first one is 1 the bottom is 10 2 in 20 3 in 30 4 in 40 5 in 50 6 in 60 7 in 70 8 in 80 9 in 90 then 100
Step-by-step explanation:
let the blank be x


therefore,

Answer: 1/3 must be divided into fourths
Step-by-step explanation:
Answer:
Charging by friction is the transfer of electrons from one uncharged object to another by rubbing.
First, we should calculate the lengths of the three sides (see the figure below).
The distance between two coordinates (x₁, y₁) and (x₂, y₂) is given by the formula

Because the triangle is a right angle (indicated by the figure), we can determine the lengths of BC and AC easily.
The length of BC is the change in the x-coordinates, and AC is the change in the y-coordinates.
BC = 2 - (-2) = 4
AC = 4 - 1 = 3
To find AB, use the distance formula (the same as the Pythagorean theorem).
AB = √[(2-(2)) ²+ (4-1)² ] = √(4²+3²) = √25 = 5
The area of the triangle is (1/2)*BC*AC = (1/2)*4*3 = 6
Answer: 6