07/01/15

I need help working out a statistic question
Learner drivers a flunking a new tough practical test with fewer than half now making it through. The restricted test was changed last month to make it more of a challenge. With nearly 1500 tests... more
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06/30/15

probability
An experiment consists of spinning the hand of the numbered disc as follows 1,2,3,4,5, observing the region in which the pointer stops - (a) what is an appropriate sample space for this... more
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06/21/15

perfect square trinomial to square of a binomial
x^211x+    x^2 -15x+   s^2- 2/3s +   h^2-3/4h+ 
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06/21/15

Work Word Problem
It takes Trevon 10 hours to clean an attic.  Cody can clean the same attic in 7 hours.  How long will it take them if they worked together?
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06/20/15

bikes not to exceed 5x number of motorcycles. can produce less than 100 motorcycles, or less than 250 bikes. total 300.
the number of bicycles made cannot exceed 5 times the number of motorcycles. They lack the facilities to produce more than 100 motorcycles, or more than 250 bicycles, and the total production of... more
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06/20/15

A security fence encloses a rectangular are on one side of a park in a city.
A security fence encloses a rectangular are on one side of a park in a city. Three sides of fencing are used, since the fourth side of the area is formed by a building. The enclosed area measures... more
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06/20/15

Polynomial : remainder theorem
When f(x) is divided by x-1 and x+2, the remainders are 4 and -2 respectively.hence find the remainder when f(x) is divided by (x^2)+x-2. please help :) thanks 
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06/20/15

maths polygon ques. help please...
ABCD is a convex quadrilateral. 3,4,5 and 6 points are marked on the sides AB, BC,CD and DA  respectively . The number of the triangles  with vertices on different sides  is... more
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06/20/15

maths fraction help please...
The number of zeroes coming immediately after the decimal point in the value of (0.2)25  is?     16 17 18 none of the above       Have no idea how to even start this one!!!! :( 
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06/20/15

Which of the following lines of best could represent bivariate data with a correlation coefficient of -0.98.
Answer choices: none of these  y = -3.6x + 4 y = 0.98x - 3 y = 6x - 7
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06/20/15

Trigonometry
Can someone explain Trigonometry to me? Bitesize and Mymaths doesn't help at all!   Like you know the SOH CAH TOA thing and the hypotenuse adjacent and opposite thing
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06/20/15

Power Laws and Indices
Ok I have an exam and these stuff will be on it but i don't know how to work it out. So I would like you to give me the answer and the working out... more
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06/19/15

Dealing with i - Can someone please check my reasoning? (And explain why I'm wrong if I'm wrong.)
Solve 3 – 4i = x + yi  The answers come out to be (according to the website) 3 = x and –4 = y. Below is my reasoning on how they got this.   For x: If you rearrange the equation to solve for x,... more
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06/18/15

solve problem
A toy tractor sold for $231 in 1975 and was sold again in 1987 for $455. Assume that the growth in the value V of the collectors item was exponential.   Find the value K of the exponential growth... more
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06/18/15

Trigonometry application question help!
An eagle flying at an altitude of 1000metres uses wind drafts and can be seen oscillating 6 complete cycles of -/+ 50metres within a span of 2 minutes. An ovserver notes at one point (t=0seconds)... more
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06/18/15

Can somebody help me with this math question?
Classify the figure created by the solution region of the system of inequalities:   y≥ 1 y≤ 5 x≥ 0 x≤4      A) parallelogram B) rectangle C)SQUARED)triangle
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06/18/15

In ?XYZ, ?X=56° and ?Y=17°. ?XWZ=90° and XY=1.7. Find the length of WY to the nearest 10th.
In ΔXYZ, ∠X=56° and ∠Y=17°. ∠XWZ=90° and XY=1.7. Find the length of WY to the nearest 10th.
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06/18/15

In ?XYZ, ?X=47° and ?Y=16°. ?XWZ=90° and XY=230. Find the length of WY to the nearest 10th.
In ΔXYZ, ∠X=47° and ∠Y=16°. ∠XWZ=90° and XY=230. Find the length of WY to the nearest 10th.
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06/18/15

How many 2/3 cups serving of cereal can be made from a six package?
I need the answers please!!!
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06/18/15

Noelle left the mall traveling 4 mph. Then, 3 hours later, Catherine left traveling the same direction at 10 mph.
Noelle left the mall traveling 4 mph. Then, 3 hours later, Catherine left traveling the same direction at 10 mph. How long until Catherine catches up with Noelle?
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06/18/15

time speed and distance
Shyam can row 36 km upstream inn 4 hours. If the speed of the stream is 3 kmph then find how far he can go downstream in 6 hours
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06/17/15

A composition of reflections over parallel lines is the same as a __________. A. translation B. rotation C. glide reflection D. double rotation

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06/14/15

How to write the union and intersection of two sets using interval notation?
I'm trying to figure out the union and intersection of these two sets (below) using  interval notation for these problems   B={v|v>=1} C={v|v<8}   my answers where (-infinity, 1] and no... more
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06/14/15

Algebra word problem help, please!
Nicholas takes a boat ride down a river to visit an island at the mouth of the river. The boat leaves the docks at 9:15 am and reaches the island at 10:34 am. He spends several hours on the island,... more
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06/14/15

Precal final review solve
2 equations That are giving me difficulty.   Solve a)  (2x+3)/(x+5)  +  (1)/(2)   = (7)/(2x+10)         b)(x2+4x+3)/(x2+5x+6)     +   (x2-5x+6)/(x2-3x+2)   =  (x2+1x-6)/(x2+1x-2)
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