2 questions plz answer both

●3 x^2 - 16 x + 20

in this case you will write -16 as a difference

3 x^2 - 6x - 10 x + 2

●2 x^2 + 25x + 50

write 25 as a sum

2 x^2 + 20x + 5 x + 50

above is correct i reviewed it id be surprised if its wrong.

Step-by-step explanation:

give above brainliest

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: