For the restaurant bill, estimate the tip. Then find the exact amount of the tip. State your answers to the nearest hundredth.The restaurant bill is $18.86. Give the estimate of a 20% tip and the exact amount of a 20% tip.
A.
| Estimate: $1.00 | Exact: $0.94 |
B.
| Estimate: $4.00 | Exact: $3.77 |
C.
| Estimate: $3.00 | Exact: $2.83 |
D.
| Estimate: $2.00 | Exact: $1.89 |
Answer: B
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Solve the problem.Find the points on the curve 
that are closest to the origin.
A. (343, 
)
B. (7, 7
)
C. (7, ±7
)
D. (343, ±
)
Since its inception in 1971, socially responsible investments, or SRIs, have yielded returns to investors on par with investments in general. The assets of socially responsible funds (billions of dollars) from 1991 through 2002 is given by 
, 
, where
class="wirisformula" data-wiris-created="true" src="https://sciemce.com/media/3/ppg__cognero__3.3_The_Chain_Rule__media__b766f55f-7549-49cc-abcb-a5dbe8d13b8e.PNG" style="vertical-align:middle;" /> corresponds to the beginning of 1991. ? Find the rate at which the assets of SRIs were changing at the beginning of 2001. ? A. 4.050 billion of dollars/year B. 3.646 billion of dollars/year C. 1.771 billion of dollars/year D. 2.677 billion of dollars/year
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Solve the equation.log (x + 5) = log (4x - 4)
A. 
B. 
C. 
D. 