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3 years ago

Reduce to simplest form 6/3+(- 1/6)

Mathematics

2 answers:

rusak2 [61]3 years ago

8 0

Answer: 11/6

Step-by-step explanation:

zavuch27 [327]3 years ago

5 0

Answer:

11/6

Step-by-step explanation:

6/3+(-1/6)

2+(-1/6)

2-1/6

12/6-1/6

11/6

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Question 1 ( point) A 64g sample of Germanium-66 is left undisturbed for 12.5 hours. At the end of that period, only 2.0g remain

iVinArrow [24]

Answer:

2.5 half-lives

Step-by-step explanation:

Find $t_{h}$ in $N(t)=N_{0}e^{-kt}$ given $N(t) = 2, N_{0} =64,t=\frac{25}{2}$

$N(t)$ is the amount after the time $t$ , $N_0$ `is the initial amount, $t_{h}$ is the half-life

We know that after half-life there will be twice less the initial quantity:

$N(t_{h})=\frac{N_{0} }{2}=N_{0}e^{kt_{h} }$ .

Simplifying gives $\frac{1}{2} =e^{-kt_h} or k = -\frac{In(\frac{1}{2}) }{t_{h} } .$

Plugging this into the initial equation, we obtain that $N(t)=N_{0}e^\frac{In(\frac{1}{2}) }{t_{h} }$ or $N(t)= N_{0} (\frac{1}{2})^\frac{t}{t_h}.$

Finally, just plug in the given values and find the unknown one.

From $2=64(\frac{1}{2})^\frac{\frac{25}{2} }{t_h}$ , we have that $t_h$ = $\frac{25 In (2)}{2 In (32)\\}$

So you should get: $t_{h} =\frac{25 In (2)}{2 In (32)\\}=2.5.$

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5 0

3 years ago

Read 2 more answers

Write the equation of the line passing through (−1, 0) and (0, −3).

iragen [17]

Answer:

y = -3x -3

Step-by-step explanation:

We have two points so we can find the slope

m = (y2-y1)/ (x2-x1)

m = (-3-0)/(0--1)

= (-3-0)/(0+1)

= -3/1

= -3

We have the slope and the y intercept (where x=0) The y intercept is -3

y = mx+b where m is the slope and b is the y intercept

y = -3x -3

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3 years ago

a canoes can row 16 miles with the current in 2 hours. Rowing against the current, it takes the canoes 5 hours. determine the ra

babymother [125]

If I’m right it would be 9 just did in head so I’m not 100% sure

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3 years ago

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kobusy [5.1K]

Answer:

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Decreased by 25%,

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3 years ago

Haley is camping and needs to go from the campground to the waterfall. She hikes 3 miles north and 7 miles east. What is the sho

miskamm [114]

Answer:

7.61 miles

Step-by-step explanation:

Given that,

Haley hikes 3 miles north and 7 miles east.

We need to find the shortest distance from the campground to the waterfall. Let the distance is D.

It can be calculated as follows :

$D=\sqrt{3^2+7^2}\\D=7.61\ miles$

So, the shortest distance from the campground to the waterfall is 7.61 miles.

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3 years ago

Reduce to simplest form 6/3+(- 1/6)​

Reduce to simplest form 6/3+(- 1/6)