Step-by-step explanation:
the area of this rectangle is
(10 + 2x)(8 + 2x) = 168
80 + 20x + 16x + 4x² = 168
4x² + 36x = 88
because for the whole length you need to add x twice (left and right). the same for the width (top and bottom).
Answer:
∠BEC = 50°
Step-by-step explanation:
For better understanding of the solution, see the attached figure of the problem :
Minor arc BD = 94
Minor arc AC = 166
Now, the angle formed by the intersection of the two chords is ∠BED
And, the angle formed by the intersection of two chords is half the sum of angle measures of the corresponding chords.
Now, ∠BED + ∠BEC = 180 ( Adjacent angles )
⇒ ∠BEC = 180 - 130
⇒ ∠BEC = 50°
2/7 because there is a total of 7 people and they are 2 out of that 7
The graph of the sine function looks like this- x is essentially the degree measure (in radians), while y is the value of the sine function. The graph of the cosine function looks like this- As with the sine function, analysis of the cosine function will show that the graph corresponds to the unit circle.