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miskamm [114]
3 years ago
13

A ball is thrown from a height of 70 meters with an initial downward velocity of 10/ms. The ball's height h (in meters) after t

seconds is given by the following.
h=70-10t-5t^2
Mathematics
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer:h=−5t2−10t+70

Step-by-step explanation:

<!>BRAINLIEST APPERICATED<!> :D

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Given the following rectangle and circle, at what approximate value of x are the two areas equal? x ≈ 5.8 x ≈ 3.4 The curves do
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The approximate value of x will be approximately equal to 3.4

<h3>Area of triangle and circle</h3>

The formula for calculating area of rectangle is expressed as:

A  = lw

  • l is the length
  • w is the width

Ar = (3x-1)(x+2)

Ar = 3x^2+6x-x-2

Ar = 3x^2 + 5x - 2

For the circle

Ac = πr²

Ac = 3.14(x-3)²

Ac = 3.14(x²-6x+9)

Ac = 3.14x² - 18.84x + 28.26

If the area are equal;

3x² + 5x - 2 = 3.14x² - 18.84x + 28.26

3.14x² - 3x² - 5x - 18.84x + 30.26 = 0
0.14x²-23.84x+30.26 = 0

On factorizing the equation, the approximate value of x will be approximately equal to 3.4

Learn more on area of rectangle here; brainly.com/question/25292087

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2 years ago
Rectangle ABCD is the same proportion as rectangle EFGH. The perimeter of
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Step-by-step explanation:

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2 years ago
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Darina [25.2K]

9514 1404 393

Answer:

  y = -1

Step-by-step explanation:

Sides marked with the same marking are congruent, so we have two equations:

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Adding the equations gives ...

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Then the second equation tells us ...

  y = 9 -2x = 9 -2(5) = -1

The value of y is -1.

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Find the difference <br> 16-(-4) <br> i need help ASAP
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The answer is 20!
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