Use a calculator to find the following. Round your answer to four places past the decimal point.
?
sec 47.9°
?
A. 1.5806
B. 1.4246
C. 1.4916
D. 1.6366
E. 1.3686
Answer: C
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Factor.25 - (x2 + 2xy + y2)
A. (5 + x + y)(5 + x - y) B. (5 + x + y)(5 - x - y) C. (5 + x - y)(5 - x - y) D. (5 + xy)(5 - xy)
Provide an appropriate response.If an object is dropped, the distance it falls after t seconds is given by d = 
gt2. A student is determining how long it would take an object to fall 91 feet on planet x having gravity 9 ft/sec2. The student determines the two solutions 
. Are both correct answers? Why or why not?
What will be an ideal response?
Find the area.
A. 672 yd2 B. 1344 yd2 C. 1152 yd2 D. 1248 yd2
Express the indicated roots of unity in standard form a + bi.Cube roots of unity
A. cos 
+ i sin 
= 0.5 + 
i
cos 
+ i sin 
= -0.5 + 
i
cos 
+ i sin 
= -0.5 - 
i
B. 1 + 0i
cos 
+ i sin 
= -0.5 + 
i
cos 
+ i sin 
= -0.5 - 
i
C. 1 + i
cos 
+ i sin 
= -0.5 + 
i
cos 
+ i sin 
= -0.5 - 
i
D. 1 + 0i
cos 
+ i sin 
= 0.5 + 
i
cos 
+ i sin 
= -0.5 + 
i