Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution.
- 2x + 3y = 7
-4x + 9y = 27

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Which of the following statement about pascal's triangle are true?

Acylinder has volume 45π and radius 3. what is it’s height?