Are these correct. If they're not tell me which and how to solve, please?

answer is in the explanation

Step-by-step explanation:

your #1 is incorrect the answer is 4 1/3. Your answer for #6 is also incorrect, the correct answer is -4 2/3

1 & 6 are wrong.

The answer for 1 is actually 2 1/3

and the answer for 6 is actually 2 2/3

Step-by-step explanation:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2