Which expression is equivalent to 4-(-7)?
A. 7 + 4
B. 4-7
C. -7-4
D. -4 + 7
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Find dy/dx using implicit differentiation ln(20+e^xy)=y

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i