feet more than half the length. What is the length and width
Wednesday, April 16, 2014 at 10:15am

math
3, answer = 500 4, answer = 10 5, 382. 50
Wednesday, April 16, 2014 at 10:12am

math
To recover a larger chair in your home,you purchase 9.5 yards of upholstery fabric at $11.00per yard.if there is a 7%sale tax,what is the total cost of the fabric
Wednesday, April 16, 2014 at 9:05am

algebra
oh my god math is terrible
Wednesday, April 16, 2014 at 8:36am

math
log4(2x+4) - 3 =log4 3 log4(2x+4) - 3log44 = log4 3 log4(2x+4) - log4 4^3 = log43 log4[(2x+4)/64] = log43 (2x+4)/64 = 3 2x+4 = 192 2x=188 x = 94
Wednesday, April 16, 2014 at 7:51am

math
log4(2x+4)-3 =log4 3
Wednesday, April 16, 2014 at 7:37am

Math
PR/QR = sin(Q) PR/120 = sin(10.5)
Wednesday, April 16, 2014 at 6:07am

Math
I get zero. ∫[-1,2] 1-x^2 dx = x - x^3/3 [-1,2] = (2 - 8/3) - (-1 + 1/3) = 0 yeah, I know, we have to divide by 3 ...
Wednesday, April 16, 2014 at 5:56am

Math
5% growth is just 1200000*1.05^n after n years for #c, we have 1200000*(1.05)^7*(0.92)^8 = 866,581
Wednesday, April 16, 2014 at 5:48am

math
out of 36 possible rolls, only 4 have the sum < 5: 12 13 21 22 What's the chance of no 6's? 5/6 * 5/6 so, take 1-P(~6,~6) = 11/36
Wednesday, April 16, 2014 at 5:46am

math (Matrix algebra)
assuming you mean a determinant, and calling your matrix M, I get |M| = 31-3x So, if 31-3x = 25, x=2 The inverse can be seen at http://www.wolframalpha.com/input/?i=inv​erse+{{-2%2C+1%2C+x%2B2}%2C{3%2C+x-4%2C+​5}%2C{0%2C+1%2C+3}}+ substitute in x=2 if you just want...
Wednesday, April 16, 2014 at 5:38am

math (Matrix algebra)
Enter your data at http://www.gregthatcher.com/Mathematics/​GaussJordan.aspx to see all the details
Wednesday, April 16, 2014 at 5:33am

math (Matrix algebra)
solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam
Wednesday, April 16, 2014 at 4:10am

math (Matrix algebra)
if (-2 1 x+2 ) (3 x-4 5 ) =25 (0 1 3 ) p/s : all the value above in one bracket ( ) a) find the value of x b) hence ,find (-2 1 x+2 )^-1 ( 3 x-4 5 ) (o 1 3 ) p/s : all the value above in one bracket ( )
Wednesday, April 16, 2014 at 4:08am

math (Matrix algebra)
solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam
Wednesday, April 16, 2014 at 3:42am

Math/Physics
Why the 1/2 in 1/2*a*time^2?
Wednesday, April 16, 2014 at 1:22am

math
No you can't
Wednesday, April 16, 2014 at 12:47am

math
(145*130)/65 = 18850/65 =290 No
Wednesday, April 16, 2014 at 12:45am

math
(125-115)/125 (10/125 )*100 8%
Wednesday, April 16, 2014 at 12:36am

Math
Real Estate an office building purchased for $1, 200,000 is appreciating because of rising property values in the city. At the end of each year its value is 105% of its value at the end of the previous year. a. Use a recursive formula to determine what the value of the ...
Wednesday, April 16, 2014 at 12:32am

Math/Physics
John distance=20*time Jane distance=15*time+1/2 a time^2 set them equal, solve for time then solve for either distance in that time.
Wednesday, April 16, 2014 at 12:20am

math
you were right i thought so that's why i wrote to you .
Tuesday, April 15, 2014 at 11:54pm

math
You require space to service 65 vehicles at any one time. Will a facility measuring 145 ft. by 130 ft. be adequate if each vehicle requires 300 sq.ft.?
Tuesday, April 15, 2014 at 11:49pm

Math
1.A and 2.D
Tuesday, April 15, 2014 at 11:38pm

math
You sell and service vacuum cleaners. Your price on a particular model is $125. However, to get a service contract, you offer to sell it for $115. How much discount are you giving as a percentage of price (to the nearest tenth)?
Tuesday, April 15, 2014 at 11:34pm

math
a pair of dice is rolled. what is the probabilty of each of the following? a. the sum of the numbers shown uppermost is less than 5. b. at least one six is cast.
Tuesday, April 15, 2014 at 11:20pm

Math
Anyone?
Tuesday, April 15, 2014 at 11:13pm

Math/Physics
John is driving at a constant speed of 20.0 m/s when he passes Jane, who is traveling in the same direction at 15.0 m/s at the moment that John passes her. If Jane is accelerating at 2.0 m/s2, how far will Jane drive before she catches up to John? How much time passes from ...
Tuesday, April 15, 2014 at 11:13pm

