Find the cross product and determine whether the proportion is true or false.
= 
A. 3120 = 3120; true
B. 3120 ? 2700; false
C. 2700 = 2700; true
D. 8190 ? 360; false
Answer: B
Mathematics
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Provide an appropriate response. Solve the quadratic for x: x2 - dx - 2p = 0
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Add or subtract.
- 
A. 
B. 
C. 
D. 11
Mathematics
Find the area A. Round the answer to three decimal places.
A. 0.778 yd2 B. 1.222 yd2 C. 2.443 yd2 D. 4.887 yd2
Mathematics
Solve the formula for the indicated variable.
+ 
= 
for R
A. R = R1R2(R1 + R2)
B. R = R1 + R2
C. R = 
D. R = 
Mathematics