1. There are red and blue marbles in a bowl.
1 answer:
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Answer:
principal square root
Step-by-step explanation:
Let .
Then
We have a negative square root for x, which is and a nonnegative square root,which is
The nonnegative square root is callled the principal square root .
Therefore the best complete to the statement;
A -------- is the nonnegative Square root of a number, is principal square root.
144.44 in² is the closest amount of paper she will use to wrap the gift.
Solution:
The given net is the shape of the cylinder.
Diameter of the circle = 4 in
Radius of the circle = 4 ÷ 2 = 2 in
Width of the container = 10.5 in
Length of the container is same as the circumference of the circle.
Area of the circle =
=
= 12.56 in²
Area of the 2 circles = 2 × 12.56 = 25.12 in²
Area of the rectangle = circumference × height
=
=
= 131.88 in²
Area of the net of the container
= Area of the circles + Area of the rectangle
= 12.56 in² + 131.88 in²
= 144.44 in²
Area of the net of the container = 144.44 in²
Hence 144.44 in² is the closest amount of paper she will use to wrap the gift.