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2 years ago

6x² – x=2 Factor and solve

Mathematics

1 answer:

const2013 [10]2 years ago

5 0

Answer:

x=2/3 or x=−1/2

Step-by-step explanation:

6x²−x=2

6x²−x−2=2−2

6x²−x−2=0

(3x−2)(2x+1)=0

3x−2=0 or 2x+1=0

x=2/3 or x=−1/2

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Mrs. Pascal has a candy jar that contains 5 Jolly Ranchers and 13 jawbreakers. Solve each of the following problems and explain

ZanzabumX [31]

Answer:

260 jawbreakers

Step-by-step explanation:

The ratio is 5:13 so if the value of Jolly ranchers increased 20x then the number of jawbreakers would also increase by 20x. There are 260 jawbreakers.

8 0

2 years ago

*Urgent*

Anton [14]

Answer:

The anwser is D.

Step-by-step explanation:

The equation must be greater or equal to eleven but less then or equal to 15.

3 0

3 years ago

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The half-life of radium-226 is 1600 years. Suppose we have a 27-mg sample.

slega [8]

A function m(t)= m₀e^(-rt) that models the mass remaining after t years is; m(t) = 27e^(-0.00043t)

The amount of sample that will remain after 4000 years is; 4.8357 mg

The number of years that it will take for only 17 mg of the sample to remain is; 1076 years

<h3>How to solve exponential decay function?</h3>

A) Using the model for radioactive decay;

m(t)= m₀e^(-rt)

where;

m₀ is initial mass

r is rate of growth

t is time

Thus, we are given;

m₀ = 27 mg

r = (In 2)/1600 = -0.00043 which shows a decrease by 0.00043

and so we have;

m(t) = 27e^(-0.00043t)

c) The amount that will remain after 4000 years is;

m(4000) = 27e^(-0.00043 * 4000)

m(4000) = 27 * 0.1791

m(4000) = 4.8357 mg

d) For 17 mg to remain;

17 = 27e^(-0.00043 * t)

17/27 = e^(-0.00043 * t)

In(17/27) = -0.00043 * t

-0.4626/-0.00043 = t

t = 1076 years

Read more about Exponential decay function at; brainly.com/question/27822382

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5 0

1 year ago

Which function is graphed below?<br><br>

Masteriza [31]

Exponential Function.

$y = {a}^{x} \: \: (a > 0) \: \: (a≠1)$

Also the shown graph is a decreasing graph.

$y = {a}^{x} \: \: (0 < a < 1)$

The equation above is the equation of the graph that is shown in the picture.

8 0

2 years ago

(Giving out 40 pts to whoever answers this all)

Brut [27]

Das is 20 points per user, just fyi

1. distributive property
recall that a(b+c)=ab+ac
5(3x-4)=5(3x)+5(-4)=15x-20

2. bruh, I can't show that here, wait, nvm, see attachment
$\frac{4}{11}=0.\overline{36}$

3.
100% is double the price
45*2=90
the item will sell for $90 in store

4.
1/2+1/4+1/8=
4/8+2/8+1/8=
7/8
7/8 piazza was eaten

5. see attachment
it ends at 15

3 0

3 years ago

Read 2 more answers