Math
1.Jamilla is building a square sandbox with sides 7 feet long. She wants to put sand 2 feet deep in the box. How much sand should Jamilla order? A.98ft3 B.14ft3 C.49ft3 D.16ft3 2.What happens to the volume of a rectangular prism when each of the dimensions is doubled? A.it ...
Tuesday, April 15, 2014 at 11:12pm

math (Matrix) 2
if (-2 1 x+2 ) (3 x-4 5 ) =25 (0 1 3 ) a) find the value of x b) hence ,find (-2 1 x+2 )^-1 ( 3 x-4 5 ) (o 1 3 ) p/s : all the value above IS COMBINE in one bracket ( )
Tuesday, April 15, 2014 at 10:21pm

math (Matrix)
solve the equations by using a) the adjoint matrix b) elementary row operations i) x+y+z=6 2x-y+z=3 x+4y-z=6 ii) 3p-3q+r=1 -3p+5q-2r=-1 p-2q+r=3 iii)-12a+b+17c=-14 2a-b+3c=5 8a+b-13c=-3 thanks sir/madam
Tuesday, April 15, 2014 at 10:20pm

Math
It still says it is wrong. =/
Tuesday, April 15, 2014 at 9:52pm

Math
=1/(2-(-1) ∫((1/2)x^2 - x + 3) dx from x = -1 to 2 =1/3 [ (1x-x^3/3 ] from x = -1 to 2 =1/3[2-8/3)-(1-1/3)] 1/3[-2/3-2/3] =0
Tuesday, April 15, 2014 at 9:36pm

MAth
cos 31° = PQ/20
Tuesday, April 15, 2014 at 9:31pm

Math Grade 3
84
Tuesday, April 15, 2014 at 9:24pm

math
y - 4x = 8 (t- chart)
Tuesday, April 15, 2014 at 9:21pm

MAth
In triangle PQR, <Q=90 degrees, <P=31 degrees and PR=20 cm. Find PQ.
Tuesday, April 15, 2014 at 9:12pm

Math
the way you typed it, the entire bracket is divided by 2. 5(2x - 10)/2 + 14 = 19 5(x - 5) + 14 = 19 5x - 25 = 19-14 5x = 5 + 25 5x = 30 x = 6
Tuesday, April 15, 2014 at 9:11pm

Math
5(2x - 10)/2 + 14 = 19 10x - 50/2 + 14 = 19 10x -25 + 14 = 19 I am stuck- help
Tuesday, April 15, 2014 at 9:06pm

Math
Find the average value of the function f over the interval [-1, 2]. f(x)=1-x^2
Tuesday, April 15, 2014 at 8:51pm

Math
so when moving from one side of equal sign changes the sign of number/variable. The negative sign in front of brackets changed numbers inside to negatives. Thanks
Tuesday, April 15, 2014 at 8:37pm

MATH
sin 10.5° = PR/120 PR = 120 sin 10.5° = ....
Tuesday, April 15, 2014 at 8:32pm

Math
P(x) = 1.3x-.01x^2-30 = -.01x^2 + 1.3x - 30 in more standard notation you will need the vertex. The x of the vertex is -b/(2a) = -1.3/(-.02) = 65 then P(65) = -.01(65)^2 + 1.3(65) - 30 = 12.25 when x = 65
Tuesday, April 15, 2014 at 8:31pm

Math
I recommend getting rid of brackets first to get nice straightforward terms, then simplify, and then "move" terms from side to side. -5 - x = 2x - 4x - 6 -5 - x = -2x - 6 2x - x = -6 + 5 x = -1 (your -x on the right side should have been +x )
Tuesday, April 15, 2014 at 8:23pm

Math
In triangle PQR, <P=90 degrees, <Q=10.5 degrees and RQ=120 cm. Find PR.
Tuesday, April 15, 2014 at 8:07pm

Math
HE HAS NO PROPER TEA (property)
Tuesday, April 15, 2014 at 8:03pm

MATH
In triangle PQR, <P=90 degrees, <Q=10.5 degrees and RQ=120 cm. Find PR.
Tuesday, April 15, 2014 at 7:50pm

Math
Given the total profit function P(x) = 1.3x-.01x^2-30, let x represent a number of days and find maximum profit achieved and when that profit is made. Then graph the function and mark the vertex
Tuesday, April 15, 2014 at 7:49pm

3 grade math ms sue
Lloooooooo
Tuesday, April 15, 2014 at 7:47pm

Math
1.05^2 - 1 = 10.25 APY Wilder 1.0081666^12 - 1 = 10.2524 APY Cheapskate so go with cheapskate ten years 1.05^20 =2.6532 *85,000 = 225,530.30 1.0008166667^120 = 2.65387 *85,000 = 225,579.18 Cheapskate is 48.88 better
Tuesday, April 15, 2014 at 7:37pm

Math
-5 - x = 2x - (4x + 6) -5 + 6 = 2x - 4x -x Not sure if I am working this problem correctly
Tuesday, April 15, 2014 at 7:24pm

