Hi need on hw plz me out my questions is - a rectangle has a length of 14cm and width 9.5cm the length increased by 6% and the width increased by 15%. a) calculate the percentage change in area of the rectangle. b) what is the original area as a percentage of the increased area of the rectangle? - plz can u show steps how to work these 2 questions out

Part a)

Part b)

Step-by-step explanation:

we know that

The original area of rectangle is equal to

so

if  the length is increased by 6% and the width is by 15%

then

the new area is equal to

The new area is (1.219) times the original area

Part a) Calculate the percentage change in area of the rectangle

convert to percentage

Part b) what is the original area as a percentage of the increased area of the rectangle?

Divide the original area by the increased area

Convert to percentage

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

mnkjn

step-by-step explanation: