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Paladinen [302]
3 years ago
7

Est form. Lessons 3-5) 2 9

Mathematics
1 answer:
Gekata [30.6K]3 years ago
3 0

Answer:

what is this mean is there a question

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The area of a rectangle is 30 + 12x. List at least 3 possibilities for the length and width of the rectangle.
Gala2k [10]

Answer:

Below in bold.

Step-by-step explanation:

Area  = 30 + 12x and area is also = to width * length so we need to look for factors of 30 + 12x.

30 + 12x = 6(5 + 2x)

So  6 and 5 + 2x  is one possible answer.

3 and 10 + 4x is another.

12 and 2.5 + x is another.

If we multiply these pairs together we see that the result is

30 + 12x in each case.

6 0
3 years ago
The half-life of caffeine in a healthy adult is 4.8 hours. Jeremiah drinks 18 ounces of caffeinated
statuscvo [17]

We want to see how long will take a healthy adult to reduce the caffeine in his body to a 60%. We will find that the answer is 3.55 hours.

We know that the half-life of caffeine is 4.8 hours, this means that for a given initial quantity of coffee A, after 4.8 hours that quantity reduces to A/2.

So we can define the proportion of coffee that Jeremiah has in his body as:

P(t) = 1*e^{k*t}

Such that:

P(4.8 h) = 0.5 = 1*e^{k*4.8}

Then, if we apply the natural logarithm we get:

Ln(0.5) = Ln(e^{k*4.8})

Ln(0.5) = k*4.8

Ln(0.5)/4.8 = k = -0.144

Then the equation is:

P(t) = 1*e^{-0.144*t}

Now we want to find the time such that the caffeine in his body is the 60% of what he drank that morning, then we must solve:

P(t) = 0.6 =  1*e^{-0.144*t}

Again, we use the natural logarithm:

Ln(0.6) = Ln(e^{-0.144*t})

Ln(0.6) = -0.144*t

Ln(0.6)/-0.144 = t = 3.55

So after 3.55 hours only the 60% of the coffee that he drank that morning will still be in his body.

If you want to learn more, you can read:

brainly.com/question/19599469

7 0
2 years ago
Help and explain pls
Lina20 [59]

Answer: are they asking for the answer of the dotted line? If so, it might be 5 since it's the dotted line is opposing the side labeled 5cm.

Hope this helps:)

Step-by-step explanation:

5 0
3 years ago
ANSWER THIS ASAP FOR BRAINIEST What type of triangle is shown below?
vovangra [49]

Answer:

The last one

Step-by-step explanation:

A scalene triangle has no similarities between the angles or the sides

In the shown triangle none of the sides are similar and none of the angles are congruent therefore this is a scalene triangle

Reasons why its not the other answers

  • This is not an acute triangle. In order for it to be an acute triangle all of the angles have to have a measure less than 90 degrees. There is an angle with a measure of 120 degrees the triangle is not an acute triangle
  • This triangle is not an isosceles triangle. In order for it to be an isosceles triangles it has to have at least one congruent side. None of the sides are congruent therefore it is not an isosceles triangle
  • This is not a right triangle. In order for it to be a right triangle one of the angles has to have a measure of 90 degrees. Because none of the angles measure 90 degrees it is not a right triangle

In conclusion the answer would be that this triangle is a scalene triangle

8 0
3 years ago
Read 2 more answers
This rectangle shows 1/3 shaded,Which rectangle shows more than 1/3 shaded? A rectangle divided into six equal parts. One of the
castortr0y [4]

Answer:

The rectangle divided in 2 equal parts

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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