Graph the function.y = |cot 
| 
A. 
B. 
C. 
D. 
Answer: D
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The function 
is used to estimate wave height h, in feet, from wind speed w, in miles per hour.
?
A: Make a graph of h versus w for wind speeds up to 25 miles per hour.B: A small boat can sail safely provided wave heights are no more than 4 feet. Add the horizontal line represented by 
to the graph you made in part A.C: What range of wind speeds will result in safe sailing for small boats? Round your answer to two decimal places, if necessary.
What will be an ideal response?
Solve the quadratic equation by completing the square.x2 + 8x - 7 = 0
A. x = -1 ± 
B. x = -4 ± 
C. x = 4 + 
D. x = -4 ± 2
Do the following: (i) Write a formula for the function described. (ii) Evaluate the function for input 10.Function C computes the circumference of a circle with diameter d.
A. (i) C(d) = d2?
(ii) C(10) = 100? ? 314.2
B. (i) C(d) = d?
(ii) C(10) = 10? ? 31.4
C. (i) C(d) = 
(ii) C(10) = 
? 0.3
D. (i) C(d) = 2d?
(ii) C(10) = 20? ? 62.8
Solve the equation.-4(x + 5) = -4
A. x = 6 B. x = -4 C. x = 16 D. x = 4