PLEASE HELP! GIVING OUT BRAINLIEST
1 answer:
You might be interested in
Answer:
A. 3x^2 + 4 = 52
3x^2 = 52 - 4
3x^2 = 48
x^2 = 48/3
x^2 = 16
x =
x = 4
B. x^2 - 121 = 0
x^2 = 121
x =
x = 11
C. (b + 4 )2 = 49
2b + 8 = 49
2b = 49 - 8
2b = 41
b = 41/2
Answer:
x = 14
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² + x² = (14 )²
2x² = 392 ( divide both sides by 2 )
x² = 196 ( take the square root of both sides )
x = = 14
Thus the congruent legs are 14 cm