Answer:
The driver was traveling at approximately 68.2 miles per hour
Step-by-step explanation:
Recall that one km equals approximately 0.62 miles, therefore, in order to find the speed of the driver in miles per hour, we just need to convert the 110 km into miles.
if one km equals 0.62 miles, then 110 km will equal the product of 110 times 0.62 miles. That is:
110 * 0.62 = 68.2 miles
Then the speed will translate into :
110 km/h = 68.2 mi/h
Answer:
The pitcher has lost 1 13/24 cups of water
Step-by-step explanation:
Answer:
(10,0)(-1,0)
Step-by-step explanation:
x^2 - 9x - 10 = 0
(x - 10)(x + 1) = 0
The two solutions are
x - 10 = 0
x = 10
or
x+1 = 0
x = - 1
Answer:
Step-by-step explanation:
Tthe population is normally distributed and the sample size is .
Since the population standard deviation is unknown and the sample standard deviation , must replace it, the t distribution must be used for the confidence interval.
Hence with degrees of freedom of 21, .(Read from the t distribution table)
The 98% confidence interval can be constructed using the formula:
.
From the question the sample mean is dollars and the sample standard deviation is dollars.
We substitute the values into the formula to get
Therefore, we can be 98% confident that the population mean is between is between 19.22 and 44.78 dollars.
The measure of the right angle is 90 degrees. add 25 to 90 to get 115. 180-115= 65 so your answer is 65