Which equation shows the associative property of addition?
a.-4(7+8)=-4x7(-4)x8
b.-7x(3x4)=(-7x3)x4
c.-8+(8+7)=(-8+8)+7
d.-3+(7+3)=-3+(3+7)

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}