2x+5<9 solve that please!

Step-by-step explanation:

2x+5<9

= 2x<9-5

= 2x<4

*divide both sides by 2

= x<2

The solution is x < 2, the set of all real x which are smaller than 2.

Step-by-step explanation:

2x + 5 < 9 simplifies to 2x < 4 if we subtract 5 from both sides.

Dividing both sides by 2 yields x < 2

The solution is x < 2, the set of all real x which are smaller than 2.

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680