Homework Statement
x^3/2(x+x5/2-x2)
Homework Equations
I don't know how to simplify this problem.
I don't know any process either.
The Attempt at a Solution
I forgot almost things. so, For 1 I just answered x>4 and x>-5 is it correct?
and, I tried number2 using sin 2x = 2sin(x)cos(x)
so, I just got 2cox=1 but, I don't know next step. Please help me out.
Homework Statement
I totally forgot my basic pre-calculus stuff.
So, please help me out to do this.
Homework Equations
Solve for x
1. (x-4)(x+5)>0
2. sin2x=sinx, 0<=x<=2x
The Attempt at a Solution
I tried number 1 it said x=4, x=-5 but it should be greater than 0.
I just...
Homework Statement
Using the data of Example 10-11, calculate the average speed of blood flow in the major arteries of the body, which have a total cross-sectional area of about 2.0cm2
Homework Equations
well... Actually, I don't know how to solve this problem.
The Example 10-11...
hmm... I don't know what you mean. Could you explain more easier to me?
Well.. Actually, I don't know where should I put mass of the balloon.
Could you write a equation exactly include mass of the balloon?
Homework Statement
" A spherical balloon has a radius of 7.35 m and is filled with helium. How large a cargo can it lift, assuming that the skin and structure of the balloon have a mass of 930 kg? Neglect the buoyant force on the cargo volume itself."
Homework Equations
So F(b) = (mass...
Homework Statement
I don't know why everybody ignore my urgent questions.
I do not know what to do seriously.
What is the difference in blood pressure (mm-Hg) between the top of the head and bottom of the feet of a 1.60-m-tall person standing vertically?
I know △p = pgh but in this...