Answer:
D. 9 inches
Step-by-step explanation:
By using proportionality theorem,
Triangle BLM ~ Triangle BAC
![\frac{bm}{bc} = \frac{bl}{ba}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bbm%7D%7Bbc%7D%20%20%3D%20%20%5Cfrac%7Bbl%7D%7Bba%7D%20)
as ba = bl + la and as bl = la
Therefore, bl + la = 2bl
![\frac{bm}{bc} = \frac{bl}{2bl}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bbm%7D%7Bbc%7D%20%20%3D%20%20%5Cfrac%7Bbl%7D%7B2bl%7D%20)
Now, we get,
![\frac{bm}{18} = \frac{1}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bbm%7D%7B18%7D%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20)
as bc = 18
Hence,
![bm = 9 \: inches](https://tex.z-dn.net/?f=bm%20%3D%209%20%5C%3A%20inches)
Answer:
Step-by-step explanation:
42.00x6=252
<h3>
Answer: approximately 2.11</h3>
Work Shown:
x = 108 is the raw score we want to transform
mu = 104 is the mean
sigma = 1.9 is the standard deviation
z = (x-mu)/sigma
z = (108-104)/1.9
z = 4/1.9
z = 2.10526315789473 which is approximate
z = 2.11 rounding to two decimal places
I'm rounding to two decimal places because many z tables will work with this level of precision.
A. 168 explaination: 4* 3= 12 meaning 56 times 3 would be 168
For the order of operation use PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
For memorizing the order you could say
Please
Excuse
My
Dear
Aunt
Sally