Answer:
Δ = 60
Step-by-step explanation:
Given a quadratic in standard form : ax² + bx + c = 0 : a ≠ 0
Then the discriminant
Δ = b² - 4ac
Given
3x² + 6x = 2 ( subtract 2 from both sides )
3x² + 6x - 2 = 0 ← in standard form
with a = 3, b = 6 and c = - 2
b² - 4ac = 6² - (4 × 3 × - 2) = 36 - (- 24) = 36 + 24 = 60
Answer:
i think E.942 cm³ is answer
Volume = πr²h
so
3.14×5×5×12
= 942 cm²
Answer:
The correct choice is E
Step-by-step explanation:
Neither A, B, C, or D are correct, so the right answer must be E. By the way, E isn't shown in the picture.
Answer:
0.3
Step-by-step explanation:
4/5=0.8
0.8-0.5=0.3
Answer:
9 boards
Step-by-step explanation:
2/3 of the porch= 6 boards
so to figure out how much one third of the porch needs you find half of what it takes to fill in 2/3 of the porch and you get 3.
so 3=1/3 of the porch
then you simply do 3times 3 or 3+3+3 and you get 9
so it takes 9 boards to fill the whole porch