Solve the equation. Use a calculator where appropriate. If the answer is irrational, round to the nearest hundredth.log (4x + 3) = 1
A. 
B. - 
C. 
D. - 
Answer: A
Mathematics
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Solve the problem.Chandra has 3 liters of a 21% solution of sodium hydroxide in a container. What is the amount and concentration of sodium hydroxide solution she must add to this in order to end up with 7 liters of 13% solution?
A. 4 L of 10% solution B. 4 L of 8% solution C. 4 L of 5% solution D. 4 L of 7% solution
Mathematics
Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 15, 
= 12, ? = 29°
Find 
A. 13.1 B. 37.8 C. -590.7 D. 28.3
Mathematics
Write out the sum and evaluate.
A. 
2+ 
2 + 
2 + 
2 + 
2; 441
B. 
+ 
+ 
+ 
+ 
; 441
C. 
+ 
+ 
+ 
+ 
; 121
D. 
+ 
+ 
+ 
+ 
; 121
Mathematics
Find the requested value.f(0) for f(x) = 
A. -9 B. 6 C. -6 D. 9
Mathematics