Provide an appropriate response.Find the area of a square that measures 4 ft on a side.
Fill in the blank(s) with the appropriate word(s).
16 ft2
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Factor completely. If unfactorable, indicate that the polynomial is prime.x2 + 39x + 40
A. (x + 8)(x - 5) B. (x - 8)(x + 5) C. (x + 40)(x - 1) D. prime
Use the following information to solve the problem. An airport is located at point O. A short-range radar tower is located at point R. The maximum range at which the radar can detect a plane is 4 miles from point R.Assume that R is 4 miles east of O and 10 miles north of O. In other words, R is located at the point 
. An airplane is flying parallel to and 6 miles east of the north axis. (In other words, the plane is flying along the path 
.) What is the shortest distance north of the airport at which the plane can still be detected by the radar tower at R? Round your
answer to the nearest tenth of a mile. A. 23.5 miles B. 22.8 miles C. 6.5 miles D. 13.5 miles
Perform the indicated operation. Write the result in the form a + bi.(-3 + 8i) - 2
A. -1 + 8i B. -5 + 8i C. 5 - 8i D. -1 - 8i
Find the expression.u = 6i + 3j
Find 2u.
A. 12i + 3j B. 12i + 6j C. 8i + 5j D. 8i + 3j