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klasskru [66]
2 years ago
11

PLEASE HELP!!! Find the sum of all solutions to the equation 4x(x-3) = 23.

Mathematics
1 answer:
garik1379 [7]2 years ago
7 0
I think it’s -3 because I’m guessing you have to times the 4x with the number inside the parenthesis so it would be 4x-12x = 23 and 4-12 is -8 = 23 and 23 divided by -8 is -3
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Simplify –3 – 1 what is the answer to this ?
QveST [7]

Answer:

-4

Step-by-step explanation:

-3-1= -4

A negative minus a positive= a "larger" positive.

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2 years ago
Mary has completed 8 problems of her 20 question test. How much of the test has she completed in fraction form (simplity!)
allochka39001 [22]

Answer:

2/5

Step-by-step explanation:

She completed 8 out of 20 so we divide 8 by 20

8/20 can be simplified if we divide both the numerator and denominator by 4

which equals 2/5

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3 years ago
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hoa [83]

Step-by-step explanation:

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3 years ago
Simplify the expression. <br> 1/2r – 2r + 6 – 3
Hoochie [10]

Answer:

-3(r-2)/2

Step-by-step explanation:

r/ 2 − 2 r + 6 − 3

r /2 − 2 r⋅ 2/ 2+ 6 − 3

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7 0
3 years ago
The population of a small town is decreasing exponentially at a rate of 14.3% each year. The current population is 9,400 people.
KonstantinChe [14]

Using an exponential function, the inequality is given as follows:

9400(0.857)^t < 6000

The solution is t > 2.9, hence the tax status will change within the next 3 years.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

For this problem, the parameters are given as follows:

A(0) = 9400, r = 0.143.

The population after t years is modeled by:

A(t) = A(0)(1 - r)^t

A(t) = 9400(1 - 0.143)^t

A(t) = 9400(0.857)^t

The tax status will change when:

A(t) < 6000

Hence the inequality is:

9400(0.857)^t < 6000

Then:

(0.857)^t < \frac{6000}{9400}

\log{(0.857)^t} < \log{\left(\frac{6000}{9400}\right)}

t\log{0.857} < \log{\left(\frac{6000}{9400}\right)}

Since both logs are negative:

t > \frac{\log{\left(\frac{6000}{9400}\right)}}{\log{0.857}}

t > 2.9.

The solution is t > 2.9, hence the tax status will change within the next 3 years.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

7 0
2 years ago
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