Wefald Company issued $612,000, 8-year, 10 percent bonds on January 1, 2011. The

Question

Wefald Company issued $612,000, 8-year, 10 percent bonds on January 1, 2011. The bonds sold for $580,000. Interest is payable semiannually each June 30 and December 31. Record the sale of the bonds on January 1, 2011, and the payment of interest on June 30, 2011, using straight-line amortization. (Round your answers to the nearest dollar amount. Omit the "$" sign in your response.) January 1, 2011 (Click to select) Wages payable Bonds payable Cash Discount on bonds payable Bond interest expense Premium on bonds payable Accounts payable Accounts receivable (Debit ??) (Click to select) Accounts payable Discount on bonds payable Accounts receivable Bond interest expense Wages payable Cash Premium on bonds payable Bonds payable (Debit ??) Bonds payable (Credit??) June 30, 2011 Bonds interest payable (Debit ??) (Click to select) Premium on bonds payable Wages payable Bond interest expense Discount on bonds payable Cash Accounts receivable Accounts payable Bonds payable (Credit??) (Click to select) Bond interest expense Accounts receivable Wages payable Bonds payable Premium on bonds payable Cash Accounts payable Discount on bonds payable (Credit??) . . .

Explanation / Answer

x = r cos ? y = r sin ? dA = r d? dr Your integral becomes ?? (r sin ?) e^(r cos ?) r dr d? Integrate over ? first by letting u=r cos ?, du = -r sin ?, and u varies from r cos 0 to r cos p/2 = r to 0: = ? -r [ ? e^u du ] dr = ? -r [e^0 - e^r] dr = ? re^r dr - ? r dr The right integral is easily r²/2 from r=0 to 4, or 4²/2 = 8 Integrate the left by part, using v*dw with v=r and dw = e^r dr, so dv = 1 and w = e^r. ? v dw = vw - ? w dv = r e^r - ? e^r dr = (r - 1)e^r evaluated from r=0 to r, which is 3e^4 - (-1)e^0 = 3e^4 + 1

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