9 miles, you dont even need much math, just common sense. divide 12 by 4 and you get three. multiply 3 by 3 to get 9.
Answer:
(-1, -1)
Step-by-step explanation:
Let's set these two equations equal to each other to solve the system:
x = 2x + 1
Solving for x, we get x = -1
Plug this value of x back into any of the two equations to get y: y = 2 * (-1) + 1 = -1.
Thus, the point of intersection is (-1, -1).
Hope this helps!
Answer:
The p -value is less than 0.001.
Step-by-step explanation:
Given information:
Sample size = 25 chips
Sample mean = 985
Sample standard deviation = 10
Let as assume that sample is distributed normally.
The formula for test statistic

where,
is sample mean
μ is population mean.
s is sample standard deviation.
n is sample size.
The value of test statistic is



The p-value is

Therefore the p -value is less than 0.001.
If you divide 380 by 20, you get 19. To check this, multiply 20 x 19 to see 380. Hope this helps :D
Answer:
I think its 5 mph
Step-by-step explanation: