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3 years ago

5.275 to 2 decimal places

Mathematics

1 answer:

Natalka [10]3 years ago

7 0

The answer would be 52.7.5

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Math please help tutor :)

Fantom [35]

Answer:

8.5

Step-by-step explanation:

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3 years ago

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This parabola has<br> x-intercepts

slega [8]

Answer:

see the explanation

Step-by-step explanation:

we have the quadratic equation

$y=-16x^{2} +32x-10$

This is a vertical parabola open downward

The vertex is a maximum

Find the x-intercepts of the quadratic equation

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$-16x^{2} +32x-10=0$

Solve the quadratic equation

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16x^{2} +32x-10=0$

$a=-16\\b=32\\c=-10$

substitute in the formula

$x=\frac{-32(+/-)\sqrt{32^{2}-4(-16)(-10)}} {2(-16)}$

$x=\frac{-32(+/-)\sqrt{384}} {-32}$

$x=\frac{-32(+/-)8\sqrt{6}}{-32}$

$x=\frac{-32(+)8\sqrt{6}}{-32}=\frac{32(-)8\sqrt{6}}{32}=0.39\ sec$

$x=\frac{-32(-)8\sqrt{6}}{-32}=\frac{32(+)8\sqrt{6}}{32}=1.61\ sec$

therefore

This parabola has two x-intercepts representing the times when the dolphin's height above water is zero feet

8 0

3 years ago

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Plz help ibzcbiscibscibaciv

lisov135 [29]

Answer:The answer is 2 if you use a calculator.

Step-by-step explanation:

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3 years ago

Help me please (I need the answer asap...)

Roman55 [17]

Answer: x = 6
x+x=19-7
2x=12
Hence the answer is x=6

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3 years ago

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Triangle ABC and DEF are similar

Artist 52 [7]

Answer:

e and f is 1.34

Step-by-step explanation:

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3 years ago

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