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Diano4ka-milaya [45]
3 years ago
6

in Ryan's V. Class 50% of the students like the teacher if 15 of the students like the teacher how many students are in that cla

ss​
Mathematics
1 answer:
Anton [14]3 years ago
6 0

Answer: 30 students.

Step-by-step explanation: They are saying 50% of the class like the teacher. We know that 50% is half of the 100% so that mean only half of the students like the teacher. Is 15 students like the teacher it means that 15 are half of the students in the class. The other half should be another 15. So 15+15=30 or 15x2=30.

I hope I didn’t make it to confusing.

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Evan tosses a ball from the roof of a building. The path of the ball can be modelled
DiKsa [7]

Answer:

Please find attached sketch of the path of the ball, having plot area and plot points, created with MS Excel

Step-by-step explanation:

Question;

The equation representing the path of the ball obtained from a similar question posted online are;

h₁ = -4·(t + 1)·(t - 5), h₂ = -4·(t - 2)² + 36, h₃ = -4··t² + 16·t + 20

The above equations represent the same path

The equation, h₁ = -4·(t + 1)·(t - 5), gives the roots of the height function, h(t), used in determining the height of the ball after time <em>t</em>

At (t + 1) = 0 (t = -1) or at (t - 5) = 0 (t = 5), the ball is at ground level

The ball reaches the ground, is at ground level at t = 1, and at t = 5 seconds after being tossed, where h(t) = 0

The equation of the path of the ball in vertex form, y = a·(x - 2)² + k, is h₂ = -4·(t - 2)² + 36, where, by comparison, we have;

The vertex of the ball = The maximum height reached by the ball  = (h, k) = (2, 36)

The coefficient of the quadratic term, t², is negative, therefore, the shape of the parabola is upside down, ∩, shape

The sketch of the path of the ball created with MS Excel, used in plotting the vertex, the initial value and the root points of the parabola, through which the ball passes and joining of the points with a 'smooth' curve is attached

5 0
2 years ago
The product of consecutive odd integers is 575. what is the largest integer? 25 23 525 need more information
hichkok12 [17]

sqrt(575) = 23.979

so 23 is one number

575/23 = 25

 the two numbers would be 23 * 25

25 is the largest one

4 0
3 years ago
Jenna flips two pennies 105 times how many times can she expect those coins to come up heads
alukav5142 [94]
The more observations you make the closer and closer the experimental probability will approach the theoretical probability.  In this case the theoretical probability is:

P(HH)=(1/2)(1/2)=1/4

So in 105 trials one would expect to get two heads:

105(1/4)=26.25 times.
7 0
3 years ago
Evaluate k (t) = 10t-19 at the specified input. <br> k(-7) = <br><br> Explain your answer.
mr_godi [17]
Plug -7 for x

10*-7 = -70 - 19 = -89

<span>k(-7) = -89</span>
8 0
3 years ago
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All the while the dog sat in the snow, its wolf-brush of a tail curled around warmly over its forefeet, its wolf-ears are forwar
slavikrds [6]

Answer:

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