Answer:
x=1.3288 or -1.1288
Step-by-step explanation:
Given 
Subtract 4x from both sides

Since we can factor out 2 from whole equation, let's factor out 2.

Divide with 2 on both sides

We got the quadratic equation, we can solve for x using quadratic formula.





Average = Mean
Mean → Add all the numbers and divide by how many there are
3 + 9 + 14 + 5 + 8 + 12 + 7 = 58
There are 7 numbers.
58 ÷ 7 = 8.3
Answer = 8.3
Hope this helped :)
Answer:
Area of triangle = 192 cm²
Step-by-step explanation:
→ Area of triangle = 0.5 × Base × Height
Base = 24 cm
Height = 16 cm
→ Substitute in the values
Area of triangle = 0.5 × 24 × 16
→ Simplify
Area of triangle = 192 cm²
Sorry I know the last part only
correct version is Ei Whitney whom was born December 8 1765
the rest got cut off
There is a picture.
There 12 parts. Each one is 360/12=30°.
8-3=5 we have.
So, the angle will be 5*30=150°.