A gardener has 8300 plants. he wants to plant these in such a way that the number of rows and the number of columns remain same. find the number of plants left out in this arrangement

19

Step-by-step explanation:

row x columns = total

91 x 91 = 8281 plants

8300 - 8281 = 19 plants left out of arrangement

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°