Find the distance between the two points on the coordinate plane. Give an exact answer.(2, -6) and (6, -4)
A. 12 units
B. 12
units
C. 2
units
D. 2 units
Answer: C
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Evaluate the integral. 
A. -2sin-1
- x2
+ C
B. 4 sin-1
- 
+ C
C. 4 sin-1
- x
+ C
D. 
- 2 ln
+ C
Decide whether the graph of the equation opens up, down, to the left, or to the right; and whether it is wider, narrower, or the same shape as the graph of 
(or 
).f(x) = -2x2 - 9x
A. Up; narrower B. Down; wider C. Down; narrower D. Up; wider
Use the distributive property to remove parentheses.-9(6n + 8)
A. -54n + 8 B. -54n - 72 C. -3n - 1 D. -126n
Solve the problem.A chemist needs 140 milliliters of a 62% solution but has only 56% and 84% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 20 mL of 56%; 120 mL of 84% B. 30 mL of 56%; 110 mL of 84% C. 110 mL of 56%; 30 mL of 84% D. 120 mL of 56%; 20 mL of 84%