Solve. How far from the base of the building should a 20-foot ladder be placed in order to lean a point on the building 16 feet above the ground?
A. 9 ft
B. 15 ft
C. 12 ft
D. 4 ft
Answer: C
Mathematics
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What is the value of C required to cause a low pass filter to cutoff at 18 KHz if R = 13.7 Kê?
a. 0.00015 æF b. 645 pF c. 0.004 æF d. 345 pF e. 0.0006 æF
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Convert the angle in radians to degrees.
A. 165° B. 210° C. 160° D. 150°
Mathematics
Find all rational zeros of f. Then (if necessary) use the depressed equation to find all roots of the equation f(x) = 0.f(x) = x5 + 4x4 - 6x3 - 24x2 + 5x + 20
A. {-4, -1, 0, 1, 
}
B. {-4, -1, 1, -
, 
}
C. {-1, 1, 4, -
, 
}
D. {-1, 0, 1, -
, 
}
Mathematics
Solve the equation by factoring.5x2 - 9x = 2
A. {-5, 2}
B. 
C. 
D. 
Mathematics