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kkurt [141]
3 years ago
11

A rocket is fired straight up with an initial velocity of 256 ft/s. The rocket is fired from a platform that is 576 feet above t

he ground. Use 16 for g. 1.) Write a function, s(t), that models the height of the rocket at time t seconds. This rocket reaches a maximum height of 1600 ft; use this fact to validate your model.
Mathematics
1 answer:
zheka24 [161]3 years ago
7 0

Answer:

b kjbkj kj n jkhnji kjjjuhjkjhhj

Step-by-step explanation:

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The graph below shows the distance a train traveled over time.
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Answer:

B I do believe sorry if I'm wrong

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which of the following graphs shows a negative linear relationship with a correlation coefficient, r, close to -0.5.
Harrizon [31]

Answer:

In the graph attached there is a sample generated with a correlation coefficient r=-0.5.

Step-by-step explanation:

A value of r that is -0.5 shows that there is a certain correlation and that this correlation is negative.

As there are no examples in this question, I searched for a generator of random samples with a user-input correlation coefficient between the two variables.

In the graph attached there is a sample generated with a correlation coefficient r=-0.5.

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3 years ago
I need help ?!? What’s the answer
Ilia_Sergeevich [38]

Answer:

$6.5

Step-by-step explanation:

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5 0
3 years ago
When looking at the net of a cylinder, what is the relationship between the height of the rectangle and the cylinder?
Nastasia [14]

Volume of a cylinder = πr²h

where,

r is the radius of the cylinder

h is the height of the cylinder

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We can consider that a rectangle if rotated will form a cylinder.

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6 0
3 years ago
In a class of 30 students (x+10) study algebra, (10x+3) study statistics, 4 study both algebra and statistics. 2x study only alg
Vladimir [108]

Answer:

1. The Venn diagrams are attached

2. When the statistics students number = 10·x + 3, we have;

The number of students that study

a. Algebra = 128/11

b. Statistic = 213/11

When the statistics students number = 2·x + 3, we have;

The number of students that study

a. Algebra = 16

b. Statistic = 15

Step-by-step explanation:

The parameters given are;

Total number of students = 30

Number of students that study algebra n(A) = x + 10

Number of students that study statistics n(B) = 10·x + 3

Number of student that study both algebra and statistics n(A∩B) = 4

Number of student that study only algebra n(A\B) = 2·x

Number of students that study neither algebra or statistics n(A∪B)' = 3

Therefore;

The number of students that study either algebra or statistics = n(A∪B)

From set theory we have;

n(A∪B) = n(A) + n(B) - n(A∩B)

n(A∪B) = 30 - 3 = 27

Therefore, we have;

n(A∪B) = x + 10 + 10·x + 3 - 4 = 27

11·x+13 = 27 + 4 = 31

11·x = 18

x = 18/11

The number of students that study

a. Algebra

n(A) = 18/11 + 10 = 128/11

b. Statistic

n(B) = 213/11

Hence, we have;

n(A - B) = n(A) - n(A∩B) = 128/11 - 4 = 84/11

Similarly, we have;

n(B - A) = n(B) - n(A∩B) = 213/11 - 4 = 169/11

However, assuming n(B) = (2·x + 3), we have;

n(A∪B) = n(A) + n(B) - n(A∩B)

n(A∪B) = 30 - 3 = 27

Therefore, we have;

n(A∪B) = x + 10 + 2·x + 3 - 4 = 27

2·x+3 + x + 10= 27 + 4 = 31

3·x = 18

x = 6

Therefore, the number of students that study

a. Algebra

n(A) = 16

b. Statistics

n(B) = 15

Hence, we have;

n(A - B) = n(A) - n(A∩B) = 16 - 4 = 12

Similarly, we have;

n(B - A) = n(B) - n(A∩B) = 15 - 4 = 11

The Venn diagrams can be presented as follows;

6 0
3 years ago
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