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Vesnalui [34]
3 years ago
9

4. Steve has a card collection. He keeps 12 of the cards in a pocket, which

Mathematics
1 answer:
BabaBlast [244]3 years ago
4 0

Answer:

I think 80

Step-by-step explanation:

100/15=6.66666667

12x6.67=80.4

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Leokris [45]
Where's the question 12 a =
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3 years ago
FIND THE LENGTH AND WIDTH OF THE RECTANGLE
insens350 [35]
W = width
3w + 7 = length

Equation: 3w + 7 + w = 75
Combine like terms: 4w + 7 = 75
Subtract 7 to the other side: 4w = 68
Divide both sides by 4: w = 17

Width = 17
Length = 3(17) + 7, so 58
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3 years ago
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What's the answer to number 25?
tatyana61 [14]
Find the difference 

5/6-3/4 (you have to get the same denominators by multiply the individual fractions)

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3 years ago
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What is the equation of the axis of symmetry of the graph of y + 3x – 6 = –3(x – 2)2 + 4?
never [62]
Axis of symmetry = -b/2a
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y + 3x - 6 = -3 ( x²-4x+4) + 4
y + 3x - 6 = -3x² + 12x -12 + 4
y + 3x - 6 = -3x² + 12x -8
y = -3x² + 12x - 3x -8 + 6
y = -3x² + 9x -2
(a=-3, b=9, c=-2)
Axis of symmetry = -b/2a =  -9/2(-3) = -9 / -6 = -3 / -2 = 3/2
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4 0
3 years ago
Find y<br> y= |x−5| + |x+5| (if x&gt;5)
velikii [3]

Answer:

y=2x if x>5.

Step-by-step explanation:

|x-5|=x-5 \text{ if } x-5 \ge 0. This means when x \ge 5.

|x-5|=-(x-5) \text{ if } x-5 \le 0. This means when x \le 5.

It doesn't matter where the 5 is included since either x-5 or -(x-5) would product 0 at x=5.

|x+5|=x+5 \text{ if } x+5 \ge 0. This means when x \ge -5.

|x+5|=-(x+5) \text{ if } x+5 \le 0. This means when x \le -5.

The same statement here about x=-5 as I about x=5 with the earlier expression.

So anyways we have x>5.

This means y=|x-5|+|x+5| can be rewritten as

y=(x-5)+(x+5)=(x+x)+(-5+5)=2x+0=2x.

y=2x

6 0
3 years ago
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