Step-by-step explanation:

Answer:
x = 15
Step-by-step explanation:
Since it a right triangle we can use the Pythagorean theorem
c² = a² + b²
c = hypotenuse
a, b = legs
plug in the values
x² = 9² + 12²
solve
x² = 81 + 144
x² = 225
x = 15
Answer:
a
Step-by-step explanation: I think A because it makes the most sence plz tell me if i'm wrong
Answer:
2 the scale factor is 4
3 a (6,6) b (12,18) c (18,6)
4 a (1,1) b(2,3) c (3,1)
5 the scale factor is 2
Step-by-step explanation:
have a good day :)
Answer:
Part A
5yr old boy.
Y=-(1/8)x+113/8 x=5
Y=-5/8+113/8=(113-5)/8=108/8
Y=13.5 hrs
Yes the estimated value of sleep by this function is reasonable as it is close to childhood more sleep is likely.
Part B
20yr old boy.
Y=-(1/8)x+113/8 x=20
Y=-20/8+113/8=(113-20)/8=93/8
Y=11.63 hrs
No the estimated value of sleep by this function is not reasonable as the normal sleep of 7-8 hrs is enough for adults.
Step-by-step explanation: