Answer:
Step-by-step explanation:
731² - 631² is the difference of squares.
731² - 631² = (731+631)(731-631) = 1362×100
therefore, 731² - 631² is divisible by 100
Answer:
y=-2x-7
Step-by-step explanation:
y=-2x
y-y1=m(x-x1)
y-(-7)=-2(x-0)
y+7=-2(x)
y+7=-2x
y=-2x-7
The answer is C 2/5 = 0.4
Answer: 5
Step-by-step explanation: Let x = the number
x^10 ÷ x^7 = 125
x^3 = 125
x = 5
