Answer:
Step-by-step explanation:
We are given two velocity vectors with its three components in unit notation:
Airplane's velocity:

Crosswind velocity:

Now, if we want to know the velocity of the airplane when it is affected by the wind, we have to add these two velocity vectors:

Adding both vectors:

A. 38
Let X = seventh graders
6th graders are twice the number of 7th graders; therefore, 6th graders will be 2X.
The total number of students is 57.
2X + X = 57
3X = 57
X = 57 / 3
X = 19
IF X represents the 7th graders; there are 19 seventh graders present.
Since 6th graders are represented by 2X; Then, 2 * 19 = 38 is the number of 6th graders present.
Add both numbers to check: 19 + 38 = 57.
I am pretty sure it is 50 by 64 centimeters but if it is not I am really sory for the mistake.
1. Check the sketch of the problem.
2. In right triangle DCE,

tan 50 can be found to be 1.19 using a scientific calculator or other software.

x=1.19*50=59.5 (feet)
3. The height of the building is 59.5+5=64.5 (feet)
Answer: 64.5 (feet)
Answer:
the answer would be 13
Step-by-step explanation: