Factorising an equation is putting it into bracket form.
This has square numbers and so needs double brackets
(5x - y) (5x+y)
If you then check this by multiplying the brackets out again you will get:
5x^2 - 5xy + 5xy - y^2
The positive and negative 5xy's cancel each other out and you are left with its original form. Your answer is
(<span>5x - y) (5x+y)</span>
Answer:
Step-by-step explanation:
r/9 = -4
then multiply 9 to -4 which equals -36
at last, r is equal to -36
Answer:
are you trying to find the place on the number line?
if so, its a open circle starting at -3.0 then going to the right it stops at 1.0
PLEASE BE MORE DEFINED CUZ IM SUPER CONFUSED ILL EDIT MY ANSWER IF THIS IS WRONG BUT JUST TELL ME EXACTLY WHAT I NEEDA DO :)
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Temperature at noon: Tn=-2.9 f
Rate: r=+1.3 f/h
Total decreased: d=-3.7 f
Temperature at midnight: Tm=?
Tm=Tn+r(6 p.m.-12 m)+d
Tm=-2.9 f+(1.3 f/h)(18 h-12 h)+(-3.7 f)
Tm=-2.9 f+(1.3 f/h)(6 h)-3.7 f
Tm=-2.9 f+7.8 f-3.7 f
Tm=1.2 f
Answer: T<span>he temperature at midnight was 1.2 f</span>
