The answer to the proble is (c) the power property. Look at the picture above!
<span>The length of AC is 8 units
The angle CDB is 67°
Since ABCD is a rectangle, that means that all of the angles are 90 degrees and that line segment AB is parallel to line segment CD. The line segment BD is a diagonal of the rectangle. The line segment AC is also a diagonal of the rectangle so it has the same length as given for segment BD which is 8. The angle ABD is the angle between the horizontal line and the diagonal. The angle CDB is also the angle between a horizontal line and the diagonal. So it also has the same measurement so it too is 67°.</span>
Answer:
The speed of the plane in still air is 89.83 mph and the speed of air is 8.17 mph.
Step-by-step explanation:
Let the speed of the plane in still air is u mph and the speed of the wind is v mph.
Now, the aircraft flew 490 miles in 5 hours with the wind.
Hence, ........ (1)
Now, the aircraft flew 490 miles in 6 hours against the wind.
So, ............ (2)
Now, adding equations (1) and (2) we get,
2u = 179.67
⇒ u = 89.83 mph
Now, from equation (1) we get,
v = 98 - u = 98 - 89.83 = 8.17 mph.
Therefore, the speed of the plane in still air is 89.83 mph and the speed of air is 8.17 mph. (Answer)
Answer:
11x -4
Step-by-step explanation:
The perimeter (P) is the sum of the three sides, which is ...
P = (4x +1) +(x -7) +(6x +2)
P = (4+1+6)x +(1 -7 +2)
P = 11x -4
Hello!
A regular pentagon has a sum of 540 degrees, and a pentagon has 5 angles.
To find each angle, we divide 540 by 5 to get 108 degrees.
So therefore, if a pentagon is a regular pentagon, then the measure of each interior angle is 108 degrees.