Answer:
The average of the provided grades are 86.75
Step-by-step explanation:
Consider the provided information.
On three examinations, you have grades of 85, 78, and 84. In order to get an A your average must be at least 90.
In the last exam you get 100 marks now calculate the average by using the formula:
86.75 is less than 90 so you will not get A.
The average of the provided grades are 86.75
Answer:
15.7 meters
Step-by-step explanation:
Applying,
s = πd∅/360°..................... Equation 1
Where s = length of the arc formed, d = diameter of the circle, ∅ = angle formed by the center of the circle, π = pie.
From the question,
Given: d = 15 meters, ∅ = 120°
Constant: π = 3.14
Substitute these values into equation 1
s = (3.14×15×120)/360
s = 15.7 meters
Hence the lenght of the arc formed is 15.7 meters
9514 1404 393
Answer:
x = 6
Step-by-step explanation:
The parallel lines divide the sides proportionally. So, we can write the equation ...
x/4 = (x +3)/6
3x = 2(x +3) . . . . . multiply by 12
x = 6 . . . . . . . . . . . subtract 2x
