Verify that the equation is an identity. Show that sinx-cosx/sinx+cosx = 1-2sinx cosx/1-2cos^2x

2 statements for "Reciprocal" and 2 for "Quotient" if possible?​

How many $20 bills do you need to have to make $280

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³