Answer: 9 telephones Hope this helps, please consider making me Brainliest.
Step-by-step explanation:
This is basically division, so 3 3/8 = 27/8.
27/8 divided by 3/8 = 9.
Therefore, Rob needs 9 telephones.
Hope this helps, please consider making me Brainliest.
Answer:
y = -8
Step-by-step explanation:
There is no x-variable as that would make the line tilt.
Hope this helps! Have a nice day!
D) 4.5 Standard Deviations Above the Mean
All you have to do is add .2 to 6.6 until you reach 7.5
6.8
7.0
7.2
7.4
Then you only need half of .2 to reach 7.5, so it's 4.5 standard deviations above the mean
Answer:

Step By Step Explanation:
Remove Parenthesis: (a) = a

Multiply: 

Apply Exponent Rule 

Apply Exponent Rule: 

Answer: 38°
Using cosine rule,
a² = b² + c² -2bc cos(A)
Insert values from diagram
14² = 18² + 22.8² - 2(18)(22.8) cos(A)
196 = 324 + 519.84 - 820.8 cos(A)
-820.8 cos(A) = 196 - 324 - 519.84
-820.8 cos(A) = -647.84
cos(A) = -647.84/-820.8
A = cos^{-1} (-647.84/-820.8)
A = 37.88°
A ≈ 38°