Thursday
June 20, 2013

# Posts by Melinda

Total # Posts: 149

Biology
how many properties of blood exists

Calculus and vectors

Calculus and vectors
Do the vectors (2,0,1),(-2,0,0) and (2,3,0) lie on the same plane? Explain your reasoning.

Calculus
Vector C=5 and Vector D=8. The angle formed by C and D is 35 degrees, and the angle formed by A and C is 40 degrees. Determine |B|. Here is the image for triangle: imgur dot com/OZAwV please help, I have a test tomorrow~

Calculus
If a(0,-1,3)+b(1,1,1)-c(1,2,5)=(-2,3,-8), determine a,b,c Is this the correct answer: a= -4, b= -3, c= -1?

Calculus and vectors
A parallelogram is formed by R^3 by the vectors PA=(3,2,-3) and PB=(4,1,5). The point P=(0,2,3). a) what are the location of the vertices? b) what are the vectors representing the diagonals? c) what are the length of the diagonals?

Calculus
If a(0,-1,3)+b(1,1,1)-c(1,2,5)=(-2,3,-8), determine a,b,c

Calculus & Vectors
Could someone explain this question to me? I attempted the question and here is why I chose the answer below. Thank you! -------------------------------------- 1. If A ⃗ is a vector representing 50 km/h northeast, what is 3/5 A ⃗? a) 30 km/h southwest b) 30 km/h no...

Calculus
An object is dropped from the observation deck of the Skylon Tower in Niagara Falls, Ontario. The distance, in metres, from the deck at t seconds is given by d(t)=4.9t^2 a) the height of the observation deck is 146.9 m. How fast is the object moving when it hits the ground? Th...

Calculus
Which of the following is the maximum value of the function f(x)=2sinxcosx? a) 0 b) 1 c) 2 d) No maximum value

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