Answer:
8x+140=180
8x=40
x=5°
Step-by-step explanation:
Sum of angles in a straight line=180°
(4,12) is the correct answer
Answer:
24
Step-by-step explanation:
since c=4 and d=48, we can re-write this equation
48-6 x 4
48 - 24
24
Answer:
0.3 or 30%
Step-by-step explanation:
Since no innocent student will ever be caught, the probability that a student sends an email and/or text message during a lecture AND gets caught is given by the product of the probability of a student sending a message (60%) by the probability of the professor catching them (50%) :

The probability is 0.3 or 30%.
Answer:
the standard deviations 12.2 if I'm correct.