Answer:
11=10 9 =10 because 5 or more is bring the number up but 4 or lest it rest
Answer:33.41
Step-by-step explanation:
3 1/3 easy i trick i use is too divide the three by 10 you get 3 and there's 1 left so three wholes and 1/3 left
A meter m is 100 cm.
So m^2 = 100^2 cm^2
Then cm^2 = (m^2)/100^2 =m^2/10000
294cm^2 = 294/10000 m^2 or 0.00294 m^2
- Put brackets around the first two terms on the right. y = (-4x^2 - 16x) - 14
- Pull out the common factor in the first two terms. y = -4(x^2 + 4x) - 14
- Divide the middle term by 2. Add that inside the brackets. square y = -4(x^2 +4x +(4/2)^2 - 14
- y = -4(x^2 + 4x + 4) - 14 + 16 This is the step where most people stumble. The point is why is 16 added? It is because what you have done inside the brackets is multiplied 4 by - 4 (on the left). That means you have changed the equation by -16. To counter that, you must add 16 after the - 14. The result is y= -4(x^2 + 4x+4) + 2
- Express the terms inside the brackets as a square. y = - 4(x + 2)^2 + 2
B and D are both wrong. B has +4 outside the brackets. It is - 4
D is wrong because there is no 4 of any kind outside the brackets.
A is incorrectly represented inside the brackets as 16. That's not right
That only leaves C. <<<< Answer
Graphs
Notice that the red parabola and the green one are the same thing.
Red: y = -4x^2 - 16x - 14
Green: y = -4(x + 2)^2 + 2