The expression 2^5 means to___. 1. multiply 2 times 5
2. multiply 2 factors of 5
3. move the decimal point 5 places to the right
4. multiply 5 factors of 2

If tana tanb=k, show that(1+k)cos(a+b)=(1-k)cos(a-b)

What kinds of numbers have an odd number of factors?

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)