The missing coefficient of the x-term after finding the product of (-x - 5)², is: C. 10.
<h3>What is the Coefficient of a Variable?</h3>
The coefficient of a variable is the numerical value that comes before the variable and multiplies it.
Find the product of (-x - 5)²:
(-x - 5)(-x - 5)
-x(-x - 5) -5(-x - 5)
x² + 5x + 5x + 25
x² + 10x + 25
The x-term is "10x". The coefficient is: 10.
Learn more about the coefficient of a variable on:
brainly.com/question/16895867
#SPJ1
3x +0 can be replaced by 3x because of "the additive identity property of real numbers: anything plus zero is that thing."
The equation for the length is L=2W - 3. The perimeter is 48 cm and the equation for finding the perimeter is P = 2W + 2L. Substitute the formula of L into the formula for perimeter and solve algebraically:

The correct answer is A) length = 15cm; width = 9cm
The answer is C. No, the adjacent sides are not perpendicular. (Apex)
The answers would be 1, 2, 4, 5, 8, 10, 20, and 40.