Number of exams per semester = 5
Average of first four exams = 90
Therefore,
Total of first four exams = 90*4 = 360 marks
Based on 5 exams,
Average = 360/5 = 72
Answer:
<h2>
43°</h2>
Step-by-step explanation:
In a cyclic quadrilateral, the sum of two opposite angles are equal.
m<R + m<P = 180°
plugging the values:
3y + 8 + y = 180°
Combine the like terms:
4y + 8 = 180°
Subtract 8 on both sides
4y + 8 - 8 = 180 - 8
Calculate the difference
4y = 172
divide both sides of the equation by 4
4y/4 = 172/4
calculate
y = 43°
Hope this helps...
Answer:
f(x) = -5x - 1.
Step-by-step explanation:
The y values are decreasing by 5 as the x values increase by 1, so it looks like a linear function.
The slope = (4-9) / (-1 - (-2)) = -5 so we write:
y = -5x + c where c is the y-intercept.
When x = 0, c = -1 so the function is
f(x) = -5x - 1.
He can run 10.5 miles in 75 minutes