(7a-b+3)-(-2a-8b+8)
Apply plus/minus rule.
-(-a)= a and -(a)=-a
we get
(7a-b+3)-(-2a-8b+8)= 7a-b+3+2a+8b-8
Add like terms
=9a+7b-5
Answer: 9a + 7b - 5
Answer:
T = 94.59 degree C
Step-by-step explanation:
Given data:
P= 83.4 kPa

P = 0.834 bar
for Saturated table
P = 0.8 bar T = 93.50 degree C
P = 0.9 bar T = 96.71 degree C
from interpolation method

z = 1.0914
T = 93.5 + z = 94.59 degree C
Probability =
(number of possible ways to succeed)
divided by
(total number of possible outcomes) .
Number of ways to succeed = 2 (pick the 'A' or the 'L')
Total number of possible outcomes = 5 (the cards on the table) .
Probability of success = 2/5 = 40% .