Subject- Solving Expressions (I will give Brainliest) 12 times a number and 5 (when it says a number its referring to a variable which in this case is n)
A. 12+5
B. 12n+5
C. 12n
D. 5-12n

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3