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Anika [276]
3 years ago
5

What is the solution to log (9x)-log2^3= 3?

Mathematics
2 answers:
RoseWind [281]3 years ago
5 0

Answer:

  1. b

Step-by-step explanation: i got it right on edg

olga_2 [115]3 years ago
3 0

For this case we have that by definition of properties logarithm is met:

log_ {b} (x) -log_ {b} (y) = log_ {b} (\frac {x} {y})

So, rewriting the expression we have:

log (\frac {9x} {2 ^ 3}) = 3\\log (\frac {9x} {8}) = 3

By definition of logarithm we have to:

log_ {b} (x) = yis equivalent tob ^ y = x

So:

10 ^ 3 = \frac {9x} {8}\\9x = 8 * 10 ^ 3\\9x = 8 * 1000\\9x = 8000\\x = \frac {8000} {9}

ANswer:

x = \frac {8000} {9}

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Amount of potatoes that Zoe has = 5 pounds
Quantity of potatoes that Zoe need for each recipe = 5/(3/4) 
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One bar of candy A and two bars of candy B have 774 calories. Two bars of candy A and one bar of candy B contains 786 calories.
vampirchik [111]
◆ Define the variables:

Let the calorie content of Candy A = a
and the calorie content of Candy B = b

◆ Form the equations:

One bar of candy A and two bars of candy B have 774 calories. Thus:

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Two bars of candy A and one bar of candy B contains 786 calories

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◆ Solve the equations:

From first equation,
a + 2b = 774
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Put a in second equation
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3 years ago
Given that the diameter of Circle A is 6 cm , and the radius of Circle B is 18 cm , what can be concluded about the two circles?
ELEN [110]

Answer:

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The area of circle B is 36 times greater than the area of circle A

Step-by-step explanation:

we have

<em>Circle A</em>

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The radius of circle A is

r=6/2=3\ cm -----> the radius is half the diameter

<em>Circle B</em>

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therefore

The area of circle B is 36 times greater than the area of circle A

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