Answer:
b) x=13
Step-by-step explanation:
first divide 10 by 2 to get the base of one side of the triangle
the answer will be 5
Then using the Pythagorean theorem
a2+b2=c2
12^2+5^2=169
the square root of 169 will be 13
Answer:
use the formula given in the pic and you will get the answer
1. incorrect
2. correct
3. incorrect (?)
3x² + 8x - 3 = (3x - 1) (x + 3)