4x2 – 1 = 15
find the justification

see below

Step-by-step explanation:

4x^2 – 1 = 15

Add 1 to each side using the addition property of equality

4x^2 -1+1 =15+1

4x^2 =16

Divide each side by 4 using the division property of equality

4x^2/4 =16/4

x^2 = 4

Take the square root of each side

sqrt(x^2)= ±sqrt(4)  property of square roots

x = ±2

rectangle: 9 1/8 x 4 1/9 = 37 37/72in

parallelogram: b times h= 10.3 x 6.2 = 63.86

trapezoid: a+b/2 times h= 42.5

volume of prism: l times w times h= 36

it would not be increasing by nothing that i can see probably by 25 percent that is all i can sat\y for now if i have any thing else to say i will edit this.

step-by-step explanation: