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mina [271]
3 years ago
13

Is 2.200929 rational

Mathematics
1 answer:
Alja [10]3 years ago
7 0
Yes, it is rational! Explanation: rational numbers can be made into fractions.
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A soccer ball is kicked toward the goal. The height of the ball is modeled by the function h(t) = −16t2 + 48t where t equals the
Stolb23 [73]

Answer:

  • t = 1.5; it takes 1.5 seconds to reach the maximum height and 3 seconds to fall back to the ground.

Explanation:

<u>1) Explanation of the model:</u>

  • Given: h(t) = -16t² + 48t

  • This is a quadratic function, so the height is modeled by a patabola.

  • This means that it has a vertex which is the minimum or maximu, height. Since the coefficient of the leading (quadratic) term is negative, the parabola opens downward and the vertex is the maximum height of the soccer ball.

<u>2) Axis of symmetry:</u>

  • The axis of symmetry of a parabola is the vertical line that passes through the vertex.

  • In the general form of the parabola, ax² + bx + c, the axis of symmetry is given by x = -b/(2a)

  • In our model a = - 16, and b = 48, so you get: t = - ( 48) / ( 2 × (-16) ) = 1.5

<u>Conclusion</u>: since t = 1.5 is the axys of symmetry, it means that at t = 1.5 the ball reachs its maximum height and that it will take the same additional time to fall back to the ground, whic is a tolal of  1. 5 s + 1.5 s = 3.0 s.

Answer: t = 1.5; it takes 1.5 seconds to reach the maximum height and 3 seconds to fall back to the ground.

8 0
3 years ago
Three friends shared 5/6 of a pizza equally. What fraction of the whole pizza did each friend get?
Ymorist [56]

Answer:

<em><u>5/18</u></em>

Step-by-step explanation

when you divide 5/6 by 3 you multiply 5/6 by 1/3 and you get 5/18!

I hope this helps!

4 0
3 years ago
I will mark brainlist and 20 extra points
grandymaker [24]
(X1=1, y1=7) and (x2= -4, y2 =-8)

Slope = ( y2-y1)/(x2-x1)= (-8-7)/(-4-1)= -15/-5=3

Slope is 3
5 0
3 years ago
Read 2 more answers
What is an equation in point-slope form of the line that
-Dominant- [34]

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is (-3, -1) and slope 2

The equation is

<h2>y + 1 = 2(x + 3)</h2>

Hope this helps you

5 0
2 years ago
Jenny has 12 bottles of iced tea in her cooler. If there are 6 liters of iced tea in all, how many milliliters does each bottle
lesya692 [45]

Answer: Each bottle contains 500 milliliters of iced tea

Step-by-step explanation:

Hi, to answer this question we have to divide the total liters of iced tea (6) by the number of bottles (6).

Mathematically speaking

6 /12 = 0.5 liters  

So, each bottle contains 0.5 liters of iced tea.

Since 1 liter = 1000 milliliters, weave to multiply the result by 1000 to convert to milliliters.

0.5 liters x 1000 milliliters = 500mililiters

Each bottle contains 500 milliliters of iced tea

6 0
3 years ago
Read 2 more answers
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