Select true or false for each statement.
for a real number a, a + 0 = a
for a real number a, a + (-a) = 1
for a real numbers a and b, | a - b | = | b - a |
for real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c).
for rational numbers a and b when b ≠ 0, is always a rational number.

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076