Answer:
a) You roll a die 25 times. Let X be the number of times that you roll "3".
* Is a Binomial
b) The SJSU football team will play 12 games next season. They have a 70% chance of winning each conference game and a 60% chance of winning each nonconference game. Let X be the number of games the SJSU football team wins next season.
* Not a Binomial because probability of success is not constant
c) Evelyn has a 75% chance of getting an A in each class she takes. Let X be the number of times Evelyn earns an A during four years at SJSU.
* Is a Binomial
An equation
what else could it be?
(3x + 5)° + (10x - 7)° = 180°
13x + (-2) = 180
13x = 180 + 2
13x = 182
x = 14
∠QRT = 3 * 14 + 5 = 42 + 5 = 47°
∠TRS = 10 * 14 - 7 = 140 - 7 = 133°
Answer:
-9
Step-by-step explanation:
x+2=-7
x+2-2=-7-2
x=-9
Answer:
k = 3.5
Step-by-step explanation:
You need to divide all the numbers.
21/6 = 3.5
24.5/7 = 3.5
28/8 = 3.5
31.5/9 = 3.5
So, the answer is 3.5.
