B. Based on previous sales, Jed determines that he would like to order 30% more percussion instruments. How many more percussion instruments should Jed order? c. After the order arrives, Jed has a total of 130 string instruments. What percent of his string instruments are new?

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

use formula for the circle a=3.14

step-by-step explanation:

what is the rest of the question? ?

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.