Answer:
number 2
Step-by-step explanation:
brainly plz
ANSWER:
The triplets will be 7 years each. 21, divided by 7.
Using the formula <span>Z = (X - μ) / σ, X being 900, </span>μ being 1100, and <span> σ being 100, we can get the Z-score of -2.</span>
16x²=(4x)², 9=3², 24x=2*4x*3
so this is a perfect square: (4x+3)²
