Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. 
C. 9b - 2
D. 
Answer: D
You might also like to view...
Solve the problem.A charged particle of mass m and charge q moving in an electric field E has an acceleration a given by 
where q and E are constants. Find 
.
A. 
= 
B. 
= - 
C. 
= 
D. 
= 
Find the hydrogen ion concentration of a saturated solution of calcium hydroxide whose pH is 10.3. Round your answer to three decimal places. ?
A. 
gram-ions per liter
B. 
gram-ions per liter
C. 
gram-ions per liter
D. 
gram-ions per liter
E. 
gram-ions per liter
Solve.After being struck with a hammer, a gong vibrates 45 vibrations in the first second and in each second thereafter makes 
as many vibrations as in the previous second. Find how many vibrations the gong makes before it stops vibrating.
A. 54 vibrations B. 270 vibrations C. 280 vibrations D. 49 vibrations
Subtract.-
- 
A. 12
B. - 11
C. - 12
D. - 9