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kicyunya [14]
3 years ago
7

It takes Julie 75 minutes to read 60 pages. 

Mathematics
2 answers:
Montano1993 [528]3 years ago
3 0
A) 5/4
b)75:60  525:350. It will take 525 min. to read the entire book
c) 8 hours and 75 min.
Galina-37 [17]3 years ago
3 0

Answer:

1. 1 1/4

Step-by-step explanation:

2. 437 min, 7 hours and 28 minutes

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Solve x2 + 14x + 17 = –96 for x
jarptica [38.1K]

For this case we have to:

Given the quadratic equation of the form:

ax ^ 2 + bx + c = 0

The roots are given by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

If we have: x ^ 2 + 14x + 17 = -96

We can rewrite it in the following way:

x ^ 2 + 14x + 17 + 96 = 0\\x ^ 2 + 14x + 113 = 0

Where:

a = 1\\b = 14\\c = 113

Where we have:

x = \frac {-14 \pm \sqrt {(14) ^ 2-4 (1) (113)}} {2 (1)}

x = \frac {-14 \pm \sqrt {(196-452)}} {2}

x = \frac {-14 \pm \sqrt {-256}} {2}

By definition: \sqrt {-1} = i

x = \frac {-14 \pm \sqrt {256} i} {2}

x = \frac {-14 \pm16i} {2}

x = \frac {-14} {2} \pm \frac {16i} {2}

x = -7 \pm8i

Thus, the roots are given by imaginary numbers:

x_ {1} = - 7 + 8i\\x_ {2} = - 7-8i

Answer:

x_ {1} = - 7 + 8i\\x_ {2} = - 7-8i


5 0
3 years ago
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Sam received a 15 percent tip for delivering pizzas. If the cost of the pizzas was $247.62, what was the total amount he collect
saveliy_v [14]
247.62 x 0.15 = 37.143

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I hope that helped :)
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It's the third one and the last one are the only ones that make immediate sense.
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Answer:

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Step-by-step explanation:

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