Dados os coeficientes a, b e c escreva as equações do 2o grau corretamente: a) a= 2 b= -2 c= 3
b) a= 12 b=15 c= 0
c) a= 0 b= 1 c= 0
d) a= 3 b= -4 c= -9
e) a= 8 b= -8 c= 13
f) a= 11 b= 55 c= -13
g) a= 16 b= 17 c= -2
h) a= 3 b= 0 c= 0

the answer is mc^1-1jpeg

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24

45.36 feet per second.

step-by-step explanation:

to find the most accurate determination for the number of feet per second tyrone traveled on his way to work let us convert miles to feet and minutes to seconds.

1 mile = 5280 feet.

1 minute = 60 seconds.

now we will divide 158400 by 3492 to find the most accurate determination for the number of feet per second tyrone traveled on his way to work.

therefore, tyrone traveled on his way to work at the rate of 45.36 feet per second.