Were doing the same test its a.
Answer:
x + 6x+10 + x+2 = 180
x = 21
Step-by-step explanation:
The sum of the angles of a triangle add to 180 degrees
x + 6x+10 + x+2 = 180
Combine like terms
8x + 12 = 180
Subtract 12 from each side
8x+12-12 = 180-12
8x =168
Divide each side by 8
8x/8 = 168/8
x =21
Answer:
Step-by-step explanation:
23 hundredths = 0.23 = 2.3 * 10⁻¹
Sorry it's quite complex, simplify then... had to use an nspire
1. x=1.22248
2. x=15624.8
3. x=0.057522 (shown in picture)
4. x=-0.732487
too bad i cant upload more than 1 pic