Answer:
Step-by-step explanation:
Answer: 4 miles
Step-by-step explanation: what you need to is 5+3 which is 8 then 12-8 what is 4 so he needs to run 4 miles on Thursday
Answer:
Side TN
Step-by-step explanation:
The hypotenuse is always the opposite of the right angle of a triangle.
Answer: 1.8 s
Step-by-step explanation:
Given
The height of the spring mass system above the table is given by
The mass is performing S.H.M with frequency 
and 
time when mass returns to its original position
Step-by-step explanation:
well,
(y - 7)² = (y - 7)(y - 7)
remember how to multiply 2 expressions ?
you have to multiply every term of one expression with every term of the other expression and sum the results all up (incl. considering their individual signs, of course).
so, when we do the multiplication, we get
(y - 7)(y - 7) = y×y - 7×y - 7×y + (-7)×(-7) =
= y² - 14y + 49
and that is clearly different to y² - 49
FYI
y² - 49 is the result of
(y - 7)(y + 7)
because
y×y + 7×y - 7×y + (-7)(7) = y² - 49
