<h3>Solution:</h3>
firstly solve parenthesis bracket ( )
-4×3 + 4×5x ≥ -6x + 9
-12 + 20x ≥ -6x + 9
Add 12 on both sides
-12 + 12 + 20x ≥ -6x + 9 + 12
20x ≥ -6x + 21
Add 6x on both sides
6x+ 20x ≥ -6x + 6x + 21
26x ≥ 21
divide both side by 26
26 x/26 ≥21/26
x ≥21/26
Answer:
Explanation:
1 ) the volume of helium in the balloon when fully inflated
= 4/3 π R³
= 4/3 x 3.14 x 5.3³
= 623.3 m³
2 ) force of gravity on the entire system ,but with no people
= (mass of the empty balloon and basket + mass of helium )x g
=( 129 + 623.3 x.18 )x 9.8
= 2363.7 N
3 ) magnitude of the buoyant force on the entire system (but with no people )
( Volume of empty balloon + basket + volume of helium ) density of air x g
( 0.057 + 623.3 ) x 1.23 x 9.8
= 7513.94 N
4 ) magnitude of the force of gravity on each person
Mass of each person x g
= 71 x 9.8
= 695.8 N
1. D, constant
Force must be in the direction of the velocity to change speed.
2. B. to the center of the curvature
This allows the vehicle to complete the turn.
Answer:
It should be A. Disturbance that travels through a medium or space, transmitting energy from one point to another.
I hope this helped you :)