MATH
You're very welcome.
Tuesday, April 15, 2014 at 7:24pm

MATH
THANK YOU FOR HELP ME SO MUCH ON MY HOMEWORK I REAL appreciate it
Tuesday, April 15, 2014 at 7:22pm

Math
sin 10 = PR/16 PR = 16 sin 10
Tuesday, April 15, 2014 at 7:19pm

Math
sin 10 = PR/16 PR = 16 sin 10
Tuesday, April 15, 2014 at 7:18pm

Math
In triangle PQR, <R=90 degrees, <Q=10 degrees and RQ=16 cm. Find PR.
Tuesday, April 15, 2014 at 7:16pm

math
This problem cannot be solved with only that information.
Tuesday, April 15, 2014 at 7:14pm

Math
12/25 * 10/14 * 7/18 I see a 7 which can go into 14 I see 5 which can go into 10 and 25 12/5 * 2/2 * 1/18 Now, I see six goes into 12 and 18, so 2/5 * 2/2 * 1/3 2/5 * 1 * 1/3=2/15 check all that.
Tuesday, April 15, 2014 at 7:14pm

Math
8 - 4 3/4 = 7 4/4 - 4 3/4 = 3 1/4
Tuesday, April 15, 2014 at 7:12pm

Math
8 inches-4 3/4 inches=3 and 1/4 inches left
Tuesday, April 15, 2014 at 7:12pm

math
how can you solve this problem ? here X=Y plz help me fast
Tuesday, April 15, 2014 at 7:10pm

Math
.4
Tuesday, April 15, 2014 at 7:10pm

Math
Maurice needed to cut a piece of wood for his project that measures 4 3/4 inches . How much wood will he have left if the board that he is cutting from is 8 inches long? Show your work
Tuesday, April 15, 2014 at 7:09pm

math
Draw a line down the middle. Then 1 across. Next draw an x through the square. This should give you 8 parts.
Tuesday, April 15, 2014 at 7:09pm

math
http://www.google.com/search?q=square+8+​parts&tbm=isch&tbo=u&source=univ&sa=X&ei​=irtNU6uYD4qwyASrv4HoAg&ved=0CFMQsAQ&biw​=1366&bih=643
Tuesday, April 15, 2014 at 7:07pm

Math
In triangle PQR, <R=90 degrees, <Q=10 degrees and RQ=16 cm. Find PR.
Tuesday, April 15, 2014 at 7:01pm

math
how to seperat square into 8 parts
Tuesday, April 15, 2014 at 6:59pm

Math
Jason Printing has $85,000 to invest. They can invest in Wilder Revenue at 10% compounded semiannually or at Cheapskate Investments at 9.8% compounded monthly. a) Calculate the two APYs and compare them to determine your answer. Make sure to distinguish which APY belongs to ...
Tuesday, April 15, 2014 at 6:51pm

Math
time upriver=distance/(S-2) time downriver= distance/(s+2) 8hours=79.2 ( 1/(s-2) + 1/(s+2)) a bit of algebra, but get a common denominator on the right (s^2-4), 8hours=79.2 ( s+2 + s-2)/s^2-4 then combine, put it in quadratic form, and solve for s.
Tuesday, April 15, 2014 at 6:50pm

Math
I need help with 12 over 25 times 10 over 14 times 7over 18 and then putting it into simplest form
Tuesday, April 15, 2014 at 6:49pm

Math
The mad river flows at a rate of 2 KM/H. In order for a boat to travel 79.2 KM of River and then return in a total of eight hours how fast must about travel in Still water?
Tuesday, April 15, 2014 at 6:46pm

5th grade Math
I don't get this
Tuesday, April 15, 2014 at 6:10pm

Math
The answer is 9
Tuesday, April 15, 2014 at 6:08pm

Math
0.859 * 48.3 = $41.49
Tuesday, April 15, 2014 at 5:51pm

Math
The price of gas is 85.9 cents per Litre. If Brenda needs 48.3 L of gas to fill her gas tank, how much will she pay? Please show the steps.
Tuesday, April 15, 2014 at 5:40pm

Math
The answer is you don't know crap....
Tuesday, April 15, 2014 at 5:30pm

Probability
yes please someone who loves math¡
Tuesday, April 15, 2014 at 4:44pm

math
Real Estate an office building purchased for $1, 200,000 is appreciating because of rising property values in the city. At the end of each year its value is 105% of its value at the end of the previous year. a. Use a recursive formula to determine what the value of the ...
Tuesday, April 15, 2014 at 4:33pm

math
Nooo
Tuesday, April 15, 2014 at 4:21pm

Math PIZZAZZ
Math pizzazz worksheet answers book D page 31Math pizzazz worksheet answers book D page 31Math pizzazz worksheet answers book D page 31Math pizzazz worksheet answers book D page 31Math pizzazz worksheet answers book D page 31Math pizzazz worksheet answers book D page 31Math ...
Tuesday, April 15, 2014 at 3:42pm

math
5 * .011 * p = 82.5
Tuesday, April 15, 2014 at 3:17pm

math
An investment earning simple interest at a rate of 1.10% per annum for a term of 5 years earned $82.50 in interest. What was the principal?
Tuesday, April 15, 2014 at 3:11pm

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