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coldgirl [10]
3 years ago
8

Problem 8

Mathematics
1 answer:
spayn [35]3 years ago
7 0

Answer:180 report cards

Step-by-step explanation:First, you have to find the ratio of the number of report cards Mrs. Jones folded to the number of report cards Ms. Albert folded and then find out How many did each

person fold?

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3 years ago
What is the vertex form of y=-1/2x^2 -2x -3?
STALIN [3.7K]

Answer:

y = − 1 2 ⋅ ( x + 2 ) 2 − 1

Step-by-step explanation:

To convert a quadratic from y = ax2 + bx + c form to vertex form, y = a(x - h)2+ k, you use the process of completing the square. Let's see an example. Convert y = 2x2 - 4x + 5 into vertex form, and state the vertex. Equation in y = ax2 + bx + c form.

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4 0
3 years ago
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Bumek [7]

Answer:

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5 0
2 years ago
(08.05)
Readme [11.4K]
The mistake is in step 3:

I: −2m =−12 − 2n
II: 2m = 8 + 8n

the student set both right sides of the equations equal (−12 − 2n = 8 + 8n), but the left sides aren't equal: first equation has -2m, second has +2m so the signs of one of the equations must be inverted first
5 0
3 years ago
20 - 4x = 2(4 - 8x) This needs solving
Olenka [21]

20 - 4x = 2(4 - 8x)

Make sure to do the parentheses first or factor out first

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add 16x to both sides

20 + 12x = 8

Subtract 20

12x = -12

Divide by 8

x = -1

8 0
4 years ago
Read 2 more answers
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