Serena is making a model of one of the Egyptian pyramids. The square base has sides that are all 4.2 in. Each of the triangular faces has a base of 4.2 in and a height of 3.6 in. How much paper would it take to cover the entire pyramid?

Amount of paper need = 47.88 in²

Step-by-step explanation:

Given:

Square base side = 4.2 in

Height of triangle = 3.6 in

Find:

Amount of paper need

Computation:

Amount of paper need = Area of square base + 4[Area of triangle]

Amount of paper need = Side² + 4[1/2][b][h]

Amount of paper need = 4.2² + 2[4.2][3.6]

Amount of paper need = 17.64 + 30.24

Amount of paper need = 47.88 in²

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

im here

step-by-step explanation: