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Vesna [10]
3 years ago
6

What number should go in the empty boxes to complete the calculation for finding the product of 0.53 × 0.67?

Mathematics
1 answer:
ruslelena [56]3 years ago
8 0

Answer:

53

Step-by-step explanation:

53

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The correct answer is Redbirds

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Johnny is correct because irrational numbers never end

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Mario has a business selling muffins. Let x be the price of a muffin. Then, the profit P for Mario’s business is given by p(x)=-
Rufina [12.5K]
To make a positive profit p(x)>0 we need to make:
-100 x^{2} +350x-150 \ \textgreater \  0

Now we solve this for x:
-2 x^{2} +7x-3 \ \textgreater \ 0

We have:
a = -2
b = 7
c = -3

We will use formula for quadratic equation:
x_{1} =  \frac{-b+ \sqrt{ b^{2}-4ac } }{2a}  \\  \\  x_{2} =  \frac{-b- \sqrt{ b^{2}-4ac } }{2a}  \\  \\  x_{1} =  \frac{-7+ \sqrt{ 49-24 } }{-4} = \frac{-7+5 }{-4} = \frac{-2 }{-4} = \frac{1}{2}  \\  \\  x_{2} =  \frac{-7- \sqrt{ 49-24 } }{-4}  = \frac{-7-5 }{-4} = \frac{-12 }{-4} = 3

We got two solutions. One is fraction other is whole number. We will not consider fraction because the amount of muffins sold must be whole number. So our solution is:
x>3
5 0
3 years ago
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Name a quadrilateral with exactly two pairs of congruent angles.
Inessa [10]

parallogram it has exactly 2 pairs of congruent angles

7 0
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An inflatable raft that you have jumped in to escape the monsters has 4500 cubic inches of air inside it when fully inflated. It
DedPeter [7]

Answer:

2628.48 cubic inches

Step-by-step explanation:

The inflatable raft has 4500 cubic inches of air inside it when fully inflated.

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Now, we have to calculate the volume of air that will be left in the raft after 8 days.

Therefore, the volume of air left in the raft after 8 days will be 4500[1-\frac{6.5}{100} ]^{8} =2628.48 cubic inches. (Answer)

8 0
3 years ago
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