Answer:
9
-3x-12
9
+6x-7-9x-5
(Group liked terms)
9
+6x-9x-7-5
( subtract the numbers ) -7-5= -12
9
+6x-9x-12
( add similar elements ) 6x-9x=-3x
9
-3x-12
Step-by-step explanation:
Answer:
The value of the missing angle is 103.
Step-by-step explanation:
Answer:
XZ
Step-by-step explanation:
X and Z are points so that makes 2 endpoints, and a line segment
Answer and explanation:
Given : A driving exam consists of 29 multiple-choice questions. Each of the 29 answers is either right or wrong. Suppose the probability that a student makes fewer than 6 mistakes on the exam is 0.26 and that the probability that a student makes from 6 to 20 (inclusive) mistakes is 0.53.
Let X be the number of mistake


To find : The probability of each of the following outcomes.
a) A student makes more than 20 mistakes
i.e. 





b. A student makes 6 or more mistakes
i.e. 


c. A student makes at most 20 mistakes
i.e. 
Using 'a' part 


d. Which two of these three events are complementary?
The complement of an event happening is the exact opposite: the probability of it not happening.
According to definition,
Option a and c are complementary events.