Answer:
B) 5 hours
Step-by-step explanation:
First, find the amount of mph between 60 and 80:
80 - 60
= 20 mph
Since the speed increases 4 mph per hour, we can find how long it will take to get to 80 mph by dividing 20 by 4:
20/4
= 5
So, the correct answer is B, 5 hours
Answer:
3
Step-by-step explanation:
Answer: John is most likely to win.
Step-by-step explanation: John is most likely to win because he can roll the following numbers:
2,6
3,5
4,4
5,3
6,2
Oh Neil Can only roll these numbers
5,6
6,5
So John would most Likely win
Step-by-step explanation:
7/8 - 1/4 = 5/8
__z_________z_
Answer: D
H0: μ=522
H1: μ>522
Step-by-step explanation:
The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.
So, for this case;
The null hypothesis is that the mean score equals to 522
H0: μ=522
The alternative hypothesis is that the mean score is greater than 522.
H1: μ>522
