1. what does it mean that nikoleta is in the 10th percentile for length and weight? is that a desirable statistic if she was in the 50th percentile at birth? (hint: here’s a crash course in percentiles.)

Explanation:

1. It means that Nikoleta is longer and heavier than 10% of children her age.

2. We generally expect that a change from being in the 50th percentile to the 10th percentile signifies a condition that is interfering with normal growth. That is not usually considered desirable.

Step-by-step explanation:

If Nikoleta is in the 10th percentile of length and weight, then that's another way of saying that she is in the bottom 10 percent compared to the rest of the population.  This is not a desirable statistic compared to what she was at birth.  Think of it this way, if you're really good at something like swimming and you're in the 95th percentile, that means you're better than 95% of the population.  You're in the TOP 5%.  

the answer is $42.96

step-by-step explanation:

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.