Answer:
a. 3x +51=180
x=43
b. 3(43)+51 =180 51 degrees; 129 degrees
Step-by-step explanation:
3x +51 =180
3x=180-51
3x=129
x=43
1 foot = 30.48 centimeters
Multiple 30.48 centimeters by 7
30.48 centimeters times 7 =
213.36
Given that r = (7,3,9) and v=(3,7,-9), evaluate r + v. A. (-21,-21,81) B. (10,10,0) C. (21,21,-81) D. (-10,-10,0)
ololo11 [35]
Answer:
B. (10, 10, 0)
Step-by-step explanation:
Each component of the sum is the sum of corresponding components:
r + v = (7, 3, 9) +(3, 7, -9) = (7+3, 3+7, 9-9) = (10, 10, 0)
Answer: Approximately 859.06926 meters
Explanation:
Draw a right triangle. The vertical leg is 780 meters and the horizontal leg is 360 meters. The hypotenuse represents the magnitude of the resultant vector. Use the pythagorean theorem to find it.
a^2+b^2 = c^2
c = sqrt(a^2 + b^2)
c = sqrt( 780^2 + 360^2 )
c = 859.06926
The distance from the original starting point to the finish line is roughly 859.06926 meters.
Step-by-step explanation:
hope it is helpful to you