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andrew11 [14]
3 years ago
12

HELP ASAP!!!!!! 20 Points and will mark brainliest for correct answer!

Mathematics
2 answers:
s2008m [1.1K]3 years ago
8 0
6x^2 - 2x = 7

6x^2 - 2x - 7 = 0

x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}

x = \dfrac{-(-2) \pm \sqrt{(-2)^2 - 4(6)(-7)}}{2(6)}

x = \dfrac{2 \pm \sqrt{4 + 168}}{12}

x = \dfrac{2 \pm \sqrt{172}}{12}

x = \dfrac{2 \pm 2\sqrt{43}}{12}

x = \dfrac{1 \pm \sqrt{43}}{6}
guapka [62]3 years ago
5 0
Hey there :)

6x² - 2x = 7

Bring all terms to one side and equate to 0
6x² - 2x - 7 = 0

Lets see if we can solve by factoring:
Sum = - 2  and   Product = - 7 
We do not have factors for this

Therefore, we need to solve by quadratic equation { Refer to the attached picture }

6x² - 2x - 7 = 0
 ↓      ↓     ↓
 a      b     c

x = \frac{-(-2)+/- \sqrt{(-2)^2-4(6)(-7)} }{2(6)}
x = \frac{2+/- \sqrt{ 172 } }{12} = \frac{2+/-2 \sqrt{43} }{12}

x = \frac{1+/-\sqrt{43}}{6}
         ↓
      Will be your answer



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3 years ago
Which logarithmic equation is equivalent to the exponential equation below?
anzhelika [568]

Answer:

log_e^{67.21}= a

Step-by-step explanation:

The equation is ,

\implies 67.21 = e^a

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2 years ago
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3 years ago
If G is the midpoint of FH find FG<br>fg=11x-7 gh= 3x+9
gavmur [86]

Solution:

we are given that

If G is the midpoint of FH,  it mean that

FG=GH

we are also given that

FG=11x-7 ,GH= 3x+9

So we can write

11x-7=3x+9\\&#10;\\&#10;11x-3x=7+9\\&#10;\\&#10;8x=16\\&#10;\\&#10;x=2

So FG=11x-7=11*\frac{1}{2}-7=11*2-7=15


3 0
3 years ago
When a man observed a sobriety checkpoint conducted by a police​ department, he saw 671671 drivers were screened and 77 were arr
kifflom [539]

Answer:

P(\overline W)=0.98957

Step-by-step explanation:

Number of drivers Screened = 671

Number Arrested for Driving While Intoxicating = 7

If the W denotes the event of screening a driver and getting someone who is intoxicated.

The Probability of W, P(W)=\frac{7}{671}=0.01043

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From Probability Theorem,

P(W)+P(\overline W)=1\\Since \: P(W)=0.01043\\0.01043+P(\overline W)=1\\P(\overline W)=1-0.01043\\=0.98957

8 0
3 years ago
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