Answer:
And based on this the best answer would be:
a. mean = 4; standard deviation = 2.68
Step-by-step explanation:
For this case we have the following data given:
1,5,8,5,1
We can find the sample mean with the following formula:
And replacing we got:
And for the deviation (assuming that the correct approximation is the deviation for a population) we can calculate the deviation with the following formula:
And replacing we got:
And based on this the best answer would be:
a. mean = 4; standard deviation = 2.68
X=number of months
how much is deducted total=number of months times amount deducted per m onth
amount deducted per month=45
number of months=x
how much deducted total=45x
460-deducted total is more than 100
460-45x>100
solve for x
add 45x to both sides
460>100+45x
subtract 100
360>45x
divide both sides by 45
8>x
answer is 7 months
if he does 8 months, then he will have exatly 100 and 100 is noe more than 100
answer is 7 months
The answer to your question has been given below :
Mr. Penner has 27 hats
Ms. Blocker has (2/3 of 27) hats
=(27÷3)x2
=9x2
=18 hats
Ms. C has 3 times of Ms. Blocker's hats.
So, Ms. C has (3x18)
= 54 hats. (Ans)
Answer:
70 degrees
Step-by-step explanation:
The angle opposite x and x itself are vertical angles, meaning that they have the same angle measure. Since the sum of the interior angles of a triangle is 180 degrees:
x+55+55=180
x+110=180
x=180-110=70
Hope this helps!
Answer: 140 ft^2
Step-by-step explanation:
Triangle:
A = 1/2bh
A = 1/2(6 • 4)
A = 1/2(24)
A = 12
Square:
A = bh
A = 16 • 8
A = 128
Add them
128 + 12 = 140 ft^2
