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Tanzania [10]
2 years ago
7

3^x= 3*2^x solve this equation.

SAT
1 answer:
Vladimir [108]2 years ago
4 0

3x/2x=3

(3/2)x = 3/㏒ 3/2

㏒3/2  (3/2)x = ㏒3/2 3

Answer: x= ㏒3/2 3

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Answer: B

<u>Explanation:</u>

           rate    x    time

Chris:   40     x       t      = 40t

Amy:    60     x     t - 2   = 60(t - 2)

Use the distance formula:

d = \sqrt{(Chris)^{2}+(Amy)^{2}}

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Answer: B

<u>Explanation:</u>

  x² - 8x + 19

a=1  b=-8  c=19

Use the Quadratic formula to find the solutions for x:

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

  = \frac{-(-8) +/- \sqrt{(-8)^{2}-4(1)(19)}}{2(1)}

  = \frac{8+/- \sqrt{64-76}}{2}

  = \frac{8+/- \sqrt{-12}}{2}

  = \frac{8+/- 2i\sqrt{3}}{2}

  = \frac{2(4+/- i\sqrt{3})}{2}

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Solutions are:                  Factors are:

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Answer:

Large birds can't fly due to higher weight and weak wings.

Why large birds can't fly?

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