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vovikov84 [41]
3 years ago
7

The graph shows the solution to which system of inequalities?

Mathematics
1 answer:
postnew [5]3 years ago
5 0

Answer:

is A B and D

Step-by-step explanation:

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-8x^2+4x+5=0 using quadratic formula
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So you want to solve for x?

It would be nice if this would easily factor:
(-4x + 5)(2x +1)  = 0    This will not work!

So you need to use the quadratic formula:
a = -8, b = 4, c = 5

x = \frac{-b+/-  \sqrt{b^{2}-4ac} }{2a}

x = (-4 +/- \sqrt{16-4(-8)(5)})/2(-8)
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3 years ago
Of the following options, what could be a possible first step in solving the equation 8x + 3 = 2x − 15?
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Answer:

subtract 2x on both sides

Step-by-step explanation:

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The sum of two numbers is 51 and the difference is 11. what are the numbers?
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(51 - 11) : 2 = 20

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You mid morning break begins at 9:45 am and lasts for 10 minutes. you work for 2 hours and 10 minutes until your lunch break. wh
TiliK225 [7]
9:45 + 10 = 9:55
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Step-by-step explanation:

200 - 6 \times 19.98

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