MATHEMATICS COLLEGE

Round ALL word problem answers to TWO decimals! In in college, you study for two hours per dayfor a three-credit class. How many horus should you play to study if you take 13 credits per
semester? with explanation

Answers

Answer 1
Answer:

Answer:

so for what I'm thinking is 2*5 for the amount of hours in a school week and then you get 10 then times that by 15 for the amount of weeks in a semester which is 150 then times that by 3 and you get 450 thats the simple way so if you are also studying over the weekend it would be 630 of a entire year

Step-by-step explanation in the answer

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Choose the equation that represents the graph of the widest parabola?O y = 4x²
O y = -5x²
O y = 2x²
O y = - 3x²

Answers

Answer:

y = 2x^2

Step-by-step explanation:

Answer:

2x²

Step-by-step explanation:

A zoo has 400 animals. If 40% of the animals are sick, how many animals is
that

Answers

160 animals are sick

There are twelve signs of the zodiac. How many people must be present for there to be at least a 50% chance that two or more of them were born under the same sign

Answers

Answer:

5

Step-by-step explanation:

Given that each zodiac sign occupies 1/12 of a year.

Then the minimum number of persons for Y[all different signs] < 0.5,

The probability of at least two having the same sign is 1 minus the probability of all having different signs.

This can be represented as A [at least 2 person share the same sign] = 1 - Y[all different signs] must be > 0.5

Therefore we have 1 - 12/12 *11/12 * 10/12 *9/12 *8/12 = 0.38

This implies that the lowest number will be found to be 5

Hence, the correct answer is 5.

Final answer:

To have at least a 50% chance that two or more people share the same Zodiac sign, there must be 13 people. This is based on the Pigeonhole Principle in probability theory.

Explanation:

This question is related to the field of probability theory. It can be solved using the principle of the Pigeonhole Principle, which states that if there are more items than containers, at least one container must hold more than one item.

Let's visualize each Zodiac sign as a container. If we have 12 people (items), each one can occupy a different Zodiac sign (container), without any sign repeating. Therefore, the probability of two people sharing a zodiac sign would be less than 50% at this point.

However, once we introduce the 13th person, regardless of their Zodiac sign, they would have to 'share' a container (be born under a sign that at least one other person was born under) since there are only 12 Zodiac signs. Therefore, for there to be a 50% chance that two or more people share a Zodiac sign, there would need to be 13 people.

Learn more about Pigeonhole Principle here:

brainly.com/question/34617354

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a model rocket is fired straight up from the ground. The heigth of the rocket (in feet) at any time T (in seconds) can be modeled by the equation h= -16t^2+ 128 when will the height of the rocket be 240feets from the ground.

Answers

The height is modeled by,

h(t)=-16t^2+128

Where

t is time in seconds

We want to find the time, t, rocket will be 240 feet above the ground.

So we will substitute 240 into h(t) and find the corresponding value of "t".

The steps are shown below:

\begin{gathered} h(t)=-16t^2+128 \n 240=-16t^2+128 \n 16t^2=112 \n t^2=7 \n t=\sqrt[]{7} \end{gathered}

Square root of 7 is approximately 2.65 seconds.

So,

Answer2.65 seconds

Sheila can ride her bicycle 6000 meters in 15 minutes. How far can she ride her bicycle in 2 minutes.

Answers

Answer: about 500

Step-by-step explanation:

Answer:

Step-by-step explanation:

800 meters

Write 1.13 as a mixed number

Answers

This is the answer if you still need it

1 13/100

:)))))))))))))
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