IT IS THE THIRD ONE:
3+8.486
because I find it like that
Answer:
56
Step-by-step explanation:
1176 divided by 21 = 56
Answer:
29 ft
Step-by-step explanation:
the screens have 90 degree angles so they form right triangles with the diagonal, so use Pythagorean theorem to solve for the diagonal
diagonal² = 21² +20² , square and square root both sides of the equation
diagonal = √441+400, add
diagonal = √841, square root
diagonal = 29ft
The answer is 31.5 hope this helps
Answer: A. m=-4
Step-by-step explanation: