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2 years ago

Help pls 70 points :’(

Mathematics

2 answers:

aleksandrvk [35]2 years ago

7 0

Answer:

7.) 18.86m

8.) 15 inches

9.) 32 and 34

10.) 21 and 29

11.) change all the decimals in the equation into fractions.

Step-by-step explanation:

Flauer [41]2 years ago

3 0

Answer:

18.86m

15 inches

32 and 34

21 and 29

change all the decimals in the equation into fractions.

Step-by-step explanation:

OMG WHY I AM SO F LATE

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Find the larger of the two roots of the equation y = -2.2x2 + 63.5x - 17

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The larger of the two roots of the equation $y = -2.2x^2 + 63.5x - 17$ would be 28.59.

<h3>How to find the roots of a quadratic equation?</h3>

Suppose that the given quadratic equation is

$ax^2 + bx + c = 0$

Then its roots are given as:

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The given quadratic equation is

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now, the roots of the equation are

$x = \dfrac{-63.5 \pm \sqrt{63.5^2 - 4(-2.2)(-17)}}{2(-2.2)}\\\\\\x = \dfrac{-63.5 \pm \sqrt{4032.25 - 149.6}}{(-4.4)}\\\\\\x = \dfrac{-63.5 \pm \sqrt{3882.65}}{(-4.4)}\\\\\\x = \dfrac{-63.5 \pm 62.31}{(-4.4)}$

The two roots are 0.27 and 28.59.

Thus, the larger of the two roots of the equation $y = -2.2x^2 + 63.5x - 17$ would be 28.59.

Learn more about finding the solutions of a quadratic equation here:

brainly.com/question/3358603

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