What are the solutions to the equation x² = 169? Choose all answers that are correct. A. 13 B. –13 C. 84.5 D. –84.5
x² = 169 x = 13; x= -13
Updated 4/17/2014 5:01:58 PM
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x² = 169
x = 13; x= -13

A circular piece of glass has a radius of 0.8 meters. The glass sells for \$4.60 per square meter. What is the total cost of the circular piece of glass? A. \$2.01 B. \$9.24 C. \$23.11 D. \$36.98
Updated 4/14/2014 5:47:30 AM
A circular piece of glass has a radius of 0.8 meters. The glass sells for \$4.60 per square meter. The total cost of the circular piece of glass is \$9.24.
Area of a circle is pi*r^2 = 3.14*0.8^2 = 2.0096 square meter.
2.0096 * \$4.60 = \$9.24
hat are the square roots of 324? A. 162 and –162 B. 19 and –19 C. 18 and –18 D. 16 and –16
Weegy: What are the square roots of 324? C. 18 and –18 (More)
Updated 4/21/2014 11:50:32 PM
Thank you Deb; however, i am still not convinced, and i would like more experts to share their opinions.
Okay, that makes sense. But if the question is asked the way it is in this conversation, What are the square roots (plural) then tektek10's answer is correct.
Okay.
I agree with Deb. The question was asked clearly. I got the same answer as tektek's.
Thank you for your opinion Andrew.
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