Answer:
If you're looking for a shortcut, I usually find the number 1 less than what you are multiplying 9 by, this case 8, and then add a number that gets to 9.
So 9x6 would be:
5+4=9
54
Step-by-step explanation:
When multiplying by 9s the product's two numbers added together =9.
Sorry if this is confusing. Hope this helps though.
First, you do 18 miles times 3 hours.
The answer is 54
The you do 15 miles time 2 hours
The answer is 30
You can add them all up and get 84 miles total. (D)
X = 0
y = 4
(0 , 4) as an ordered pair
Answer:
A= $11500
Step-by-step explanation:
Step one:
given data
P=10,000.00
r=5%,and
t=3 years
Required
The final amount A
Step two:
assuming a simple interest we have
A= P(1+rt)
substitute
A= 10000(1+0.05*3)
A= 10000(1+0.15)
A=10000(1.15)
A=$11500
Answer:
The standard error for the sampling distribution is 1.323.
Step-by-step explanation:
Let <em>X</em> = scores of girls and <em>Y</em> = scores of boys.
The information provided is:

As the population standard deviations are not known, use a pooled standard deviation to estimate the standard error of the sampling distribution.
The formula of pooled standard deviation is:

Compute the standard error for the sampling distribution as follows:

Thus, the standard error for the sampling distribution is 1.323.