Use the distributive property to write without parentheses.- (6z - 2w + 6y)
A. -6z + 2w - 6y
B. -6z + 2w + 6y
C. -6z - 2w - 6y
D. -6z - 2w + 6y
Answer: A
You might also like to view...
Use a calculator or computer program to approximate the value of y(T) using Euler's method with the given time step on the interval [0, T]. Then, using the exact solution given, find the error in the approximation to y(T) (only at the right endpoint of the time interval). Round answers to five decimal places, do not use intermediate rounding.y'(t) = 
, y(0) = 7; ?t = 0.2, T = 1; y(t) = 
A. y(1) ? 7.08532; 7.07107 B. y(1) ? 7.08532; 0.20000 C. y(1) ? 7.08532; 0.01425 D. y(1) ? 7.07107; 0.01425
Solve the linear equation.
= 
+ 
A. 
B. {0}
C. 
D. 
The pH of a solution is given by the formula 
, where 
is the concentration of hydrogen ions in moles per liter in the solution. Use this formula to solve the problem.Lower levels of pH indicate a more acidic solution. If the pH of solution A is 4.2 and the pH of solution B is 6.9, how much more acidic is solution A than solution B?
A. 0.0000630 times as acidic B. 501.2 times as acidic C. -0.0000630 times as acidic D. 0.00200 times as acidic
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: all real numbers range: all real numbers intercepts: (-2, 0), (0, 2), (2, 0) symmetry: none B. function domain: {x|x ? 0} range: {y|y ? -2} intercepts: (-2, 0), (0, 2), (2, 0) symmetry: y-axis C. function domain: {x|x ? -2} range: {y|y ? 0} intercepts: (-2, 0), (0, 2), (2, 0) symmetry: none D. not a function