Answer:
(109x²+140xy+18xz+49y²+160yz+73z²) centimeters
Step-by-step explanation:
perimeter = sum of all sides
side A = (10x+7y)(10x+7y)
= 100x² +70xy +70xy +49y²
= (100x² +140xy +49y²) centimeters
side B = (3x+3z)(3x+3z)
= 9x² +9xz +9xz +9z²
= (9x² +18xz +9z²) centimeters
side C = (8z+10y)(8z+10y)
= 64z² +80yz +80yz +100y²
= (64z² +160yz +100y²) centimeters
Perimeter = 100x²+140xy+49y² + 9x²+18xz+9z² + 64z²+160yz+100y²
collect like terms
= 100x² +9x²+140xy+18xz+49y²+160yz+9z²+64z²
= (109x²+140xy+18xz+49y²+160yz+73z²) centimeters
Answer:
Negative
Step-by-step explanation:
The 8 positive numbers give you a positive, and a positive times negative is negative, then negative times negative is positive, and positive times negative is negative. Your final number would be negative.
The proper equation for midpoints is inside the following photo
Answer:
Yes
Step-by-step explanation:
<h3>Linear Equations</h3>
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant.
<h3>What is a Linear Equation?</h3>
An equation that has the highest degree of 1 is known as a linear equation. This means that no variable in a linear equation has an exponent more than 1. The graph of a linear equation always forms a straight line.
Answer:
All of these are the same. I would say D as theya re the same.
