Bertie has just had a big win at the lottery. He spends 4/5 of his money on a large house.
He spends 3/4 of his remaining money on a luxury yacht.

He spends 2/3 of his remaining money on a trip into space.
He gives the remaining $50,000 to charity.
How much money did he win?

What is the average diastolic blood pressure for adults

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) = .

Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine, t, the number lf tokens jason bought