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2 years ago

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

1 answer:

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.

5 0

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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Please help I am struggling to get the answer to the question

hoa [83]

Step-by-step explanation:

where is the question??

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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

r/ 2 + − 2r ⋅ 2/ 2 + 6 − 3

r − 2 r ⋅ 2 /2 + 6 ⋅ 2/ 2 + − 3 ⋅ 2/ 2

r − 2 r ⋅2 + 6⋅ 2 − 3 ⋅ 2 /2

r − 4 r + 12 − 6 /2

−3 ( r − 2 ) /2

Hope that helps! Plz, mark brainiest! :D

Have a great day!

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