An Acute angle is an angle is under 90 degrees, a right angle is 90 degrees, and obtuse angle is greater than 90 degrees but less than 180 degrees.... which out of these angles you would choose an Obtuse angle.
Answer:
![x\geq -3](https://tex.z-dn.net/?f=x%5Cgeq%20-3)
Step-by-step explanation:
We can start by combining like terms:
![(3x-7x)+(-5+2)\leq 9\\-4x-3\leq 9](https://tex.z-dn.net/?f=%283x-7x%29%2B%28-5%2B2%29%5Cleq%209%5C%5C-4x-3%5Cleq%209)
We want to isolate x, so we must add 3 and divide by -4:
![(-4x-3\leq 9)+3\\(-4x\leq 12)/-4\\\\x\geq -3](https://tex.z-dn.net/?f=%28-4x-3%5Cleq%209%29%2B3%5C%5C%28-4x%5Cleq%2012%29%2F-4%5C%5C%5C%5Cx%5Cgeq%20-3)
Because we had to divide by -4, the inequality sign had to flip.
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: Answer Moderated_Pasted From restricted website:
- Brainly Moniters:
Answer:
78
Step-by-step explanation:
x + 21 = 3x - 15
- x - x
21 = 2x - 15
+ 15 + 15
36 = 2x
/ 2 / 2
18 = x
2 (x + 21)
2 (18 + 21)
36 + 42
78
Answer:
Step-by-step explanation:
five times a number increased by nine is
5x+9
x is the unknown number being multiplied by 5
increase= add
so add by 9