10. Choose all true statements about .1%. A. It can be thought of as 1 out of 100 equally sized pieces.

B. It's like taking 1%, of something, dividing it into 10 equal pieces, then having
1 of those smaller pieces.

C. It's equal to 0.1.

D. It is one-tenth of 1%.

E. None of the above. All statements are false.

How do you find the circumfrance of a circle?

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .