Decide whether or not the modulo system forms a group.{1, 2, 3, 4, 5}; multiplication modulo 6
A. Group
B. Not a group
Answer: B
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Write percent as decimal.1%
A. 10.0 B. 1 C. 0.1 D. 0.01
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.The pH value of a substance is 5.42. Find the hydrogen-ion concentration for this substance.
A. 263,026.8 B. 0.0000038 C. 1.7 D. 0.2
Determine the slope and y-intercept. Then use the slope and y-intercept to graph the equation by hand.y = -3x - 1
A. slope: -3, y-intercept: (0, 1)
B. slope: -3, y-intercept: (0, -1)
C. slope: 3, y-intercept: (0, -1)
D. slope: -3, y-intercept: (0, 1)
Write the decimal in words.8.4
A. eight and four tenths B. eight and four millionths C. eight and four thousandths D. eight and four hundredths