Convert the units.10 yd2 = 
ft2
A. 90
B. 120
C. 270
D. 30
Answer: A
Mathematics
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Solve the problem.The sum of a student's three scores is 224. If the first is 13 points more than the second, and the sum of the first two is 29 more than twice the third, then what was the first score?
A. 73 B. 86 C. 52 D. 65
Mathematics
Write the conjugate 
of the complex number z. Then find z
.z = 
+ 4i
A. 
= 
- 4i, z
= -3
B. 
= 
- 4i, z
= 29
C. 
= 
- 4i, z
= 42
D. 
= 
- 4i, z
= 3
Mathematics
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.csc 73°
A. 0.91 B. 1.05 C. -1.62 D. -1.48
Mathematics
Simplify to the form a + bi.i2 + i6
A. 0 B. 2i C. 2 D. -2
Mathematics