01/03/18

Show: If (P1 P2) is a permutation matrix, then (P2 P1) is also a permutation matrix.
how to prove Permutation matrix
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01/01/18

Two consecutive integers have a sum of 95. What are the two numbers
im not sure how to solve this question can you please help
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12/31/17

Matrix Permutation
Show: If(P1 P2)is a permutation matrix, then(P2 P1)is also a permutation matrix.
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12/30/17

Permutation Matrix
Show: If P is a permutation matrix, then PT and PH are also permutation matrices.
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12/29/17

Prove: Every square matrix A can be written as A= A1 + A2 where A1 is Hermitian and A2 is skew- Hermitian
 Matrix question
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12/29/17

f(x) = ax + b , f(ax + b) ) x +1 - what's a & b ?
Let f(x) = ax + b Pick numbers for a and b so that f(ax + b) = x + 1    
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12/23/17

what speed is the shadow moving?
A street light is on top of a 10 foot pole. Mario, who is 6 feet tall, walks away from the pole at a rate of 4 feet per second. At what speed is the tip of Mario's shadow growing when he is 10 feet... more
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12/13/17

Calculus help
Determine the following limit by either removing the “offending” factor or usingL’Hopital’s Rule:     lim x2+3x-28 x→4 x2-x-12
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12/12/17

The ratio of girl to boy in mid jumpers class is 3:2 ,how many boy are there if there are 12 girls
The ratio of girl to boy in mid jumpers class is 3:2 ,how many boy are there if there are 12 girls      
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12/12/17

rank of matrix 3 by3 order by solution
rank of ⌈0 2 3]            ι0 4 6ι            ⌊0 6 9⌋       
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12/11/17

Express through p and q the sum of the squares of the roots of the equation x2+px+q=0.
 I need this asap because this is important
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12/06/17

Given a number x is algebraic, how would i prove that x^(1/3) is also algebraic?
Nothing more to add :)
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12/06/17

an object is moving at a speed of (3+sqrt(2)) ft/s. How long will it take the object to travel 20ft?
object moving at speed of an 3+sqrt(2)) ft/s
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11/22/17

The value of x
The value of y is directly proportional to the value of x. if y = 35 when x = 140, what is the value of y when x = 70?
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11/15/17

Find the value of r so that the line passes through the pair of points has the given slope. (-1,r), (1,-4), m=-5
I have no idea how to slove this problem out, ive beem working on it for an hour or 2 please help me out. So how can i figure this out step by step.
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11/09/17

The height of a triangle is 2in less than the length of the base.
The height of a triangle is 2in less than the length of the base. The triangle has an area of 40in2. Find the base and the height of the triangle. (include the correct units.)
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10/30/17

How to show that (1 - cos^2(x))csc^2(x) - sin^2(x) = cos^2(x)
The number of identities in this problem is confusing me and everything is getting turned around in my head.
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10/28/17

In △ABC, AD and BE are the angle bisectors of ∠A and ∠B and DE ║ AB . Find the length of DE if perimeter of ABDE is 30 cm and AB = 12 cm.
Hi i need help within the next `hr please help  
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10/26/17

If(x,y) be any point passing through (p/cosa,o) and (0,p/sina)then prove that xcosa+ysina=p
If(x,y) be any point passing through (p/cosa,o) and (0,p/sina)then prove that xcosa+ysina=p
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10/07/17

Problem relating to inequality
If x and y are two real numbers such that x>1 and y<-1, then which of the following inequalities must be true : a) (x/y)>1 b) |x|^2  > |y| c) (x/3)-5   >   (y/3)-5 d) x^2+1 ... more
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10/04/17

A stone falls freely from rest for 20 s. Calculate the stone’s velocity after that time. The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m/s.
i need to know what the velocity is.
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09/29/17

(x − 5)(x^2 + 5x + 25) is the factorization of what binomial?
Please help thanks
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09/22/17

The Calhoon Room in Branson, MO, has a circular turntable on which concerts are performed. The circumference of the table is 125.6 feet.
The Calhoon Room in Branson, MO, has a circular turntable on which concerts are performed. The circumference of the table is 125.6 feet. What is the radius of the table? (Use π = 3.14)
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09/22/17

Math word problem
The perimeter of a triangle is 30 feet. The longest side is 1 foot longer than the medium side, and the shortest side is 7 feet shorter than the medium side. What is the length of the longest side?
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09/12/17

For any two integers x and y, |x+y| = |x|+|y|
Im doing a counterexample & conjectures homework,  this is tje only one I need to solve and I don't know if it's true.  Thanks  Djcriss
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