Solve the proportion.
= 
A. 9
B. 2
C. 1
D. 4
Answer: C
You might also like to view...
Add. -8 + (-95)
A. 103 B. -103 C. 87 D. -87
Solve the problem.A national poll showed that 4 out of 7 registered voters planned to watch the presidential debate. Another national poll conducted by a different organization showed that 360 of 630 registered voters planned to watch the presidential debate. Is the number of voters who plan to watch the debate proportional to the number of voters in the poll for these two different polls?
A. No B. Yes
Solve the problem.The amount of a certain radioactive isotope present at time t is given by 
grams, where t is the time in years that the isotope decays. The initial amount present is 400 grams. How many grams remain after 20 years? Round to the nearest hundredth.
A. 379.25 g B. 397.87 g C. 234.78 g D. 681.48 g
Find the unit vector having the same direction as v.v = -3i + j
A. u = - 
i - 
j
B. u = - 
i + 
j
C. u = -3
i + 
j
D. u = - 
i + 
j