Find the indicated matrix.Let A = 
and B = 
. Find 4A + B.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the surface area of the geometric solid. If needed, use 3.14 as an approximation for ? and round the answer to the nearest tenth.Cone: r = 5 yd, h = 7 yd
A. 153.9 yd2 B. 109.9 yd2 C. 213.6 yd2 D. 78.5 yd2
Mathematics
Find the measure of the missing angle(s).
A. 46° B. 113° C. 67° D. 23
Mathematics
Find the perimeter. Use 3.14 for ? when needed.
A. 140.76 yd B. 80.07 yd C. 53.38 yd D. 104.38 yd
Mathematics
Perform the indicated operations. Write the resulting complex number in standard form. (3 + 9i) - (3 - 9i)
A. 18i B. -81i C. -18i D. -6
Mathematics