20 cm is the answer good luck
X-13=42
x is the "variable", you're taking 13 away from that, and the answer is also given, 42.
Let the original number be x
X^2 + 11 = 36
Subtract 11
X^2 = 25
Square root both
X = 5
Solution: her original number is 5
Answer:
5x² - 13x - 6
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
5x(x - 3) + 2(x - 3) ← distribute both parenthesis
= 5x² - 15x + 2x - 6 ← collect like terms
= 5x² - 13x - 6
Answer:
A
Step-by-step explanation:
X is moving by 9s and Y is moving by 10
