Put h=50,
16t^2 -54t +45=0 (rewrite 54 as 30+24)
t=3/2 or 15/8 = 1.5 or 1.8(approx)
easy peasy
$3 divide by 4 smoothies to give you the price of each individual smoothie
comes out to .75 cents
now 9 times .75 cents equals 6.75 plus .75 cents because she bought a smoothie for herself
comes out to be $7.50
Is it number 21 you need help with?
Answer:
0.097 is the probability that the entire batch will be rejected
Step-by-step explanation:
The total number of CDs = 6500
Number of defective CDs = 110
Number of good CDs = 6500-110 = 6390
Out of this batch, 6 are randomly selected, then the probability that the entire batch is rejected is
1 – [probability of accepting the entire batch]
1 – [6390/6500 * 6389/6499*6388/6498*6387/6497*6386/6496*6385/6495]
= 0.097