Answer:
you solve for the mean by adding all of the answers together then dividing by how many numbers you had too add.
Step-by-step explanation:
D 14 because d is the only answer that makes sense
The mode would be 1. Mode means the number that is shown the most
Answer:
21
Step-by-step explanation:
21 should be added in 123 to be a perfect square,i.e,
12^2=144
144-123
21
Answer:
She should cut each diagonal piece 10 ft long.
Step-by-step explanation:
The bottom face of the box is a rectangle 8 ft by 6 ft.
A diagonal of a rectangle divides the rectangle into two congruent right triangles. With a right triangle you can use the Pythagorean theorem.
a = length of rectangle = leg of right triangle
b = width of rectangle = other leg of right triangle
c = diagonal of rectangle = hypotenuse of right triangle
a^2 + b^2 = c^2
(8 ft)^2 + (6 ft)^2 = c^2
64 ft^2 + 36 ft^2 = c^2
c^2 = 100 ft^2
Take the square root of each side.
c = 10 ft
Answer: She should cut each diagonal piece 10 ft long.