A 0.4 g piece of copper is heated and fashioned into a bracelet. The amount of heat energy transferred by heat to the copper is 6500 units. If the specific heat of copper is 390 units, what Is the change of the copper's temperature?

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Explain why the factor 1.5 is broke. into two numbers in the model.