2 years ago

Find the number of turns or bumps in the graph of the function f(x) = x² - 25

Mathematics

1 answer:

Papessa [141]2 years ago

4 0

Answer:

1 turn

Step-by-step explanation:

this is what the graph would look like:

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ira [324]

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3,75/0,425 miles/hour =8,8235≈8,82 miles/hour

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3 years ago

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1 year ago

At 3pm, the length of the shadow of a thin vertical pole standing on level ground is the same as the height of the pole. A while

aliya0001 [1]

Answer: The height of the pole is 175.97 ( approx )

Step-by-step explanation:

Let the height of the pole is x cm,

Also, let the angle of elevation of the sun to the pole at 3 pm is $\theta$

Thus, by the question,

$tan\theta = \frac{\text{ The height of the pole}}{\text{ The height of the shadow}}$

$\implies tan\theta = \frac{x}{x}$ ( at 3pm the height of shadow = height of the pole)

$\implies tan\theta = 1$

$\implies \theta = 45^{\circ}$

Again, according to the question,

When the angle of elevation is $(\theta - 12^{\circ})$ ,

The height of shadow = x + 95,

$\implies tan(45-12)^{\circ}=\frac{x}{x+95}$

$\implies tan 33^{\circ}=\frac{x}{x+95}$

$\implies tan 33^{\circ}x + 95\times tan33^{\circ}=x$

$\implies tan 33^{\circ}x - x = - 95\times tan33^{\circ}$

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$x=175.969930202\approx 175.97\text{ cm}$

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3 years ago

Compare 2.3 and 2.03

Andru [333]

2.3= 2.03 so there for it is equal

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3 years ago