Answer:
-12
Step-by-step explanation:
f(-3)= -(-3)2 + 6(-3)
= -(-6) -18
= 6 - 18
= - 12
The
temperature which has best degree of precision would actually be the
temperature reading which has similar decimal place with the error. So the best
answer would have 1 decimal and from the choices given above, this would be:
16.0°C
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Answer:
The associative property is grouping
Step-by-step explanation:
Order of operations, the order in which to do them
pemdas
parenthasees
exponents
multiplication or division (whichever comes first)
addition or subtraction (whichever comes first)
so
inside parenthaees first
20x/5=4x
now we has
[4x*(-x)]+3
multiply
4x*-x=-4x²
now we has
[-4x²]+3
-4x²+3 is the eavlauted form