Rewrite the function by completing the square. f(x)= 4 x^{2} +12 x +9f(x)=4x

2

+12x+9f, left parenthesis, x, right parenthesis, equals, 4, x, squared, plus, 12, x, plus, 9

f(x)=f(x)=f, left parenthesis, x, right parenthesis, equals

(x+(x+left parenthesis, x, plus

)^2+)

2

+right parenthesis, squared, plus

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

a

step-by-step explanation:

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true

show us the triangle so we can answer it