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Mnenie [13.5K]
2 years ago
11

Plzz help 10 points ill give brainliest write an equation that's parallel to -x + 3y = 9

Mathematics
1 answer:
Feliz [49]2 years ago
7 0

Answer:

x=3y−9

Step-by-step explanation:

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If a person takes a prescribed dose of 10 milligrams of Valium, the amount of Valium in that person's bloodstream at any time ca
aleksandr82 [10.1K]

Answer:

(a)8.0mg

(b)36.87 hours

(c)-0.168

Step-by-step explanation:

The amount of Valium in that person's bloodstream at any time can be modeled with the exponential decay function A ( t ) = 10 e^{ -0.0188 t (t in hours)

(a)After 12 Hours

A ( 12) = 10 e^{ -0.0188*12}\\=7.98\\\approx 8.0 mg $(to the nearest tenth of a milligram)

(b)If A(t)=5mg

Then:

5= 10 e^{ -0.0188 t}\\$Divide both sides by 10\\0.5=e^{ -0.0188 t}\\$Take the natural logarithm of both sides\\ln (0.5)=-0.0188 t\\t=ln (0.5) \div (-0.0188)\\$t=36.87 hours (to two decimal places.)

(c)

A ( t ) = 10 e^{ -0.0188 t}\\A'(t)=10(-0.0188)e^{ -0.0188 t}\\A'(t)=-0.188e^{ -0.0188 t}\\$At 6 hours, the rate at which the amount of Valium is decaying therefore is:\\A'(6)=-0.188e^{ -0.0188*6}\\$=-0.168 ( to three decimal places)

3 0
3 years ago
Which type of graph would be most appropriate to display this data?
Amiraneli [1.4K]

Answer:

Option C is correct.  

Step-by-step explanation:

The given data would be most appropriately displayed by a box-and-whisker plot.  

a box-and-whisker plot will represent it by representing in form of rectangle with second and third quartile

And in box and whisker plot

The vertical line will represent the median.

Therefore, option C is correct.

3 0
3 years ago
Read 2 more answers
Read this main idea: The sun is the center of our solar system. Choose three details that go with the main idea.
Scorpion4ik [409]

Answer:

All of the planets in our solar system revolve around one star-our sun.

The sun's gravity holds the planets in place.

Astronomers long ago and today use star charts to map star locations.

Step-by-step explanation:

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7 0
2 years ago
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Statements Reasons 1. BE || CD 1. Given 2. ∠A ≅ ∠A 2. Reflexive Property 3. ∠ACD ≅ ∠ABE 3. Corresponding angles formed by parall
Leno4ka [110]

Answer:

The correct option is;

C) AA Similarity Postulate

Step-by-step explanation:

The given parameters are;

BE║CD Given

∠A is congruent to ∠A Reflective property

∠ACD is congruent to ∠ABE Corresponding angles formed by parallel lines and a transversal

∠ADC is congruent to ∠AEB Corresponding angles formed by parallel lines and a transversal

ΔABE ~ ΔACD AA Similarity Postulate

When two angles of one triangle are equal to the corresponding two angles of another triangle, given that the third angle of both triangles are also equivalent based on sum of angles of a triangle postulate, the two triangles are said to be similar based on Angle-Angle (AA) Similarity Postulate.

6 0
3 years ago
Show step-by-step please and thank you
bagirrra123 [75]

Answer:

It would be 20% the reason for this is all you have to do is divide 1300/6500 and it will give you .2 which represents 20% which is answer A

Step-by-step explanation:

5 0
3 years ago
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