The intensity I of light (in lumens) at a distance x meters below the surface is given by I = Iok x , where Io is the intensity at the surface and k depends on the clarity of the water. At one location in the Arctic Ocean, Io = 9 and k = 0.7. Find the intensity at a depth of 6 meters. Round your answer to two decimal places.
?
A. 1.05 lumens
B. 2.70 lumens
C. 1.06 lumens
D. 6.30 lumens
E. 31.55 lumens
Answer: C
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Construct a truth table for the statement.(p ? q) ? (~p ? q)
A. 
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | F |
B.
| T | T | F |
| T | F | T |
| F | T | F |
| F | F | F |
C.
| T | T | T |
| T | F | T |
| F | T | T |
| F | F | T |
D.
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
Answer the question.How can the graph of f(x) = 
- 4 be obtained from the graph of y = 
?
A. Shift it horizontally 11 units to the right. Stretch it vertically by a factor of 4.
B. Shrink it horizontally by a factor of 
. Shift it 4 units down.
C. Shift it horizontally 11 units to the left. Shift it 4 units up.
D. Shift it horizontally 11 units to the left. Shift it 4 units down.
Find the future value of the ordinary annuity. Interest is compounded annually, unless otherwise indicated.R = $10,000, i = 8.8% interest compounded quarterly for 
A. $643,860.31 B. $45,596.57 C. $175,454.85 D. $189,314.85
Identify the polynomial as a monomial, binomial, trinomial, or none of these.-9
A. None of these B. Monomial C. Binomial D. Trinomial